Randomly Targeted Muscle Growth

[michaelv2]

I'll throw this one into the well:

Remember the 1989 Batman movie with the Joker? Remember this part? (from Wikipedia):

Napier, in the meantime, is not dead but horribly disfigured, with white skin, green hair, and a permanent grin. Already erratic, the trauma has apparently driven him completely insane. Calling himself "The Joker", he kills Grissom and usurps his criminal empire. His first scheme is to spread terror in the city by creating hygiene products that can kill by fatal hilarity when used in certain combinations, laced with a deadly chemical known as "Smylex." Following the death of a news anchor on-air, the city becomes paralyzed with fear.

OK, so picture the Joker as a mad scientist at some bodybuilding supplement company, and he develops a serum called "Musclex" that he inserts into various supplements, that when randomly ingested, will cause instant muscle/cock growth and orgasm. It only effects guys who are already working out, because they are the ones taking supplements.

It would be kind of hot to see the anchor, who is of course straight, muscular, good looking and arrogant, suddenly transforms into a muscle freak who is so turned on by his own body that he cums on on TV, thereby ruining his career.

Who else might be suddenly taken by Musclex? Panic grips the city.

[a_lost_prophet]

Not to sure if this is what you're looking for but I remember reading it a while back.

http://eu.nifty.org/nifty/gay/sf-fantasy/enlargement/

[nypup2train]

LOL! You know, michaelv2, you should sue Rockstar Games for stealing the plot for Arkham Asylum from your 2007 post!! Seems like you have a case! (Kidding, of course. But it was prescient!)