A few hours after that, Sam's balls began gurgling once more and he went to find her, calling her name as he walked through the house.
"I'm in here, sweetie!" she said from the bathroom.
Sam walked in to see her on her knees in front of the toilet, scrubbing the inside of it with a toilet brush. Her huge fat ass jutted out behind her and the sight of it made Sam's nuts gurgle loudly.
"Mmmm, sounds like your balls are backed up again, huh?" she asked, grinning.
"Yeah, Nana. Did you want me to wait until you're done?" he asked, not wanting to impose too much.
"Of course not, honey! Come on, I can milk you right here," she said, setting aside the toilet brush and turning to face him, still on her knees.
Sam smiled and walked up to her, and Cynthia responded by positioning her face directly in front of his crotch. Much like the last ball draining, she reached up and undid his shorts, then pulled them down around his ankles, letting his big boy dick jump out and slap her across the face.
"Oh no! I'm sorry, Nana!" Sam gasped, not wanting to hurt her.
She just giggled and shook her head. "Baby, you don't gotta apologize for cock slapping me. You can slap the fuck out of my face with this meat pipe any time you want!" To prove her point, she gripped his donkey dick and started slapping it against her own face, much harder than Sam had inadvertently done a moment ago.
PLAP! PLAP! PLAP! PLAP!
Precum and old sperm jelly splattered on her beautiful face as she beat Sam's throbbing cock against it. "See, baby? I love it."
"Wow, Nana. You really love my cock, huh?"
"I love your big sweaty stinky cock almost as much as I love you, baby boy!"
Then Sam's Nana demonstrated her love by taking his massive schlong in her hands and slowly jerking it in front of her wide open mouth. She extended her tongue and wagged it up and down while she gave him a slow tug job on her knees right next to the toilet. Sam groaned in response and his cock head engorged, then blasted a huge jet of precum into her mouth, splattering all over her tongue. Like the complete sperm slut she was, Cynthia didn't flinch, she just passively let him prenut in her mouth, closing her slut mouth just long enough to swallow it, then opening her mouth and extending her tongue again.
While she jacked him off, she peppered in filthy encouragement to help her grandson unload his hefty nuts. "You got lotsa ball jelly for your Nana, sweetie? Did you brew up a big heavy load of nut custard that you need me to milk out for you? I fucking love it, baby boy. I love how much you fucking shoot! And I love how goddamn thick and hot and stinky your jism is! You wanna shoot it all inside my cum dump mouth and all over my nut rag face? You wanna use Nana as your sperm toilet?"
"Unnnhhh! Nana! You're gonna make me nut so hard!" Sam whined, his little body swaying forward and back in time with his Nana's pumping of his cock with her warm skilled hands.
"Yes, baby! That's it! Fucking nut for Nana! You don't gotta hold back! Fucking piss all that thick nasty ball chowder all in my cum urinal mouth! Fucking bury my face under your stinky wriggling loads!"
"Nnnnnaaannnaaa!!"
SSHHPPPLLUUUURRRRRRRRRTTTTT!! SSPPLUUUURRRPPPPPPTTTTTT!! SSPPLLLUUUUURRRPPPLLLUUUURRRRPPPPTTTT!!
Sam's cock bucked in his Nana's hands and began firing off huge pulsing blasts of steaming hot and thickly coagulated sperm jelly all over her face and in her wide open mouth. Big fat ropes of gooey nut shooting all over the place, criss-crossing over her slut face, piling up on her wagging tongue, burying her eyes and forehead under a fat wriggling layer of ultra-virile boy cum. His Nana kept jacking him off with both hands as he blasted more and more cum, her features becoming progressively less recognizable as they were plastered and coated with the dense clotted produce of his underage balls. Sam shot so hard that plenty of his cum splattered on the bathroom wall, the toilet paper roll, and even the toilet that his Nana was just cleaning. Sam was so lost in orgasmic bliss that he didn't even notice, but even if he had, it was clear that Cynthia didn't give a fuck about trying to keep the bathroom clean, at least not clean of her grandson's ball loads. She tugged off his bucking spurting cock with the dedication of a grandmother whose sole focus was to make her perfect grandson nut as hard as fucking possible.
Eventually the pulsing blasts slowed to intermittent spurts, then finally a slow-flowing river of jism. Cynthia reduced the pressure of her stroking gradually in time with Sam's dissipating orgasm, perfectly attuned to the way a boy nuts to the point that she knew exactly how to milk out as much as possible, to make him feel as much pleasure as she could. She planted her lips around his drooling cock head and lapped her tongue against his coinslot dickhole as she slowly pulled up his shaft, milking out the last fat globs of sperm into her mouth and gulping them down. Then she let go of his cock and let it slap against his thigh, even more sperm built up on it than before.
She turned her face up as if looking into Sam's eyes, but her own eyes were completely fucking buried under an almost inch-thick layer of Sam's genetic jelly. "Thank you for nutting so hard all over my goddamn face and gluing my eyes shut with your fat loads of sperm, honey. Did you need to nut anymore for Nana? Any more big jelly babies in those balls for me?"
Sam stared in horny awe at his Nana, looking up at him while wearing a dense steaming mask of his stinky sperm. Then he felt a different pang in his lower abdomen and winced slightly.
"No, Nana. I think I shot all the jelly I can right now. But… I gotta pee real bad now! Are you gonna be done cleaning the bathroom soon?"
"Oh my! Of course! How could I be so thoughtless? I know after nutting so hard you probably need to take a big hot piss, don't you? Well, I'm not done cleaning the toilet just yet, but I have another toilet you can use."
Without even trying to wipe the jism from her face or eyes, she felt around for his floppy cock and gently grasped it, then lifted his flaccid member and leaned in to suck his spermy cock head into her mouth. Because his dick was soft, she was able to suck more of it into her mouth than usual, and Sam moaned as he watched her lean forward and felt her swallow his cock head into her throat and then keep going! She lowered her head further and further until her nose was pressed against his hairless pubic mound and his entire flaccid cock was completely fucking buried in her throat.
"N-Nana! I really gotta pee so bad! Are you sure about this? I… I can't hold it in much longer!"
Unable to answer with her mouth - because it was stuffed full of flaccid gradeschooler donkey dick - and unable even to answer silently with her eyes - because they were completely paved over with pearly clotted gradeschooler jism - Cynthia answered instead with her hands by gripping Sam's bare ass cheeks and pulling his hips even harder against her face.
"NNNAANNNAA!!" Sam moaned, then the inevitable happened.
PPPPPSSSSSHHHHHHHHHHH!!
Sam's huge floppy cock began blasting his scalding hot piss directly into her throat with the force of a goddamn pressure washer. Unlike his cum loads where at least his Nana had the momentary pause between huge jets, his piss was a constant, geysering affair that gave her no pause whatsoever. Sam's whole body shivered as his bladder completely unloaded into his Nana's cum dumpster throat. She quickly proved to her grandson that she was as good at chugging piss as she was at chugging cum.
GULK! UNK! ULP! GLUK! GULK! GLUNK!
Cynthia's throat undulated rhythmically as she swallowed and swallowed over and over again. With Sam's cock stuffed all the way down her fucking neck, this also meant she was milking his dick with her fucksleeve throat while chugging his hard gushing piss. This wasn't lost on Sam as he felt his cock actually fatten a little in her throat while pissing it full. The sensation of having his cock milked by the entire length of her throat was an incredible type of stimulation that Sam hadn't yet experienced.
Cynthia was an incredibly skilled swallower, but her grandson was such a fucking prodigious pisser that even a seasoned suck slut like her couldn't fully keep up. It wasn't long before piss was rocketing from both her nostrils, but still she kept swallowing, chugging and chugging like an olympic piss swallowing champion. She was less worried about the torrent of piss bloating her belly than she was about Sam's steadily stiffening member. His cock was so goddamn huge that she hadn't even been able to take the full fucking tip down her throat earlier while it was hard. How would she be able to withstand his dick getting rock solid while stuffed all the way down her fucking throat?
Well, only one way to find out.
By the time Sam finished pissing - grunting and flexing his pelvic muscles to gush the last few hot jets into his Nana's throat - his cock was half-hard. He hadn't even thought about the prospect - or the risk - of getting hard in his Nana's throat, but now that he'd finished voiding his bladder he was very aware of how precarious his position was. He pulled his hips back a little, but was immediately met with his Nana's hands clapping against his smooth ass cheeks and pulling his hips against her face again, fully hilting his semi-hard schlong down her throat.
"N-nana! I'm… I'm getting hard again! I gotta pull it out or it'll hurt you!"
She just gurgled around his cock, her eyes still coated in his wriggling ball loads, her fingers massaging his ass cheeks while they held him in place. His cock pulsed in her throat and got a little longer and fatter inside it.
"I'm serious, Nana! It's too big for your throat! I don't want to choke you!"
In response, Cynthia slid one hand between his ass cheeks, her long slender middle finger deftly locating her grandson's pale winking asshole, then she plunged her finger inside it, all the way up to her knuckle.
"NNNANNNNNAAAA!!" Sam moaned, his cock flexing in her throat and immediately going from half-hard to three-quarters erect.
Cynthia just gurgled wetly again around his donkey dick, having to lean forward and tilt her head back a little more to accommodate the growing length and girth of all that kid cock down her throat. She didn't care if she choked out on his dick, all she cared about was showing her grandson what a complete fucking slut she was for him. She started rhythmically fingering his asshole, in and out, while simultaneously she resumed swallowing around his huge member, milking it from root to tip.
Sam tried to protest, but all that came out were strangled gasps and moans as his Nana stimulated his virgin asshole and his huge meat hose at the same time. A few moments later and his cock was fully erect inside his Nana's throat, making her neck bulge obscenely. Sam had never had his cock so deep in anything, and the sensation was sending fireworks of stimulation from his cock head, to the root of his shaft, his balls, his asshole, and up his spine. He shuddered with pleasure, feeling like he was already on the verge of shooting another load from being milked so goddamn thoroughly.
Then Cynthia's finger found Sam's prostate and began grinding against it in time with her rhythmic swallow-sucking.
Sam's mind broke and he didn't even think to warn her. He couldn't think at all. Again the primal force overtook him, the primal need to fucking breed! He gripped her head with both hands, pulled it even harder against his pelvis, and then gave her exactly what she wanted.
PPPPTTHHHHHBLLLUUUUURRRRRRRRRRTTTTTTT!!
These jets of sperm rocketing out of her grandson's dilated dickhole and into her overstuffed throat were even more powerful and prolonged than the load Cynthia had just milked out of his balls. She knew milking his prostate would yield a bigger load of cum, but even still she was very pleasantly surprised by the sheer force and volume of his ejaculation. Not only that, but his fully engorged donkey dick was so goddamn long that she swore it felt like his knob was actually pushed inside her fucking stomach! Her little stud was breeding her fucking belly like it was her mouth's womb, like his cock wanted to shoot its payload of hot nasty sperm as deep inside her as possible to ensure the highest chances of fertilization. The fat log of cock meat bulging her throat was cutting off her airway, so as her baby boy kept nutting and nutting in her belly, she felt her head start swimming and her vision began to fade a little. She was indeed getting choked out on Sam's fuck pipe of a cock, but she was determined to actively milk him for as long as she was conscious. She began massaging his prostate even harder, making him grip her hair so hard it stung as he pissed ever more blasts of kid nut into her stomach.
Sam lost all track of time, and in fact completely lost all sense of place or even self. His entire mind and body were both consumed with the most powerful orgasm he'd experienced so far in his short life. His eyes were glassy, his mouth hanging open, tongue hanging out, drooling as he gripped his Nana's head and fucked into her throat with short shallow thrusts, pulling back only a couple inches before ramming his donkey dick fully down her throat again. He was so lost in his rutting and nutting that he didn't even notice when her finger slowly stopped pushing in and out of his ass, then slid out as her hands limply fell to her sides. He didn't notice more of her body weight leaning against him as she went limp. With her head held in his little hands, he had all the leverage he needed to keep her in position while he balled her neck and pissed sperm in her stomach.
"Nana! Nana! Naaannnnaa!!" Sam moaned as he thrust over and over again, voiding his balls into her belly.
When his orgasm finally began to wane, Sam let go of his Nana's head and stepped back, his slimy sperm-slathered cock snaking out of her throat and mouth until the huge knob finally popped out from between her lips, still spurting jets of hot sperm that splattered into her slack-jawed mouth and all over her already cum-plastered face. Immediately she limply slumped back against the toilet, head back and tits out, Sam's cock spitting a few more jets of piping hot jism onto her low-cut shirt and into her pale cleavage.
"N-Nana?" he asked timidly as he finally noticed her passed out state.
She didn't respond verbally, her throat only making a wet bubbling gurgling sound as cum started pushing up and out of her mouth to flow down either side of her face in twin slowly-oozing rivers of kid nut. Sam felt a wave of panic rising in him. Had he hurt her? Was she okay? Why did she look like she was asleep or something?
A moment later her shoulders rose and she bent forward a little, then hurked up a huge gush of his pearly sperm all over her fat tits and his still semi-hard cock right in front of her.
"HHMMMBLLUUUURRRGGG!!" was the first sound she made while regaining consciousness, heaving up his impossibly thick and voluminous loads all over herself. She burped up a few more big gouts of his fat clotted jism all over herself before panting for a few moments and wiping her mouth with the back of her hand, smearing more sperm on her hand and forearm in the process. "Holy fuck, baby," she gurgled, her voice thick and phlegmy with all that Sam seed still clogging her throat, her eyes and face still completely paved over with his ball gravy, "That was so much fucking cum! Thank you for using my throat as a fucksleeve and pissing all that sperm inside my stomach! I hope it felt good to fill up your Nana's cum dumpster belly. Do you feel better after nutting so hard, my perfect baby boy?" She smiled up at him as if she could see him, even with her eyes glued shut.
"I… uh… yeah, Nana. It felt… really really good. I'm… I don't know, you said I shouldn't say sorry, but… I feel like I hurt you or something," Sam said apprehensively.
"Hmm? Why would you think that, dear?" she asked sweetly, as if all of this were perfectly normal and pedestrian.
"Um, I mean… cause you like… fell asleep, I guess. And you looked really… out of it," Sam said, not sure how to explain, having never seen someone actually pass out, let alone throatfucking someone into that state.
"Oh, you mean because you throated me to sleep? Sweetie, that's perfectly alright! I told you, I'm your nut rag, your cum dumpster, your cock-milking sperm toilet. You can throatfuck me until I pass out whenever you like. No need to stop just because I'm unconscious, you can just keep right on balling my mouth and blasting as many loads in my passed out belly as you like. All that matters is that those big fat nuts of yours get drained as much and as often as you like, okay?" She smiled up at him, still wearing that full cum mask he gave her.
"I… wow, Nana. Thank you. You're so nice to me," Sam said, not even aware just how fucked up this all was. All he knew was his Nana loved him very much and was basically offering herself up to him to help him with his medical condition. Gosh, she must really care about him lots and lots!
"You're more than welcome, little man! Now, if it's alright with you, I'm gonna gobble up all this hot stinky sperm you blasted all over my face. Please let me know if you need to shoot another fat load, alright?" Without waiting for him to answer, she began shoveling big handfuls of his clumpy pearly jism into her wide open mouth, moaning as it piled up on her tongue in big gelatinous heaps, chewing it noisily, and gulping it down with big eager swallows.
Sam's cock pulsed and drooled more sperm onto the bathroom floor. "Oh, I don't mind if you, um, gobble up my stinky sperm, Nana. I'm glad you like it so much!" He said, feeling more comfortable with this new dynamic after having his nuts drained a few times today.
"Uhr doo lurv irt, burby!" she mumbled through a big mouthful of his ball babies, "Urts durlurshush!"
Sam pulled up his shorts and undies and again stuffed his big sperm-covered cock into those already jizz-soaked briefs. He looked down at his Nana continuing to eat all the sperm he'd blasted on her face, then start scooping up big handfuls of the stuff off her tits to stuff in her mouth. He smiled at how loving she was, how affectionate, how much she was invested in his care. His heart swelled with love for his Nana, and he turned and walked out as she leaned over and began sucking his sperm off the bathroom floor tiles.
After his ball draining in the bathroom, Sam's Nana made dinner for both of them and he was actually a little surprised that she sat down and ate the meal with him. He'd half expected her to crawl under the table and suck him off again. Instead, they shared a nice meal and chatted casually about the video games he liked and his favorite cartoons. This would have been a fairly standard domestic scene if it weren't for the fact that Cynthia hadn't bothered to actually clean any of Sam's thick gelatinous sperm loads off her face or tits. Sure, she'd gathered as much as she could by hand to stuff in her cheeks and swallow down, but she hadn't actually washed up or even changed clothes. She positively reeked of his semen, but she seemed perfectly alright with it, just as she seemed content with the fat ropes of cum still clinging to her hair and the off-white stains on her clothes.
Sam was learning more and more that she truly meant what she said about loving his unwashed cock, his hot gushing piss, and of course his huge stinky loads of ball jelly. He felt more at ease than he had since this whole ordeal with his cock and balls had started. Maybe he really could fully relax into this and not have to worry about his massive cock and constantly gurgling balls. Not when his Nana was there to help him.
Once he'd finished eating, Sam yawned, covering his mouth to be polite.
"You all tuckered out, honey?" his Nana asked as she cleared the table.
"Yeah, Nana. I'm pretty tired."
"I bet you are! Blasting so many gigantic loads of cum is bound to make you sleepy. Here, I'm gonna clean up the kitchen real quick, and while I'm doing that why don't you go upstairs and get in bed, and I'll be up in a minute to tuck you in, mmk?"
Sam smiled, then nodded. "Yeah, Nana."
"Good boy. Be up in a jiffy."
Sam went upstairs and undressed, taking off his shorts and shirt, then climbed into bed, sighing contentedly as he slid under the cool sheets. His eyes were already heavy and he started to drift off to sleep almost immediately.
He jerked awake as he heard the door open and turned to see his Nana walking in.
"Oh, sorry dear!" she said, "Didn't meant to give you a start!"
Sam's eyes grew wide as he saw what she was wearing. His Nana, who had hips wide enough to drag against the doorframe on her way into his room, ass cheeks massive enough to swallow him up, and huge heavy breasts even larger than his own mother's, was wearing a see-through negligee that clearly displayed her skimpy panties and the lacy bra somehow containing her fat grand-mommy milkers.
Sam's cock pulsed in his briefs.
"Time to tuck you in, baby," she said, sauntering over to his bedside. When she reached him, she leaned over him, her ample breasts hanging down and giving him a clear view into her deep cleavage, and she peeled his sheets and covers down to his thighs, revealing his overstuffed briefs. They were still damp with his cum, and there was plenty of old dried wads on them as well, not to mention all the cock and ball sweat they were saturated with. Because it was his only pair of undies, Sam had been wearing them for both days of his stay with his Nana.
Sam watched as she leaned her face down and pushed it right up against his bulging musky package, her nose pushing between the side of his folded over shaft and one of his huge nuts, pushing the fabric of his briefs into that crevice. She sucked in a big audible breath through her nose, the air cool against Sam's equipment, then she let out a sultry moan, her breath now hot against his package.
"Hnnnhhh, FUCK baby! Mmmmm, your big boy is smelling nastier and nastier each day." She turned her head to smile at him, and winked. "Just how Nana likes it."
Sam blushed, enjoying the attention. His "big boy" - as she called it - was responding to that attention by growing larger in his already strained undies.
"Looks like he wants out, huh? Time for your night night ball draining, sweetie."
Cynthia deftly pulled the waistband of Sam's briefs down over his massive cock, letting it flop out onto his little stomach with a wet PLAP!, and pulled his big hefty nuts out over his undies to help hold them in place. Then she got on her knees next to his bed, grasped his slimy cock with both hands, and guided the huge uncut head to her mouth. She wrapped her lips around that hooded knob and started slowly and rhythmically slurping on it.
Slurp, slup, sluk, slulk, slurk
Sam could tell this was different than the other blowjobs she'd given him that day. It was slower and more tender. It was like she was giving him a special night time suck job. He placed one hand on her head as she sucked him off, eliciting a contented humming sound from her that sent subtle vibrations through his steadily engorging cock head. In no time he was at full mast and she was repeatedly bobbing her head, giving his cock head an incredibly stimulating tongue bath, drool lazily dripping from his shaft as she sucked him off.
"N-Nana, it's… it's so good when you suck me like that," Sam said breathlessly. She just hummed happily again, making Sam moan. He bit his lip and started gently thrusting into her mouth. Not the needy animalistic thrusting he'd treated her throat to in the bathroom earlier, but the small thrusts of a boy who was close to drifting off to sleep. His Nana's sucking was so good that he felt his nuts tightening in no time. She seemed to notice because she began applying a little more pressure with her lips and tongue, a little more suction with her cum dumpster mouth. Sam was on the precipice of shooting another load at any moment.
He looked down at her and blushed. "Nana, I… I love you. I love you bunches and bunches."
Her eyes met his and they were full of love. His cock flexed in her mouth.
FFFPPLOOOOORRRRRPPPPTTTTT!!
Sam bit his lip and whimpered, bucking his hips as he fired off jet after jet of piping hot ball gravy into his Nana's sucking mouth. True to form, she didn't flinch or skip a beat, she just kept tongue-basting his pulsating cock head and gulping down huge swallows of his thick blubbery jism. His nuts hitched, his shaft flexed, and his already massive cock head engorged with each gushing blast of kid nut into her mouth. Being the loving Nana she was, she didn't waste a drop of his precious jelly.
Finally after a couple dozen huge volleys of Sammy sperm into her cum dump of a mouth, the jets began to wane until his wide dickhole was only slowly oozing the last dregs of his final load of the day. Cynthia lovingly slurped on his hooded knob until the last thick wad of his cum extruded from his piss slit. She gulped down the last huge mouthful, then lovingly tucked his big stinky cock and thoroughly milked balls back into his sweaty spermy musky underwear. She smiled as she thought about how they would be marinating in that delicious musk all night.
She pulled Sam's sheets and covers back up to his shoulders, lovingly tucking them in around him. When she looked at his adorable face she saw he was already fast asleep, eyes closed and mouth open just a little. Her heart swelled with love for her grandson and she placed a soft kiss on his forehead.
"Night night, baby boy," she whispered, not wanting to wake him, "Sweet dreams."
She tiptoed out of his room and quietly closed the door behind her. Once back to her room she furiously masturbated on her bed, lying on her back with her thick thighs spread wide open, and brought herself to a few convulsing squirting orgasms, gushing her juices all over her own bed. Once she was satisfied, she pulled up her own covers and drifted off to sleep, not at all concerned about how soaked her sheets were with her own musky fluids.