Claire closed her bedroom door and climbed on the bed, calling Duke up with her. The two wrestled and cuddled, with Claire occasionally stroking his protruding pink shaft and cupping his large ball-sack.
"I hope mommy saved me some of your dick like she promised," Claire told him. She could tell she had by Dule's enthusiasm and the way he played with her. His cock was ready for another long fuck.
"Mmmm-mmm," Claire moaned. It was nice being with Duke again. She laid on the bed and spread her legs, letting Duke lick her juicy pussy for a while before reciprocating. She licked and sucked on Duke's large cock, savoring his familiar taste.
"You still have the best tasting doggy-dick, Duke," Claire told him, as she licked the squirting pre-cum from his cock. She then turned around and presented her ass to him.
"'Lick-the-Bitch' for a while, Duke," Claire moaned. She put her face into her pillow and rocked slowly back and forth. Her pussy was dripping.
"Now, 'Lick-the-Bitch's-Ass', Duke," Claire said in hushed tones. Obediently, Duke began to tongue and lap at Claire's sensitive bung-hole. She spread her cheeks to give him better access.
This reminded her of their illicit love-making, late at night, when her mother and father were asleep. Duke and Claire would try to be quiet, with Claire biting her lip and moaning into her pillow, all the while pleading with Duke to not make any noise. The soft sounds of wet, steady, lapping, flesh slapping, and muffled moans and grunts barely escaped the closed confines of her teenage boudoir.
"Oh, yes, Duke," Claire hissed, "Lick that ass. Lick your bitch's ass!"
Duke's long tongue prodded at her hole. Claire felt so relaxed as her dog attacked her tight shitter, loosing it up and allowing him to drive his tongue deeper.
"Fuck, I love it, Duke," Claire said, encouraging him. "I love your hot tongue in my ass!"
Claire released one of her fleshy ass-cheeks and slid her hand towards her sensitive sphincter. Her fingers probed her hole. It was soft and wet. Duke's tongue danced over her fingers as she pressed one into her ass.
"Mmmm-mmm, Duke. Keep doing that. Keep 'Licking-the-Bitch's-Ass!" Being a dedicated dog-trainer, Claire used the opportunity to enforce Duke's education, having his switch between licking her pussy, then licking the 'Bitch's-Ass' Again. Soon, he was effortlessly switching between the two on command.
Focusing on her loosening sphincter, Claire toyed with her hole by using Duke's saliva as lubrication. She used her finger to insert and then open her ass. She tugged and pulled at it repeatedly before slipping in a second finger.
"Oh Duke…," Claire moaned. "No wonder Candy loves getting her ass fucked." She used a finger on her other hand to spread her hole wider. Duke's tongue flickered inside. Once he realized the pathway to her dark treasures was opening wider, he licked with more intensity.
"Oh my god…, oh my god…, oh my god!" Claire babbled. She held her ass open letting Duke drive his tongue deeper than ever. She luxuriated in his tongue-lashing. She knew if she dared to rub her pussy now, she would come immediately.
"Enough, Duke. Stop," Claire said, clamping her ass cheeks together until he withdrew.
Claire felt her soft, spongy, ass-hole with her fingers. She pushed in two of them using Duke's slippery dog-slobber. Her fingers entered easily. She tried a third digit. Just a little stretching, and then she was fucking her ass using fingers on both hands, alternating between them.
Claire made up her mind. She was ready. At least, she hoped she was ready. For some time now, she had been wanting to expand her training regimen, but she wasn't ready. Now, she knew it was time. Her dogs were going to be the best trained furry companions ever!
"Duke!" she hissed, getting his attention. "Wanna fuck, Duke? Wanna 'Fuck-the-Bitch's-Ass?'"
Duke barked, knowing the 'fuck' word and the 'bitch' word. He knew the 'ass' word too, but he had never heard them all put together before.
"Bark!"
"Shhh! Quiet boy!" Claire whispered. "Come on, get up. Get up on my back Duke. It's time to learn a new trick."
Claire slapped her naked ass. Duke recognized the invitation and hopped on his mistress, probing for her pussy with his wet, pointed, dick.
"Stop! Stay!" Claire commanded. She reached behind her and gripped his eager shaft. She slipped his tip along her pussy lips before slowly and deliberately sliding his cock higher, until it was pressing against her soft, fleshy, hole.
Duke's cock squirted pre-cum in and around her hole. She smeared it with the tip of his cock before guiding it to her nether-entrance once again.
"My ass, Duke," Claire said, sliding the tip of his hardening cock into her ass-hole. "Fuck my ass, Duke, get it? Fuck-the-Bitch's-Ass!"
She let go, slightly pushing back against him. His cock slid in another inch.
Duke did 'get it.' He understood perfectly. He had fucked a human's other hole before and liked it. Now, his master-bitch wanted him to fuck her other hole too. Fine with him. He didn't care what hole he fucked. Duke readied himself and pushed his cock into Claire a little more to ready himself. Then, she gripped her around her waist. He took his time. He knew she wouldn't try to get away. These human's always let him successfully breed with them. He felt the tightness enveloping his cock-head. Claire clenched and squeezed him, then relaxed.
Duke drove his long, hard, shaft into the teenager's tight, little, ass-hole and began to fuck.
"Nnnn Ggghhh!" Claire uttered, almost biting her tongue. She had thought she was ready, but now she wasn't so sure. Duke's cock plunged in deep and he was much thicker than her small fingers. "Ahhhhhhh! Oh, fuuu—uuu—uuuck, Duke!"
Her dog's slick cock slid in and out of her tight ass. His cock grew thicker and he drove it in deeper.
"Ah! Ah! Ah!" Claire painted, as sweet pain enveloped her. Her ass was stretched and it tingled with every thrust. She considered asking Duke to slow down - to "Fuck-the-Bitch's-Ass-SLOW!" but decided against it. She wanted it. She wanted to experience it all; to feel his animalistic urges dominating and owning her once-virgin ass. She wanted to let him have his way with her. That was one of her favorite things about fucking dogs; they always fucked like it would be their last copulation ever.
"Oh god! Oh god! Fuck! Oh, fuck!" Claire tried not to shout. She pressed her head into the pillow and bit her lip. She felt so full!