Busting Nuts in Nana's Butt
A couple hours later Sam felt his nuts rumbling, signaling that it was probably time to blast another fat load of cum. He stepped out of his bedroom and immediately furrowed his brow as he heard what sounded like his Nana straining repeatedly downstairs. Curious as to the cause of the sounds, Sam walked into the living room to see what was making his Nana grunt and huff and puff like that. "Nana? Are you okay? You sound like you're-" He stopped dead in his tracks and his jaw dropped.
Sam's Nana was on the living room floor with a yoga video playing on the TV as she followed along with the woman on screen, her skin slick with sweat from exerting herself. Sam's eyes bulged out of his head as he watched his Nana - currently on her hands and knees - lower her head and shoulders until her face was smushing against the carpet, her big heavy titties spreading out under her a little and stretching her form-fitting tank top. Then she arched her back and pushed her gigantic fat ass out toward him! Her massive cheeks were squeezed into a pair of yoga pants so tight they looked painted on, clearly showing off every contour of her fat jiggly booty and even the cellulite on her thighs and ass cheeks. Making the sight even lewder was the fact that her fat ass had strained her yoga pants so much that they were riding down over her cheeks and giving Sam a clear view of not only the top of his Nana's skimpy thong, but also more than a few inches of her ass crack where those huge doughy cheeks of hers swallowed up her g-string. As he stared in horny awe, he heard her grunt again as she stretched, arching her back even more, her ass cheeks clenching and releasing a few times, a few beads of sweat running down the small of her back and into her clearly visible ass crack. Each time she squeezed her fat clap cakes together, then relaxed them, they wobbled so enticingly that Sam felt his nuts hitch and his cock pulse.
His Nana was inadvertently presenting her whole fat ass like she was offering it up to him.
Cynthia looked over her shoulder and smiled. "Oh hey there, Sammy. Is it time for me to milk another load from your horse nuts?" She clenched and released her ass cheeks a few more times as she smiled at her grandson.
"I, uh… I…." Sam just stared at his Nana's double-wide ass, his mind going blank. He didn't even register her question, and in fact had already forgotten what he was trying to stammer out.
"Having trouble with your words, honey? Is it cause you're staring at my big fat booty like it's a piece of cake you wanna take a big bite out of?" She wiggled her ass back and forth, making her huge cheeks wobble and rub together, her ass crack looking like it was actively gobbling up her g-string.
"I didn't mean to, um… I just… it's right there and it's… so big!" Sam said, practically drooling.
Cynthia just laughed and shook her head. "You didn't mean to, huh? Sam, my perfect little angel, didn't I tell you that you can do literally anything you want while you're staying with me? So if you like the way my butt looks, you can stare at it all you want. You can get an even closer look if you like. Hell, you can do way more than just look at it! I thought maybe you didn't like my ass because when I asked you to rub sunscreen all over it the first day you were here, you barely touched my butt before you ran off. Do you like it, sweetie? Do you like my fat ass? Cause this cake is yours, baby boy. You can enjoy it any way you want."
Sam stared at his Nana's ass and tried to process the fact that she was now explicitly offering it up for his use, his free use, however he wanted. As he stared she started bouncing her ass up and down, twerking for him and making her cheeks clap together and sling drops of sweat.
PLAP! PLOP! PLUP! PLEP!
Ggg-gg-GLLURGG!!
Sam's big hefty balls responded for him, gurgling loudly in approval at the sight of his Nana twerking her fat sweaty ass for him.
"Mmmm, sounds like your big boys are hungry for some Nana cake, huh? Come on over here, baby boy. It's time you and my ass got more acquainted."
Sam swallowed hard, then nodded. He slowly approached his Nana, eyes locked on her wobbling booty the whole time, until he was standing only a few inches away from her big juicy ass jutting out toward him.
"So… I can do… anything I want with… with your butt, Nana?" Sam asked hesitantly. Even with her offering her ass up like that to him, he still felt shy about indulging in the strange and powerful urges he was feeling from staring at her massive glutes.
"Yep!" she said happily. "Literally anything you like, anything you can think of. Don't be shy, baby. You know all the fun stuff you've done with my mouth and my face? Well, you can do that and even more with my big ol' butt if you want to." She reached behind her and slapped her own ass hard as fuck, making a very loud KLAP sound and sending her cheeks rippling and jiggling like crazy. Sam groaned and his cock lurched in his shorts, his balls gurgling loudly again.
His Nana had now very clearly given him the green light, with no ambiguity whatsoever. Because she'd been so generous with her hands and mouth the last few days, Sam was beginning to become quite comfortable with taking his Nana up on her offers to jerk and suck the huge loads from his balls. Up until now though, she'd only used those two methods to make him nut. Though he'd been eye-fucking her gargantuan ass since he got there, he still hadn't felt bold enough yet to ask if he could play with it. Now though, because she was being so forward, and because she'd demonstrated that she was deeply invested in his pleasure, he felt his shyness toward her ass start to melt away.
Sam dropped to his knees, stretched his arms out wide, clapped his little hands against the sides of her big fat butt, then dove his little face between her sweaty cheeks.
"Ooohh fuck, Sammy! You really did wanna take a bite, huh?" Cynthia bit her lip and moaned, pushing her ass out toward her grandson's face even more, making her cheeks spread open, giving him easier access. Sam responded by burrowing his face in deeper between her huge squishy buns, pressing his nose against the fabric of her yoga pants where her asshole was. With Sam's nostrils and his Nana's puckered winking anus separated by only a few millimeters of thin stretchy fabric and her minuscule g-string, he sucked in a big hungry breath through his nose, drinking in the intoxicating musky scent of his Nana's sweaty sphincter. "Oh my god, baby! I'm all sweaty from my workout, and you're sniffing my asshole like that? You hungry boy! I hope I'm not too musky back there. Do you actually like the way my butthole smells, little man?"
"Mmmmm, mmphhh mmmmhhhh mmphhhh!" Sam mumbled, his face buried in her fat ass.
Cynthia laughed musically, making her cheeks wobble as they squeezed the sides of Sam's face. "I guess I put some fun ideas in your head this morning when I made out with your butthole, huh? Well, if you love my butt so much, and sniffing my asshole like that, then why don't you get a real close look and whiff."
She reached behind her and gently pushed Sam's face back away from her ass, making him whimper as his nose was pulled from the humid musky valley of her ass cheeks. He was about to protest, but then he saw her hook her fingers under the waistband of her yoga pants and start peeling them down off her booty. Sam's cock strained against his shorts so hard it almost hurt as he watched her pull her skintight leggings down around her thick thighs, showing him her massive, doughy, dimpled ass, utterly bare except for the g-string gobbled up between her cheeks so deep he couldn't even see it. Clearly his Nana was one step ahead of him though, because she pushed her ass out toward him even more, making her cheeks spread open enough that he could see the g-string and the sides of her asshole peeking out from behind it. She hooked two fingers under that thin strip of fabric and pulled it to the side, letting it snap against one of her cheeks to hold it in place.
SSPLLLOORRRTTT!!
Sam's flexing donkey dick spurted a big hot jet of milky precum into his shorts as his Nana revealed to him for the first time her bare, puckered, pulsating asshole. It was darker than the rest of her skin, and not exactly brown, but more of a ruddy tan color. Sam was mesmerized by the way it twitched and winked at him, beads of sweat running down between her cheeks to sluice over the throbbing ring. With her g-string pulled aside like that he also got a clear view of most of her pussy, too. Her chubby puffy lips looked like they were trying to gobble up the crotch of her thong like her ass was gobbling up the g-string, and he could see some of her sweaty pubes peeking out from her hairy mons. With his face only inches away from his Nana's sweaty pussy and asshole, he was panting as the steamy musk wafted over his face. He sucked in a big deep breath through his nose, drinking in her heady scent, and he felt his cock and balls reacting enthusiastically. His heavy equipment had an instinctual sense for breeding, and his Nana was giving off pheromones that basically yelled at his donkey dick that she was prime breeding material.
"You gonna stare all day or did you wanna wanna kiss my ass like I kissed yours?" Cynthia asked, grinning over her shoulder as she watched her grandson drink in the sight of her pucker ring.
Sam responded by diving back between her cheeks and grinding his nose up and down against her sweaty turd cutter, pushing his nostrils right up against the bulging sweat-slick ring and snorting in a big breath through his nose, sucking up plenty of her ass sweat in the process.
"Uuuunnhhhhhhh!" he moaned, his breath hot and steamy against her equally steamy pussy. "Why does your butt smell so good, Nana? It's making my cock jump!" Sam continued huffing her asshole, clapping his hands against her bare cheeks and squeezing them around his face as he snorted and sniffed and sucked up the musky scent of his Nana's sphincter.
"Well honey, you know how dogs wag their tails when they're happy?"
Sam didn't answer for a few moments as he continued huffing her ass musk. Finally he responded "Yeah, Nana. What does that have to do with your butthole smelling so good?"
"Because, baby boy, the reason dogs wag their tail is to waft their ass musk around so other dogs can smell it. It's their way of talking to each other. We're animals too, honey. We may not be dogs, but our bodies talk to each other, and your nose just really likes what my butthole is saying. I'm glad you like her so much. She likes you too, sweetie. You see her blowing kisses at you?" Sam pulled his face back to admire his Nana's butthole again, and she clenched and released her anus a few times right in front of his face, making it wink repeatedly. "Why don't you kiss her back?"
Sam groaned as his cock flexed and spurted another jet of precum into his shorts, then he dove back into her ass once again. This time, instead of pushing his nose against her musky winking butthole, he began planting needy kisses all over it. He kissed her the way she'd kissed his ass and balls that morning, taking his cues from the way she treated his butt. He knew how good it had felt for him to have his asshole kissed like that, so he thought she must feel good in the same way from his kisses. He wasn't just doing it for her, though. Sam was whimpering and moaning softly as he peppered his Nana's most private place with his eager kisses, enjoying the act every bit as much as his Nana had apparently enjoyed doing it to him.
"Ooooohhhh my god, baby!" Cynthia moaned, lowering her head down into the carpet and grinding her ass against Sam's face as he kissed her asshole. "You're making my butthole feel so good! Fuck, you really like kissing my ass, don't you baby? I want you to kiss it like a grownup, little man. I want you to French kiss my butthole."
Sam was so worked up, when she asked him to French kiss her sweaty sphincter, he didn't even hesitate. Whatever timidity he'd felt before about indulging in his Nana's huge wobbly butt had been washed away by the heady intoxicating musk radiating off her twitching anus. So when she asked him to kiss her asshole like a grownup, he just opened his mouth and started lapping his tongue up and down against her pucker ring.
"HNNNNHHHH FUCK!" Cynthia groaned, digging her nails into the carpet and quivering from the intense pleasure of having her grandson lap her incredibly sensitive asshole. "Your tongue feels so fucking GOOD, baby! Goddamn! Do you like it, sweetie? Do you like the way my butthole tastes?"
Sam couldn't make himself pull his mouth off his Nana's butthole, so he just gripped her fat cheeks harder and nodded with his face still buried in her ass, making his tongue slide up and down against her bulging sphincter to provide his answer to her question. Then Cynthia moaned even louder as she felt Sam push his little tongue against the center of her musky pucker ring and start prodding against it, trying to push inside. She bit her lip and relaxed her asshole, then an instant later she felt Sam's eager tongue push up inside her tight anus. Once he'd stuffed his tongue inside her ass, Sam started thrusting it in and out in much the same way she'd done to him that morning. Cynthia's tongue was lolling out of her mouth, her eyes rolled back in her head, panting heavily like a bitch in heat. Sam was snacking on her asshole so fervently and hungrily that she felt like she was gonna-
SSHHPPLLLOOOOSSHHH!!
When Sam felt a torrent of steaming hot liquid start hosing down his neck and chest, he pulled his tongue out of his Nana's asshole and leaned back on his knees. The forcefully gushing clear liquid was squirting out of his Nana's exposed pussy and all over his little body, drenching his clothes in her musky Nana juice. She groaned and shuddered as she kept squirting, quickly waterlogging Sam's shirt and drenching his shorts as her pussy juice flowed down his body. Sam just knelt there panting, his cock getting bathed in Nana squirt through his soaked shorts and undies. The musk radiating off her pussy juice made Sam swoon even more, his cock flexing like it wanted to rip through his shorts and breed the source of that intoxicating fluid. Eventually her squirting slowed and then stopped.
Cynthia panted, trying to catch her breath after cumming so hard. She looked over her shoulder at Sam, kneeling right behind her and panting himself as he stared at her asshole and pussy.
"S-sorry, baby," she panted, "I didn't mean to squirt all over you. Phew! Your tongue just felt so good that you made me cum really hard."
"You… came, Nana?" Sam asked, looking down at his soaked clothes. "Does it feel like when I cum? Does it feel really good?"
"Oh my god, yes, baby! It feels so fucking good! Thank you for making me squirt like that. I hope it's okay that I got you all wet."
"So that means… mommy came when I nutted so hard the rubber flew off…" Sam mumbled to himself, remembering the times his mother had gushed the same musky liquid from between her legs and through her pants. "And when I came in her mouth the first time… she was cumming from me cumming?" He'd always wondered why his mommy peed really hard sometimes while she drained his balls, but he just figured she got really excited and couldn't hold her bladder or something. Now it was clicking into place: his mommy loved his sperm so much that it made her cum just from being near it, or having it blasted all over her face and in her mouth. His Nana also came just from having her butthole French kissed. He knew he was giving both of them pleasure, but discovering that they were having their own orgasms because of him shed a whole new light on those experiences. Suddenly he wanted to make his Nana and mommy cum lots and lots, now that he was aware of how good it really felt for them. "I make them cum like they make me cum," he murmured.
"What's that, honey?" Cynthia asked.
"Sorry, Nana. I was talking to myself. It's okay, I don't mind that you… um… squirted all over me. I actually… kinda like it." Sam blushed, making Cynthia smile lovingly at him.
"Awww, aren't you just the cutest! Well, I'm glad you liked it, sweetie. Now I know I don't need to hold back when I cum. I do tend to gush quite a lot, so thank you for showing me how comfortable you are with it. So, you really liked snacking on my asshole, huh?" she asked, reaching behind her and pulling her ass cheek to the side, making her butthole stretch open a little. Sam groaned and his cock flexed in his pussy-juice-soaked shorts.
"Yes, Nana. I really liked French kissing your butthole. It smells and tastes… really really good."
"Mmmm, that's what I like to hear, baby boy. I'm so glad you like eating out my ass. But you know, honey… there's something else my butthole is really reeeeeally good at. Do you know what that might be, little man?"
Sam froze and felt his heart skip a beat. He'd been so enamored with his Nana's big naked booty in his face he hadn't even thought of anything other than sniffing and kissing and licking her asshole. Staring at her butthole now as she pulled it open a little, the pieces clicked into place. He'd never considered it before, but now it seemed so obvious. Yes, there was something he wanted to do with her butthole, something he suddenly felt consumed with the desire for. But was that really what she meant?
He swallowed hard and shook his head slowly. "N-no, Nana. What… what is it?"
She grinned wickedly at him over her shoulder. "My asshole is really good at milking fat nasty loads of ball jelly from long thick donkey dicks like the one trying to rip your shorts in half right now, baby boy. I told you my ass is yours to use however you want. So, do you wanna pop your fat bloated knob inside my tight little turd cutter and sink as many inches of your meaty monster into my guts as you can? Want me to use my big fat ass and tight hot butthole to milk a few loads from those big heavy balls of yours? You wanna buttfuck me, baby?"
It felt like his Nana had just used bolt cutters to shear clean through the chain restraining that primal animal deep within Sam. He often felt led around by his cock and balls, but he was also a good boy who did his best to suppress his naughty urges. Even with his Nana being so loving and affectionate and generous, he had still been doing his best to restrain himself and not fully give in to the aching needs he felt rise up from his throbbing meat pipe. That restraint snapped when she pulled open her asshole and said such filthy things, inviting him to fuck her up the ass.
Sam leapt to his feet, unbuttoned and unzipped his shorts, and yanked them down along with his underwear. His long, fat, prejizz slathered cock leapt out and slapped between his Nana's fat cheeks with a loud wet PWLARP, splattering precum onto her big juicy cakes and yoga pants. Then he clapped his hands on her huge butt cheeks and squeezed them together around his throbbing cock. He started awkwardly thrusting between her cheeks, hotdogging her fat ass in erratic needy thrusts. Sam had never fucked anything other than his mommy's and Nana's mouths and hands, so he had no experience using his Nana's ass cheeks to give him a buttjob, and as such his humping was desperate and uncoordinated. His huge hooded knob kept emerging from between her huge clap cakes to spurt milky precum all over her back, then disappeared between them again when he pulled back, each thrust sliding the entire length of his cock between her sweaty squishy butt cheeks.
Cynthia grinded her ass against Sam's thrusting member, moaning as she felt his bulging cum tube on the underside of his shaft sawing up and down against her winking asshole. "Mmmmm, such an eager boy! Do you like hotdogging my big fat ass, baby? Do my sweaty cheeks feel good wrapped around your huge salami?"
"Yes, Nana!" Sam moaned, grunting as he thrust between her ass cheeks. "Your butt is so big and squishy and warm! It feels so good having my cock between your cheeks!"
"I bet it does, honey. I can tell how much you like it, but you're teasing your Nana too much! Why don't you go ahead and stuff your cock in here?" With her face pressed into the carpet, Cynthia reached behind her with both hands and gripped her own ass cheeks, pulling them wide open to give Sam better access. Sam stepped back and moaned as he looked down at her winking sphincter, currently pulled open enough that he could see inside it a little. "Here, let's lube up my butthole to make it easier for you to slide in." With one hand still holding her ass open, Cynthia grasped Sam's donkey dick with her other hand and started jacking him off, aiming his big uncircumcised cock head at her exposed asshole. Sam moaned and bucked his hips into her hand, making his cock fire off a few huge splattering jets of precum all over her puckered bulging turd cutter, some of it even shooting inside that tight little hole from where she was holding it open a little, and plenty of it sluicing down her ass crack to run over her exposed pussy, too. "Theeeeere we go," she cooed. "Now my asshole is nice and slippery. Go on, baby boy. Fuck me. Fuck my fat ass." She guided his huge knob to her asshole, then released his cock and used both hands to pull her ass open for him again.
Sam was panting as he slapped his hands back onto his Nana's fat butt cheeks, then he grunted as he pushed forward slowly, his huge knob pressing harder and harder against her sweaty asshole. He bit his lip as he strained, trying to push his cock head inside his Nana's incredibly tight asshole. He was only able to fit an inch of his bloated knob inside her at first, just the very tip. His cock flexed and spurted a big powerful jet of precum that sprayed directly inside her ass, but he was still unable to push his cock head all the way inside her.
"Nana! Your butthole is so tight, I don't know if I can fit!"
"Mmmmm, I know it's tight sweetie, but I promise you can fit. Just think how good it's gonna feel with that tight little hole wrapped around your entire cock!" Sam groaned and his cock fired another spurt of precum up her ass. "Just push as hard as you can, baby boy. Don't you worry about hurting me. Your Nana can take a lot of punishment, so having you force your huge fucking meat pipe up my ass isn't gonna bother me in the slightest. Here, I'll push back against you, and I want you to grip my hips and push with all your might, okay?"
"O-okay, Nana," Sam panted, "If you promise it's not gonna hurt you."
"I promise, dear. Now skewer my fat fucking ass!"
Cynthia arched her back and pushed back against her grandson, making Sam groan with pleasure. At the same time he moved his hands up from her fat ass cheeks to grip the ample swell of her hips, digging his little fingers in as hard as he could. With his Nana pushing her gigantic ass back toward him, and with how tight her cock socket asshole was, his hard throbbing cock shaft was actually bending slightly from the strain of pushing against her butthole without breaching that squeezing ring. Sam gripped her hips until his knuckles were white and his fingers were digging into her skin hard enough to leave red marks, while at the same time he pushed himself forward, actually leaning over her a little to lend his body weight to the task of penetrating his Nana's butthole. Cynthia moaned loudly as Sam's fat engorged knob sank another inch inside her sphincter agonizingly slowly. They both remained like that for a few more moments, both of them panting and sweating from the exertion, until finally…
PWLORP-SSSHPPLUUUURRRRPPPTTT!!
Sam moaned loudly as his huge knob finally popped inside his Nana's asshole and immediately pissed a huge powerful beam of his prenut up into her colon. His entire cock head was inside her now, and the force of him pushing and leaning against her made a few inches of his cock sink into her ass right after his knob. Sam felt like his brain was exploding! He'd never felt anything like this! It was one thing to have his mommy slob his knob like she was sucking on a big meaty lollipop, or to have his Nana milk his schlong with her skilled throat, but this! This was something else entirely. It was the tightest hole imaginable, squeezing around his cock head as he entered her, clenching his shaft as he sank deeper, each twitch gripping his cock so tightly he wondered if it might leave bruises. And that was just her fucking sphincter! Now that he was a few inches deep in her ass, he could feel her hot slippery rectum squeezing and milking his knob and shaft from every direction. Not only that, but it was so fucking hot inside her ass that it felt like a tight fleshy oven in there.
"N-Nana! Y-your butthole f-feels so gooooood!" Sam whined, pushing forward to sink a couple more inches of grandson donkey dick into her tight hot asshole.
"Hnnhhh FUCK! Jesus your cock is so big. You like that, honey? You like my tight little cock-milking asshole? This big butt is yours, Sam. It's yours to use however the fuck you want. And holy fuck does your cock feel good up my ass! So it's not just you that's enjoying this, baby. I fucking love having you stuff my butthole with all that dick! Go on, sink it in deeper. Feed me as much of that huge fucking schlong as you can!"
Though he didn't need the invite or encouragement to continue - it wasn't as if he could stop himself at this point - her invitation only turned him on more, and he moaned as he gripped her hips and squeezed a couple more inches of cock meat inside her, immediately followed by a couple more! His cock was about two thirds of the way inside her and he already felt like he was on the verge of shooting his load! He'd never known that girls liked to get fucked in the butt, and he'd especially never known it was so fucking tight or that it felt so fucking good! His tongue hung out of his mouth, drool dripping down onto his Nana's fat ass while he stared down and watched his cock sink deeper and deeper, her sphincter stretched so wide to wrap around his penetrating shaft.
"It's almost - HNNHH! - all the way in, Nana!"
"Oh fuck yes, baby! I can fucking feel how deep you're going! Keep feeding me inches! Keep stuffing more of that cock up my fucking ass! Oh my fucking god you're so fucking goddamn BIG, baby boy! You have such a huge fucking horse cock! Stretch out my asshole with your big swinging dick! Fucking resize my log cutter with your little league bat of a cock!"
The nasty words flowing from his Nana's mouth only further fanned the flames of the beast inside Sam, and he grit his teeth and pushed forward, sinking more and more inches of his cock inside her precum-lubed asshole, until finally his huge gurgling balls smushed up against his Nana's steaming hot and utterly soaked pussy. Her hot and enveloping asshole was so fucking tight that as he sank the final inches of his girthy throbbing cock inside her it caused his foreskin to unroll from his bloated cock head, fully exposing his sensitive knob to the piping hot and mind-numbingly constricting interior of his Nana's musky butthole.
"HNNNHHHH!" Sam groaned wordlessly, the entire length and girth of his donkey dick buried completely up his Nana's tight milking asshole. It felt like her colon was sucking him off from root to tip, her anus contracting repeatedly around the wrist-thick base of his cock.
"Fucking hell, baby! You're balls deep in my ass! I can feel your big fat nuts pressing against my pussy. Mmmmm, told you I could take it, honey." To further emphasize this, she started grinding her hips around in circles, massaging every bloated throbbing inch of Sam's cock shaft and his huge pulsating knob inside her fucksleeve asshole. "Your cock is so fucking big I swear it feels like you pushed around the bend inside me, dear. I think you fucking straightened out my goddamn colon! Now, I want you to start pushing your cock in and out. You know how I jerk you off with both hands? You just go ahead and pump into my ass like you pump into my hands when I'm jacking that big fat meat staff of yours, okay?"
"Yes, Nana!" Sam moaned, biting his lip as he pulled his hips back a few inches, then plunged his cock all the way inside her ass again. He did this a few times, pulling back about a third of his cock, then hilting himself inside her guts again. Each iteration of this not only sent jiggling ripples through his Nana's huge wobbling ass cheeks, but also caused his foreskin to roll over and unroll from his cock head over and over again with each thrust, sending shockwaves of pleasure ricocheting throughout his entire body and lighting up the pleasure centers in his brain like a chain of fireworks. He'd never had his cock so thoroughly milked in his life and it made his already noisy balls gurgle even louder, then they started slowly pulling up toward his crotch, dragging against his Nana's soaked cunt in the process. "N-Nana! I don't know - UUNNNHH!! - how much I can take! I don't know if I can hold back. I think.. I think I'm gonna nut, Nana!"
"Don't you dare hold back, baby! I want you to fucking hose down my insides with your hot blasting seed! Fucking unload those balls up my ass! That's what my butthole is for, little man. It's a fuckhole for you to fuck your cum loads into. You know how I told you my mouth is your cum dumpster? Well, so is my asshole, but it's even more than just a cum dumpster. My asshole is your cocksleeve sperm tank, perfectly made to milk your entire baby boy donkey dick and coax out the fattest nastiest loads of nut custard your horse balls can brew up! Fucking cake my insides with your thick clotted seed! Fucking pack my guts full of your goddamn ball babies! Fucking nut all in my fat ass!"
"NANAAAAAA!" Sam moaned as he pumped only a third of his cock in and out of his loving grandmother's asshole while she encouraged him with such filthy language. That was it, there was no holding back now. She had purposefully pushed him over the edge and he couldn't have possibly stopped what was coming even if he tried. He dug his fingers into her hips and yanked her back against him, while at the same time he thrust his own hips forward and slammed his entire cock all the way up her fat ass. Cynthia groaned as she felt his enormous throbbing cock flex so hard it felt like he was gonna lift her off the floor with it, and his nuts pulled up tight against his body.
SSSHPPPLLOOOORRRRRPPPPLLLUUUURRRRRRPPTTTTT!!
Deep inside Cynthia's asshole, her hung grandson's dickhole yawned wide open, then began blasting a continuous beam of thick coagulated sperm jelly so hard into her colon that it felt like having a hose stuffed up her ass on full blast. Even with his cock sunk so deep inside her, he was nutting so fucking hard that she could hear the muffled splattering sounds as he gushed his genetic gelatin inside her hot milking colon. The first prolonged jet of that piping hot ball gravy rocketed from his dickhole with so much force that she could feel it swirling and sloshing around in her, surging up her large intestine as his cock pissed the first volley of his sperm into her. When his cock finished gushing that first huge beam of boy sperm inside her, it stopped flexing for just a moment, then flexed again to geyser an even bigger payload of jism into her guts. Then another, another, another.
"Gooood boy!" Cynthia cooed as Sam unloaded his nuts up her ass. "Just like that! See how good that feels? Told ya my asshole would make a good cock-milking cum dump for you. Feels a lot different than my hands or mouth, huh? You can fuck my ass like this every day if you want to, honey. You can blast as many of these fat loads in my butt as you like. So just keep on nutting for Nana!"
Sam couldn't even consciously register what his Nana was saying, but his body fulfilled her request nonetheless, his hips bucking reflexively, his eyes half-lidded and his tongue hanging out of his mouth while his flexing cock gushed more and more of his hot gooey seed deep into her ass. His face was a study in pure unadulterated orgasmic pleasure, all while Cynthia smirked at him between moans. She knew how much men and boys liked her big fat ass, and had obviously seen the way Sam had been staring at it from his first day staying with her, but she took a distinct pleasure in showing him just how fucking mind-blowing it was for her to use that huge juicy booty to milk out so much of his hot gushing sperm. They both remained locked in their sweaty union with Sam's cock flexing inside his Nana's guts over and over again and shooting so much of his cum up her ass that her belly was noticeably bloated with all that kid cum.
After a countless number of eruptions of hot stinky semen into his Nana's asshole, the time between Sam's powerful spurts began to lengthen. His dick was flexing only intermittently now, shooting another rope of nut jelly into Cynthia's already jism-packed bowels with each pulse of his cum cannon of a cock. As he felt his nuts disgorging the last clumpy wads of his load up his Nana's fat ass, Sam slumped forward, making his still hard cock push a little deeper inside her tight hot fucksleeve of a butthole. He lay on his Nana's back, his sweat mixing with her own, panting as his mind thoughtlessly drank in the feeling of his post-orgasmic glow.
While trying to recoup his energy, he felt his Nana's pucker ring begin rhythmically squeezing the base of his cock, her cheeks squeezing together around his hips in sync with her butthole. Sam's incredibly sensitive cock, still riding the diminishing wave of his ejaculation, responded eagerly to her anal massaging, flexing to burp up a few more dense cum nuggets into the deep recesses of her rectum. Sam groaned as she somehow still continued milking pleasure from him using her ass.
"Such a fat nasty load, baby," Cynthia sighed, not giving Sam's overstimulated mind or body even a moment to rest. "Hope you don't mind me trying to squeeze out just a few more drops of boy jelly from your fat donkey dick." Sam whimpered as she continued massaging the base of his cock with her clenching anus, sperm lazily drooling from his dickhole deep inside her ass. "God, feels like you got me fucking pregnant with how much jism you blasted up my ass!" She rubbed her sperm-swollen belly and sighed happily. "Couldn't help but notice though, honey. This big ol' dick of yours? The one you got buried all the way inside my fat ass? Well, he's still hard, little man. Feels like maybe he's not done playing yet, huh? Whadd'ya say, stud? Think he wants to play another game of Pump N' Dump in Nana's butthole?"
Sam actually gasped in surprise as she said this. Did she expect him to even be able to think straight after nutting that hard, let alone have another go at it immediately? Buttfucking was a totally new and brain-exploding sensation that Sam had never even imagined before. He'd loved staring at his mommy's big butt, and had equally enjoyed watching his Nana's butt cheeks jiggling and bouncing and spreading open whenever she'd shown it off for him, but really all he'd thought about when he stared at their butts was how big they were, how much he liked looking at them, and maybe what it would be like to press his face against or between them. He'd had no fucking idea that their buttholes could also be used as yet another way to milk his cock and receive his loads of cum. Now he couldn't help but think about every fat butt he'd ever stared at. His teachers, random ladies at the supermarket, even his sweet and foul-mouthed doctor. Every single one of them had, buried out of sight between their enormous doughy ass cheeks, a tight squeezing butthole leading to a deep piping-hot channel for him to buttfuck his ball babies into.
Despite Sam initially thinking himself incapable of continuing to ball his Nana's asshole, her filthy words coupled with the perverse and quickly flashing thoughts flitting through his mind made his body answer for him. Sam's cock flexed inside Cynthia's rectum and his nuts gurgled loudly.
"Mmmmmm, yeah. That's what I thought." She grinned over her shoulder at him. "Go on, baby. Fuck my ass some more. We got nothin' to do today, so why don't you give your Nana a good workout, hmm? I was gonna do some yoga for a little while to build up a sweat and help work my glutes," she said, squeezing her asshole and cheeks around Sam's member and hips respectively as she mentioned her ass cheeks, "but I think having you work my glutes for me and stretch out my asshole with your fat cock is way more fun. Don't you?"
Sam planted his hands on his Nana's back and pushed himself back into a standing position, then clapped his hands onto her huge bare ass cheeks. He looked down at the junction of his cock and her ass, the stretched out but still incredibly tight ring of her anus wrapped snugly around the base of his thick, veiny, hairless boy cock. She clenched her sphincter a few more times as he watched, eliciting another groan of pleasure from him. His Nana looked so good like this, on the floor, face down ass up, presenting her big wobbly booty to him and encouraging him to fuck another load into it.
"Y-yes, Nana," Sam said breathlessly, feeling like he was living in a dream he never wanted to wake from. "I wanna… I wanna fuck your fat ass more. I wanna buttfuck you all day!"
"That's my baby boy! I knew you had it in you. Fuck me, Sam. Buttfuck me as long and as deep as you want!"
Sam pulled his hips back and watched a few inches of his sperm-slathered cock shaft slide out of his Nana's cum-packed butthole. Her asshole actually followed his cock a little as he pulled back, like a hungry mouth that was trying to keep his fat sausage from pulling all the way out. Sam was happy to feed his Nana's asshole, so he thrust his cock all the way back inside it, sending a rippling shockwave through her ass fat as he bottomed out. He pulled back and then slammed into her again, his big heavy balls slapping against her juicy pussy and making her quiver with pleasure. Sam got a rhythm going, his little hands dug into his Nana's ultra-wide hips, using them as leverage to pump his cock into the tight hot depths of her rectum over and over again. Sam's young mind honed into a state of horny focus on the task of balling his Nana's huge ass while the living room was filled with the wet slapping sounds of their incestuous buttfucking.
PLAP! PLAP! PLAP! PLAP! PLAP!
To date, Sam had experienced having loads milked from his balls by three different women, and every single time had felt fucking amazing. This, though… this was a whole other level of pleasure he'd never thought possible. Sure, his mommy and now his Nana had repeatedly given him some mind-blowing head, and his Nana had even let him use her throat as a fuckhole - for as long as she could handle before passing out on his cock - and yet neither of them quite compared to his Nana's asshole! Even though it was so much tighter than her throat, Sam felt like there was somehow less resistance, that he could just let loose and use her butt however he wanted. When he fucked her throat he was very aware of how much he was stretching her neck, and he even worried about hurting her throat or making her choke or something. After all, with his entire donkey dick stuffed down her esophagus, it wasn't like she could breathe. But with her big, fat, wobbling ass cheeks and her tight, hot, precum-lubed butthole he felt like he didn't have to worry about her at all. Sam's Nana had begged him for this, actively encouraged him to use her huge booty like a cock-milking fucktoy, and his long, thick, vein-wrapped fuckpipe wanted the exact same thing she was begging for. So he didn't worry, he didn't hold back, he just fucked her ass like it was literally made for the sole purpose of him to use however he wanted.
So as he pounded his Nana's massive GILF booty, sending jiggling ripples in waves up her doughy clap cakes each time he bottomed out in her guts, lil Sammy's mind was completely blank except for one singular wordless drive. Though he didn't even know how babies were made, the burning desire he felt, the intense need he experienced, was so base and primal that his young body knew exactly what that drive was: to fucking breed her fat ass!
PLAP! PLAP! PLAP! PLAP! PLAP!
For her part, Cynthia felt a rush of grandmotherly love from having her grandson give in to his animal urges in a way she hadn't seen from him yet. She was so happy to see that her efforts had paid off. She'd taken great care to prove to Sam again and again what her role was: to be his cock-swallowing, cum-chugging, free-use, full-service, fuck-and-suck sperm toilet. When she saw firsthand the way that message had sunk in to his sweet horny mind, and the way his apprehension and timidity had melted away, it made her heart gush with affection.
Her cunt followed suit immediately after.
SSHHPLOOORRSHHH!
Cynthia's eyes rolled back and she groaned loudly as her pussy spasmed and started hosing down Sam's swinging slapping horse nuts with her musky cunt juice. Sam didn't even slow down. In fact, it only made him fuck her ass even harder, causing his big heavy nuts to pummel her squirting pussy even harder, further intensifying her orgasm. Sam felt his Nana's asshole clench around his kid cock as she came her brains out and it drove him over the edge as well. Completely lost in the mindless ecstasy of buttfucking his Nana, he didn't even think to warn her. Instead, he just grit his teeth and sunk his entire cock as deep as he could inside her spasming butthole, coaxing his imminent orgasm to full fruition.
"HNNnnhhhhh!!" was his only warning as he hilted himself in her guts, felt his cock flex and fatten inside her, and then his dickhole began rocketing off jet after jet of scalding hot sperm deep inside his Nana's huge jiggly butt.
FFPPPLLUUUUUUUURRRRPPPPTT!! SSSPPLLUUURRRTT! SPLURT! SPLURT! BLLLOOORRPPPTTT!!
Sam's donkey dick bucked and spurted inside Cynthia's ass, pushing his first cum load even deeper into her guts as the second one erupted in huge gushing blasts. Still riding the wave of her own squirting orgasm, she just shuddered with intense pleasure as her cunt hosed down Sam's tensing balls much the same way his cock was hosing down the inside of her colon. Neither of them said anything, both of them cumming too hard to even form coherent thoughts, let alone words. Instead they communicated through a language of wanton, exclamatory moans, thrusting their sweat-slick bodies against one another in a joint effort to ensure Sam inseminated the hot squeezing channel of his Nana's cocksleeve rectum as thoroughly and completely as possible. Cynthia kept clapping her ass against Sam's pelvis, and Sam kept thrusting his horse cock all the way inside her lovingly accepting asshole with each salvo of sperm rocketing from his dickhole.
Still cumming, Sam began to feel a little light-headed from the exertion of fucking his Nana's ass so hard and deep, and he stumbled back a little. His hard, flexing, sperm-slathered cock snaked out of her quivering asshole, the fat uncircumcised knob popping audibly out of her turd cutter. Sam gripped her huge cheeks to help keep his balance, and with his huge ejaculating fuckpipe resting between his Nana's ass cheeks it just continued shooting ropes all over her. Huge, powerfully erupting jets of hot pearly boy jism blasted all over Cynthia's bare lower back, the back of her tank top, the back of her head, and even the carpet she had her face pressed into while Sam used her massive glutes as a fucktoy. In a state of lustful abandon, Sam didn't even try to aim his cum-blasting donkey dick, but instead just let it shoot wherever, thoroughly plastering his Nana with his thick gooey ball jelly.
It was at that exact moment that Cynthia's gaping, sperm-packed asshole clenched and then started loudly cum-farting all over the underside of Sam's flexing spurting cock
FFPPLAAAAARRRRPPPPPPPTTTT!!
Cynthia gripped the carpet and groaned as her bowels disgorged themselves of huge amounts of her grandson's thick gooey ball gravy. Sam groaned as he felt his Nana's asshole vibrate and then start blasting his own piping hot sperm all over the underside of his cock. With his cum-gushing donkey dick plapped against her cum-gushing asshole, it caused Sam's gooey stinky nut custard to spray everywhere like a nasty sprinkler. The sensation only made him nut harder, and with his thick throbbing cock resting right on her cum-farting asshole, it sent the loads of jism he'd packed up her ass spraying and slinging all over the place around them. It splattered against Sam's stomach, thighs, cock, and balls, it splattered all over his Nana's fat wobbling ass cheeks, and plenty more of it splattered all over their feet and the carpet around them. This only made Sam nut even harder, his jets of jism splattering loudly against the back of his Nana's head, further soaking her hair in his seed.
"S-sorry, b-baby!" Cynthia stammered, "I just-HNNNHHH!!"
FFPPPLLLAAPPPPPRRRAAARRRPPPTTTT!!
"Fuck! You blasted so much of your cum up my ass! I just couldn't hold it in!"
Sam didn't even respond, he just moaned and kept thrusting between her huge cum-covered ass cheeks, continuing to nut all down her back while her asshole continued cum-farting all over his cock.
When their orgasms finally waned, Cynthia's asshole stopped burping up Sam's hot pearly jism around the same time his coinslot dickhole did the same. They both stayed there a few moments, drenched in sweat and each other's incestuous sexual emissions, panting heavily and trying to catch their breath. Cynthia's face was pressed against the floor and she had her well-fucked ass up in the air, with her twitching, stretched out turd cutter lazily drooling Sam's virile seed. Even though she'd loudly cum-farted so many of her grandson's butt-baked ball babies all over his cock, she could feel there was still plenty of it packed inside her guts.
Sam wiped the sweat from his forehead with the back of his hand, then stepped back unceremoniously, letting his still-hard cock slide out from between his Nana's spermy ass cheeks. Cynthia was only dimly aware of him walking away, her half-lidded eyes watching his cum-coated cock swinging between his cute little legs, and his bare butt disappearing into the kitchen. A few moments later he emerged carrying something, though she couldn't make out what it was with her panting face pressed against the floor. Sam walked over to her and she got up on her hands and knees, now able to see he was carrying a big jug of apple juice from the fridge. Sam focused on trying to unscrew the lid, his cute tongue poking out one side of his mouth as he did so. Cynthia grinned as she savored the adorable sight of him carefully focusing on opening the apple juice without spilling it, contrasted so perversely with the sight and smell of his throbbing, uncut, cum-covered cock.
"I got sweaty and thirsty from fucking your butt and cumming so hard in it, Nana," Sam explained. He lifted up the jug of juice and took a half dozen big eager gulps, then lowered it and sighed happily.
"Mmmm, I bet you did, honey. I worked up a big sweat, too! Told ya it was a good workout. You all tuckered out or do you wanna go for round three?" Her asshole let out a soft wet spluttering sound as she pushed out a small cum-fart, then she winked at Sam and blew him a kiss.
Sam smiled sweetly and blushed. "Yeah, Nana. I wanna keep buttfucking you. It feels so good! But, before I do it again, I think I need to… um… well, I gotta pee." Just yesterday he wouldn't have felt bold enough to even allude to something like what he was thinking, but his Nana had done such a good job of helping him relax into using her however he wanted that he felt incredibly comfortable with it now. "So, are you thirsty too, Nana?"
Cynthia grinned wickedly, then got up into a kneeling position, turning to face him. "Oh yes, dear. I'm very thirsty! Seeing you drink that apple juice is making me jealous. Do you have some apple juice for me to drink, too?" She opened her mouth and wagged her tongue up and down right in front of Sam's big, ruddy, foreskin-enshrouded cock head. His dick bobbed in front of her face, as if nodding its approval.
"Mine won't be cold like the kind from the fridge," Sam said with a giggle, then took another big swallow of apple juice.
"Mmmmm, that's quite alright with me, big boy. You know I like it nice and hot and frothy. Feel free to gush as much of your piping hot juice in my mouth and all over my face as you like, cutie pie. Here, let me help start the pump flowing."
Cynthia gently grasped Sam's spermy schlong and aimed his huge hooded knob at her open mouth, then planted her rosy red lips around the bloated tip. She pushed forward and stretched her lips around his fat glans, unrolling his foreskin with her skilled cock-sucking lips as she took more and more of his knob into her mouth, until finally her lips were wrapped around the base of his bare cock head. With her mouth full of her grandson's dick head she started lapping the sensitive underside of it, flicking her tongue over his piss slit over and over again, trying to coax out his stream.
Sam put his hand on his Nana's head, his other hand holding the jug of apple juice by the handle. "Drink it, Nana," he said simply, then relaxed his bladder and began pissing like a race horse in her mouth, instantly bloating her cheeks from the force and volume of his erupting piss. She began swallowing immediately, but his scalding hot pee was blasting so hard into her mouth that plenty of it spurted out the tight seal of her lips before she could get up to pace with her chugging. After that first hiccup, she got into a rhythm of gulping down his geysering urination at a rate that somehow kept up with the firehose-blasting force and volume of her grandson's post-double-nut horse piss. All the while she looked up into his eyes with adoration as she chugged and chugged and chugged.
GULP! ULK! UNK! GLULK!
Sam's eyes were half-lidded and he sighed happily as he fully relaxed into pissing in his Nana's mouth just as hard and urgently as he would into any toilet or urinal. She clearly enjoyed it, loving and supportive Nana that she was, and the sense of relief from peeing so hard and for so long was a pleasure unto itself. Sam smiled down at Cynthia and patted her on the head while she continued gulping down huge swallows of his hot blasting piss.
"You're such a good nana, Nana," Sam said, then grunted as he flexed his pelvic muscles and pissed harder into her mouth, making piss start gushing out of her nose. Even with him ballooning her cheeks full of his hot musky urine, Cynthia practically had hearts in her eyes as she looked up at her perfect grandson. Nothing mattered more to her than giving him as much pleasure and relief and possible. Well, that and also the fact that she was literally addicted to his cum and piss. Such a lovely and degenerate symbiotic relationship. While she mused on this, Sam pulled his still pissing cock head out of her mouth and hosed down her smiling face, aiming his pee stream all over her features, even her open eyes. He aimed it higher and drenched her hair in his loud voluminous piss for a few seconds, before stuffing his knob back in her mouth. She immediately began chugging again.
A couple minutes, a few big swigs of apple juice, and some number of liters of hot boy piss later, Sam had almost drained the entire contents of his bladder into his Nana's slurping swallowing mouth. He gripped her hair a little and bit his lip as he flexed his pelvic floor muscles as hard as he could, pushing out the last big jets of hot boy pee into Cynthia's mouth. She gulped it down and flicked her tongue over his dickhole, slurping up a few hot drops that were still trapped in his urethra. Then she pulled her mouth off his fat, lipstick-smeared cock head, opened her mouth wide to show him she'd swallowed every liter of his powerfully gushing piss he'd fed to her, then sealed it all with the purest display of her appreciation of such a huge liquid meal from her grandson's bladder.
BBBRRRUUUUUUUUUUURRRRPPPPP!!
The sound of Cynthia's perverse, post-piss-chugging belch reverberated off the walls, and a puff of hot pee steam wafted up from her urinal of a mouth.
"Thanks for pissing my belly full, honey. Mmmm, and Mister Donkey Dick here is still hard as fuck, huh?" She tapped her finger against Sam's twitching cock head.
He nodded and grinned. "Uh huh, Nana. Can I fuck your butt some more now?"
"A sweet adorable grandson as perfect as you doesn't even have to ask, dear." Cynthia put her face back down on the floor and arched her back, then shook her huge ass at him, her fat dimpled ass cheeks wobbling invitingly at Sam. To emphasize it, she reached back and slapped her own ass. "Buttfuck me as deep and hard as you want, baby boy."
Sam closed and set down the jug of apple juice on the floor, then stepped behind his Nana, looking down hungrily at her massive bare ass. He put his hands on her lower back, then to her gleeful surprise he actually climbed up on top of her huge rump, digging his feet into either side of her ultra-wide thighs and guiding the bloated head of his huge cock to her winking asshole. When Sam felt his knob rubbing against the hot pulsing bullseye of his Nana's butthole, he grunted and lowered his hips, sinking his fat mushroom tip back where it belonged inside her ass. He used his body weight to push his dick deeper and deeper until his big heavy balls were smushing against his Nana's juicy pussy. Sam squeezed his feet even harder against her chunky thighs and wiggled his cute butt as he got firmly in position.
"Okay, Nana," he said from his position mounted on top of her, his face only foot or so from the back of her head, "Get ready. I'm gonna fuck your butt really hard now."
"Fuck yeah, Sammy. Give it to me, you little stud. Fucking ball my asshOOOOHHH FUCKK!" Cynthia immediately lost her train of thought as Sam gripped her shoulders and started pounding her dump truck of an ass with deep, hard, ass-clapping thrusts. With her face grinding against the carpet, his little fingers digging into her shoulders, and his cute little feet squeezing her thighs together, he had her in a fully submitted position and he was riding her ass like a horny little monkey!
PLAPLAPLAPLAPLAPLAPLAP!!
Sam's cock and balls were a blur as he pistoned his Nana's turd cutter without restraint, plapping her cheeks more intensely than any boy she'd ever had the pleasure of babysitting, and doing it with a cock that rivaled the most hung men she'd ever met. Getting so thoroughly ass fucked was quickly turning her into a blubbering mess, not to mention practically resizing her asshole in the process. She completely lost track of time as Sam mercilessly piped her ass with his glorious third grader donkey dick, so when he started blasting his next huge load of hot stinky jism up her ass, she couldn't tell if it had been a few minutes or an hour of nearly nonstop buttfucking.
SSPPPLLUUUUURRRRRTTTTTTT!
Staying fully hilted inside his Nana's huge sweaty ass, Sam panted and moaned as his cock flexed and spurted over and over again, juicing her guts full of his seed. After he'd blown his full load up her ass, he only paused for a few moments to catch his breath, then went right back to feverishly assfucking her, slamming his cock balls deep in her ass and riding her like an animal for another timeless eternity. Cynthia grinned stupidly, her eyes crossed, tongue hanging out of her mouth as her face was ground into the carpet with each powerful primal thrust of Sam's horse cock into her rectum.
The sperm toilet, butt slut of a grandmother was in a state of pure bliss. No thoughts, no cares, no worries. Nothing but being used as exactly what she wanted to be for her grandson: a fucktoy, a cum dump. With Sam finally giving into his primal urges and treating her as his personal cock-milker, Cynthia could tell it was gonna be a long day. She moaned happily at that thought while Sam pumped her ass full of his cock and worked his way toward blasting his next load up her ass, but most certainly not his last.
A Hard Day's Night
Sam continued buttfucking his Nana all afternoon and into the evening, pausing every few loads to drink more apple juice and let her chug more of his piss. They went from fucking on the living room floor to fucking on the coffee table, the couch, and even on the stairs when at one point Cynthia suggested they continue in her room. They couldn't even make it all the way upstairs to her room before Sam had stripped off her remaining clothes, mounted her fat ass again, and fucked another load into her already sperm-bloated belly from the back end.
Finally they had made it up to her room and Cynthia grinned wickedly as she pushed Sam back onto the bed on his back. She climbed up onto the bed and planted her feet on either side of his hips, her expansive juicy ass facing him, then slowly lowered that big fat butt down onto his throbbing sperm-slathered cock. Sam held the base of his shaft and positioned it so her well-fucked butthole pressed right down onto his cock head. She grunted as she lowered her ass and took his dick inside it. Lowering down onto him fully, she plapped her cheeks onto his pelvis and around his slender thighs, subsuming the lower half of his body with her Nana dumper.
Cynthia clasped her hands around Sam's ankles and started bouncing her huge ass up and down on his donkey dick, making her young fuck-drunk grandson moan mindlessly as she worked on milking out yet another load with her cocksleeve asshole. When he started nutting up her ass once more, she dropped her full ass onto him again and rhythmically grinded her hips in circles, swirling his throbbing spurting schlong around in her sperm-packed guts while he blasted the umpteenth load of cum up her ass. She continued doing this until he'd spurted the last blubbery cords of kid cum into her colon, then she lifted her fat ass off his dick and let it flop wetly onto his stomach.
She slumped down on the bed next to him, laying her arm across his stomach and her face on his chest, both of them panting, sweating, and glowing in post-ass-coital bliss. Cynthia grunted and casually let out a big cum fart all over her own bed, rubbing her bloated sperm-inflated belly while she did so.
"Fuck, baby," she sighed, "You really rode me hard today. I'm gonna be farting your cum loads for days." Right on cue her asshole spluttered as it farted another big spurting jet of Sammy sperm all over her bed.
"Your big fat butt just feels so good to fuck, Nana," Sam said, beaming at her.
She returned his smile. "And your big fat cock feels so good when you stuff it balls deep up my ass, little man."
Sam yawned. "What time is it, Nana? I'm sleepy."
She looked over at the bedside clock. "Oh wow, it's ten o'clock! God, you really have been balling my ass all day, haven't you? Where did the time go?"
"It went up your butt, Nana," Sam said, giggling cutely.
She laughed and shook her head. "It sure did, honey. I'm not surprised you're all tuckered out after blowing so many loads up my ass. You ready to get some sleep after your long hard day of buttfucking?"
Sam yawned again, nodding while he did so. "Yeah, Nana. I think I need to go to bed. You don't gotta tuck me in if you're sleepy, too. I can tuck myself in." He started to get up and she placed her hand gently on his chest, stopping him. He gave her a quizzical look.
"Instead of doing that, why don't you sleep with me tonight, dear?"
"Really? I can sleep in your bed with you?" Sam always loved when his mom would let him sleep with her, and the thought of sleeping in bed with his Nana sounded just as nice to him.
"Sure you can! I'd love for you to sleep with me. It'll be super cozy. Not to mention..." she rolled over onto her other side and arched her back, pushing her fat ass out toward Sam. She looked over her shoulder and smiled at him. "You can even sleep with your cock up my ass all night. I mean, only if you want to."
Sam's eyes grew wide and his cock, which had slowly begun softening, quickly engorged to full hardness again. "Oh wow, Nana. I never even thought of that."
"That's what I'm here for, baby boy! To give you great ideas like that. Go on, stuff your big fat fuckpipe up my butt and let's get some sleep."
Sam put his hand on one of his Nana's fat clap cakes, using his other hand to grasp his thick shaft and guide his throbbing cock head between her sweaty cum-plastered cheeks. He bit his lip as he felt his knob prod against her winking butthole, then he grunted as he thrust forward and sank his dick back into the hot milking sphincter he'd been fucking all day long. He continued feeding her ass inches until he was fully hilted inside it, then he cozied up to her and nuzzled his face into her back. Cynthia reached over and turned off her bedside light, then wiggled her butt and scooted even closer against Sam, slowly and gently grinding her ass against him with his entire kid cock stuffed in her guts.
"Nana?" Sam asked softly.
"What is it, sweetie?"
"You know I shoot cum in my dreams sometimes too, right?"
"I know, honey. You can shoot as many of your wet dreams up my ass as you want."
"And sometimes... um, sometimes I do wet the bed."
"That too, dear."
"What do you mean, Nana?"
"I mean don't worry if you gotta pee in the middle of the night, either. Whether you're asleep or awake, if you need to pee, there's no reason to get up and walk to the bathroom. Not when you've got your whole cock stuffed up my ass." She clenched and released her asshole a few times, making Sam whimper sweetly from having his cock sucked off by her butthole. "You've already pissed in my mouth and all over my face. Why would I mind if you pissed up my ass, too?"
"Hnnhhhh!" Sam moaned at the thought of peeing in his Nana's big fat butt. His cock flexed and spurted a fat jet of precum up her ass.
She cooed happily. "Mmmmm, you like that, huh? I can tell you do, horny boy. Does thinking about peeing in my ass like you peed in my mouth and all over my face make you wanna blow another fat load of hot stinky jism in my butt?"
Sam didn't answer with words. Instead, he grabbed her hip and started rhythmically fucking his cock into her ass in long deep thrusts.
Cynthia's eyes rolled back in her head and she reached behind her to grip Sam's ass cheeks while he stuffed her own cheeks full of his boy dick. "God fucking damn, baby!" she hissed, "You're already so good at fucking Nana's ass, even though you just learned how today!" It was true, and she was shamelessly wet at the thought of it: her eight year old grandson had gone from awkwardly and clumsily thrusting his big meaty schlong into her butt for the first time, to skillfully and animalistically piping her cocksocket asshole like a breeding bull. Cynthia had known that once Sam came around to her way of thinking, and her way of spoiling him like a good Nana should, he would be so much happier for it. And here he was, happily balling her ass without a care in the world, eager to bust a fat nut all inside her sperm-packed guts.
"That's it, baby. Fuck it all out into my ass. It'll help you sleep better if you nut really fucking hard in my butthole. Trust me, dear. Nana knows best."
"Y-yes, Nana!" Sam moaned, and the plapping intensified as he plumbed the depths of her fat ass with the full length and girth of his gradeschooler donkey dick. Cynthia sighed happily and closed her eyes, letting Sam continue balling her ass however he liked. The last thing she heard before drifting off to sleep was Sam grunting and his balls gurgling, then the sounds of muffled spurting and splattering as he blasted another baby up her butt.