The boy slowly opened the door to the bathroom and looked around, seeing if there was anyone in there. Hearing and seeing nothing, he quickly walked in and yanked down his shorts, and he laid eyes on his fourteen-inch cock for the first time. It throbbed and twitched, causing his proportionally-sized nuts to bounce around. As he panicked internally and tried to figure out what to do, Dustin walked in.
He pretended not to notice the young teen and his obscene endowment and walked right to a urinal. He stared at the boy out of the corner of his eye and waited for the fun to start again.
Sure enough, the boy's cock began to grow once more. He moaned loudly as his shaft extended and his balls plumped up to the size of large grapefruits. His head was the size of a softball and was leaking precum. Unable to help himself, the boy started vigorously stroking his giant dick, moaning even louder. After only a few minutes, he shot a massive load of cum across the bathroom. Finally Dustin stopped staring and left the bathroom, leaving the boy dazed and satisfied on the bathroom floor.