He knew he shouldn't be doing it--he wasn't allowed, not to cum, not even to touch his puppy cock without Daddy's permission. He was just so excited though, he couldn't help it! Puppy had been innocently playing in his room, cuddling his Chase plushie as he built up a huge block tower, Paw Patrol playing in the background.

Then his mind started to wander--he started thinking about the german shepherd puppy, how brave and strong he was... and his puppy cock started to harden. Then Chase just so happened to press against the bulge in his diaper as he bent over to reach more blocks... and he couldn't stop himself.

Chase was positioned on the floor, his stuffed bottom sticking into the air, muzzle on the floor, and Puppy gulped as he got into position. He could hear Chase' voice in his head, and just imagined the shepherd really being there---

"C'mon, Pup, you said you were a big boy! Show me what you can do!" Chase spoke with a smile, tail wagging as he shook his behind in the air. Puppy blinked in surprise, unable to hide his blush. "Or would you rather me take charge--"

Puppy scrambled over to Chase, nearly tripping over his paws, and buried his nose into the shepherd's ass. He learned this trick from Daddy and if he liked it, he knew Chase would too. His tongue lapped over the tight hole and Chase moaned, arching his back and leaning into the touch. 

Eagerness driving him, his cock already hard and dripping, he pushed his tongue inside, saliva lubricating the waiting hole. "Come on, Puppy, hop on up~" Puppy did as told, lining himself up, and with one swift thrust, buries his cock into the shepherd's ass. 

"Ooooh yeah.. nnn... Just like that. You c-can move--hurry--" Puppy pulled back and started thrusting with earnest, his knot pressing harder and harder with each thrust. He wanted to cum, oh how he wanted to cum-- "Cum inside of me, Puppy!"

With that, it only took one final thrust to bury his knot into Chase, whimpering loudly, spasming as he began to cum, filling him. Chase followed soon after, cum dribbling onto the grass below him, a white puddle forming at his paws.

Puppy sighed out heavily as the real world reformed around him, his diaper warm and sticky, coated in cum. Chase laid on the floor below him, the same ever smile on his face. "Oh, Chase.." Puppy smiled, reaching over to pet the stuffed toy.

"Looks like someone had fun." Daddy's voice reached his ears and he froze, eyes turning up to the larger wolf. He stood leaning against the door frame, a wicked grin on his face as he held his belt in his paws. Puppy was in troooouuublleee...