Later that night, Ty came into Dustin's room while everyone was asleep and wished that no one could hear them in Dustin's room. Dustin was sound asleep snoring without a care. Oh his small older foster brother was so cute. He didn't know why but after his transformation, he had a cute little boy look to him. His smooth skin & big eyes were so alluring. He closed the door and tip toed to Dustin's bed. He quietly sat on his bed and began to stroke his face and move some strands of hair out of his face. The boy didn't notice and Ty continue to remove his shirt and caress his body. Ty turn him on his back and looked at amazement at how hot he looked. All that smooth skin, that bare chest, he could almost taste it. He then slowly lower his head down and began to lick his tiny pecs. He used both hands to twist & push his brother's nipples about. His brother was squirming about under making whimpering noise and let out a nice loud moan. Good thing the room was sound proof and wished he was still asleep.
He then began pulling off his brother's pants and underwear and suck on his tiny little dick. Oh yes, his tiny little dick. Vigorously sucked on that dick so much that it became an instant hard 4" inch long dick. It was beautiful, too bad his dick couldn't grow any bigger. Wrong! Ty decide that if he want to fuck his brother he was going to fuck with a nice long slung. So he grabbed his own dick and began stroking it. He instantly got hard and began to see his dick grow and grow into an 18" inch long and 3" inch wide cock. He then flipped onto his stomach made Dustin's asshole wet and slippery to shove into. He then rammed his cock all the way into his ass through his tight insides. It felt so good with his cock inside his brother that it was causing Dustin to cum and whimper in pain and pleasure.
He then thrust in and out of Dustin with full force without caring of what happens to Dustin. He couldn't help it, it was his first time doing it and was with his older foster brother. It felt weird but too good to pass up. Besides, even if he did do it with Dustin, it's not like he loved him, he just wanted to punish the little shit for pissing on him all his life. And what better way of doing that than fucking him and showing him who's boss. He was soon ready to cum and didn't want Dustin to miss this moment and let him wake up.
Dustin then instantly open his eyes and wondered what was going but then instantly felt a strange pleasure inside him that he just couldn't help but scream. Dustin whipped his head up, rolled his eyes up, lull his tongue and drooled from the extreme pleasure. He tried his best to concentrate to make words and cried out, "WHAT'S GOING ON!!??"
Ty went faster and thrust into him harder as he explained, "This is what you get for bullying me all those years and getting away with everything you did because you are their real son."
Dustin would've said something, had he not cum 9 times in during that sentence. He was so entrance with the big cock inside of him that he didn't care what was happening. Ty then ignore his brother's stupid sex addict face and gave him his last few thrust. He then cam inside him and pulled out of his older brother and felt victorious. He looked his now hot and messy brother, who was panting and shaking with pleasure and had a pool of cum leaking out of his ass. The semen that he made mixed with his brother cum as it looked like he cam 100 time in his position.
He didn't like how it was coming out of Dustin and wished the cum would come out of his ass like a fountain. With a snap of his fingers, the cum then instantly shoots out like water from a park statue. Dustin looked from behind and giggled at the fountain of cum. Ty smirked at his smaller brother and asked, "You like that?"
Dustin nodded back with a dumb smile and turn around to face him. Ty then said, "Well good, if you like that try this one out. Suck my dick."
The younger brother pulled out his large dick and wave it in his face. Dustin smiled again at the big cock and said, "Yes big brother."
"Big brother? Huh. I like the sound of that," Ty replied as Dustin tried to suck on his dick. Ty wanted Dustin to put his entire dick into his mouth and decide to give him no gag reflex. Dustin then automatically put the entire dick into mouth rocked himself along the dick. His 'little brother' was now sucking, moaning & giggling with pleasure of wanting his brother's dick. Ty liked how his little brother being an obedient little slut and laid back to watch. He then looked at the rest of his body and realized this body didn't really match his dick and decided to make himself lean, tall and muscular. Not too muscular but just enough for anyone to say he's hot. His body then body began to grow and his legs, arms ad torso became more define and rigid. He then saw what he had become and smirked his now wonderful sweet life. He chuckled and finally relaxed again as he finally cam inside of Dustin and moaned. Dustin felt it screamed as the cum shot out of his ass like a fire hose and splattered all over the wall and headrest.
Ty laughed and pulled out of Dustin as watched him lull in ecstasy. He found it funnier to make all the cum that was surrounding them and flow it back into Dustin's stomach. Dustin's stomach expanded to the size of a beach ball and made Dustin roll onto his side. Dustin rubbed his stomach and giggled, "Ahha... me pregnant..."
Ty was at first shocked but then turned on thinking he could make anyone pregnant. It was so hot and empowering to him. He smirked with pride and laughed at his accomplishment. He didn't need to do much to his new little brother, just fuck him senseless. He then decided to summon a cork out of nowhere and plugged his little brother's butt to make sure no more semen spilled out of him and then laid down on the bed to sleep. He commanded Dustin, "From now on Dustin, you are my sex slave for all of time and will do whatever I say, understood?"
And like that, Dustin replied with foggy eyes, "Yes... master.... ahha!"
Dustin soon fell asleep and wrapped his arms around Ty with such affection. Ty soon fell thinking of all the possible horrible things he could do to his parents tomorrow. Sleeping while smirking.