"Fuck, how big am I now?" you wonder, as you run to the kitchen. You're getting really horny thanks to all the hormones and your big dick starts to ooze precum like no other, making the front of your boxers dripping wet. You rumage around until you find a ruler, and tear off your boxers. You hold the ruler next to your big cock, and in measures in at 11 inches. You've grown 2 inches in length alone! You balls must have doubled in size, because they look like black baseballs now. Damon comes into the kitchen with a grin on his face, laughing at your predicament. "Shit man, that thing looks ready to explode! Hahaha, how big are you now?" he laughs at you. "Fuck you Damon! I'm 11 fucking inches, and I can't get this fucker down!" you shout at him. His grin slips a moment. "Oh yeah, you better go take care of that" he sneers at you, and you hate it but you know you have no choice. You had made a big mess in the kitchen with your precum, and you run off to your bedroom, ready to jerk off. Once you're gone, Damon's grin disappears. "That fucker's 11 inches long!? Fuck, he's bigger than me. That's not fair, I guess it's time to change the mixture of his drugs around, try to stop him from growing a third leg. Lucky fucker..." Damon begins to mess around with the growth hormones...
Damon comes into your room with food, and he looks in mild shock as he steps into the room. There's cum all over you, and you're panting for air. "hahaha fucker, looks like you got a little caried away. Here, drink up" he says, and offers you a beer. You take a long drink of it, and it tasts funny. Suddenly, your dick feels really weird, and you clutch it. "Damon, what the fuck did you do!?" you shout at him, and you both look down at your dick to see it start to change.