The boy was slim and had a very small build, he had clearly never been to the gym before. His clothes were already very tight, almost skin tight. As the boy was sucking away at Hank's enormous member, Hank shot off his whole load into the boy's mouth, it had to be at least 6 gallons. The boy was overwhelmed by the cum but he couldn't let go. All of a sudden, the boy looked to his side and noticed something... His biceps started to grow, his pecs inflating, his abs tightening and his lets blowing up like balloons. He instantly knew it was the cum that was causing this growth. He couldn't let go of Hank's member, he noticed the enormous veins popping out on his biceps, he was absolutely ripped! He couldn't believe his eyes. The longer he held onto Hank's member, the faster he grew. The boy's muscles kept on growing and his shirt was so tight, it felt like he was suffocating. His cock also began to grow... He noticed the bulge in his pants, getting larger.. and larger... His balls inflated as if they were filling up with the cum he was swallowing. The boy felt like he was going to explode his muscles were so big. He finally let go of Hank's member and he cried out in pleasure, although he didn't stop growing. His pecs were now the twice as big as Hank's and his shirt had ripped to shreds. His cock continued to grow, he saw precum leaking out into his pants, and his pants gave way, he was left there simply with an enormous cock in his underpants that were stretched all the way, it looked like there was a huge vein covered, muscle throbbing cock in his underpants. Eventually in one massive cry, he sprayed his load everywhere, there was too much pleasure to handle. His muscles just kept on growing and growing, Hank couldn't believe his eyes as he himself hadn't even grown that big. This once small, 16 year old teenager had now being an enormous muscle covered behemoth. Hank could see his enormous veins pulsing, throbbing, growing. Hank couldn't stand it! Immediately Hank got up behind the boy and ripped his behind right open with his enormous member! The boy cried out in both pain, and pleasure. The pleasure experienced by Hank caused another growth, his cock began to grow again. It was then, that both hank and the boy knew, they were both in trouble. Hank's cock was so huge, it was locked in the boy's ass and cum was spraying at a faster rate than before! The boy had no choice but to just take it, but then there was the issue that he started growing again.
At this time they were both just moaning in pleasure, cumming wherever their enormous cocks led them, and they continued to grow...