Cancer of the dick.
Development is due to too much masterbation while watching
hentai.
Involves several pros and cons.
Pros:
Your dick gets bigger due to uncontrolled growth of the dick cells, (And
bitches love big dicks).
You don't have to worry about being raped by a fat Maori whore because it's contageous.
Cons:
Your dick won't look like a dick no more, (although it gets bigger).
Your dick will fall off after few years of cancer development, and a dickless man will
die.