A penis growth formula

K-T was feeling weird and when his mind finally cleared he could feel something warm against him calves. He swatted it away and wondered how he could feel being swatted.

"What did you do to me?" he asked his sister.

"Well, the president of the company and most of the executives are a bunch of old, fat, small dicked losers and I'm pretty sure this exact formula was about 80% of their reasons to fund my research. Most of the dick growth **** on the market are scams and kind of surgery that can technically work is really painful and has lots of side effects." She explained. He could see use a handheld scanner on the thing between his legs and when he looked down he realized that it was his cock. The thing was ridiculous, more than two feet in length and as thick as his forearm, with a head the size of his closed fist. His balls too had grown to the size of tennis balls.

"Are you insane? My dick was already huge! No one wants a dick this size! It's more than useless. You'd kill a girl if you ever tried to have sex with her."

"Like I said, it's more of a proof of concept. I know you are not the ideal subject. As soon as the testing is finished I'll develop a formula to revert the effects of it." She explained.

"Wait, you can't revert it now?"

"No, I just finished this formula, I needed to test the effects before continuing. If I did the anti serum without seeing the effects I could have left you with a one inch nub by accident."

"Emily, I have a date tomorrow. I can't go like that. How would I ever wear clothes? Let alone a swimsuit. You have to rush that anti serum before tomorrow."

"There's something you need to know first, because it won't be easy. First, I can't guarantee how well the anti serum will work if I rush it. Second, one of the side effects of this serum makes it so that you can't use it indefinitely. If I change you back before tomorrow instead of doing the necessary tests, I'll have to give you the serum again the next day, but then there will be a 30% chance that the anti serum won't work at all after that and 95% chance of it no longer working after the 4th shot. So I'll do it if you ask, but be careful what you ask for. " She warned him.