--Disclaimer---
This story is entirely fictional and doesn't/shouldn't represent any real life situations. It is strictly for entertainment purposes

Corey crept into his little brother's room just after midnight. The 16 year old black lab was eager to help as always, but needed to be sure not to wake their parents. He smiled looking down at the sleeping 11 year old. Curled up in his race car sheets, Stevey looked so cute and helpless. That is all except for one part. There was an obvious tent in the sheets where the pup's little dick was twitching in his sleep. Getting on his knees next to the bed, Corey gently peeled the sheets off of him. 

It all started 3 months earlier when he overhead Stevey and their parents. Seems he had his first wet dream, and they were giving him “the talk.” He was super embarrassed and came running to Corey to vent and ask for advice. Though the teen was hesitant at first, he promised to teach Stevey how to avoid those surprises at night. Of course simply learning to rub himself wasn't enough for the curious pup nor the horny teen, and it wasn't long before Corey told him about all kinds of ways boys can have fun together. 

So there the teen was, crouched down at Stevey's bedside, and sliding the pajamas down revealing the pup's twitching erection. The pup stirred a little and opened his eyes. Seeing his big brother licking his lips, Stevey giggled softly. He knew exactly why Corey was there. This was their routine after all. Every other night after their parents were asleep, Corey snuck into Stevey's room to suck his cute little cock. It was his way of helping to keep Stevey's wet dreams from coming back. 
Not wasting any precious time, he winked at Stevey then leaned down and licked up from the pup's sheath to the tip of his little red rocket. Stevey giggled, feeling the tickling pleasure of his big brother's wide flat tongue. Corey ran his tongue up and down getting a good taste of the pup's deliciously youthful cock. He was still pretty small despite being able to cum now. His little member twitched on Corey tongue, leaking a few short streams of pre. 

Corey, despite having taken care of himself in the shower much earlier that night, still found himself getting hard and drippy as well. Wearing only his boxers, he reached down to free his teenage cock through the fly, letting it throb and drip onto the rug. By now he had dropped his muzzle onto Stevey's cock was slurping up and down. The pup covered his mouth with both paws to muffle his growing moans. His legs wriggled as Corey brought him closer and closer to climax with every slurp. The teen's tongue was making circles around the pup's tip sending jolts of electric pleasure through his tiny body. He knew just how his little brother liked it. Every swirl followed by a suck as he gulped down every drop of that sweet puppy precum. 

After a few short minutes Corey felt the pup whimper indicating he was close. Reaching up he freed Stevey's growing knot from his sheath and gently squeezed it. That squeeze was his way of telling his little brother he was ready too. Yelping through his paws, Stevey's back arched and Corey closed his eyes as the pup exploded in his mouth. Despite his age and size, the pup produced enough cum to rival any adult. Corey gulped and gulped swallowing 3 big mouthfuls of his little brother's hot cum. He was always impressed by just how much built up from just two days. Even at 16, he didn't squirt that much that often. The teen's cock throbbed as he sucked the last of the pup's cum from the tap. Finally getting a breath he sat back on his heels and smiled. 

Stevey yawned and thanked him as always. Now completely spent he quickly started drifting off to sleep. Corey helped him pull his pajamas back on, though it would be several more minutes before his little cock fell flaccid again. Tucking him back in, Corey kissed Stevey's forehead and stood up. Before leaving the room, the teen pulled his boxers off freeing his throbbing cock completely. Sneaking back to his room completely naked felt so risky, but he loved the thrill of it. It was the same as blowing his little brother. Just knowing their parents could catch him got him even hornier. 

Laying on his bed over the covers Corey quickly finished himself off. Curling himself forward he opened his mouth wide. With his free paw, he squeezed beneath his knot and shot several thick streams directly into his mouth. His own cum pooling in his throat, Corey squeezed the last bit out and gulped down. Falling back exhausted, he chuckled as he realized his stomach was now full of both his cum and his little brother's too. Slipping himself under the covers, the teen was thankful he could get such a delicious midnight snack whenever he wanted.