WarpMyMind

Anything really. Making it feel as if youre hand is a vagina, making it feel like you are getting a blowjob, handjob from someone else, anything. Titfuck would also be fun. Making it feel as if your penis is 12 inches and seeing it as that for the time you are masturbating.
I think this would be a very successful file.

Discuss.

Another thing I want to add: to percieve your penis growing for a short time, maybe 15 minutes then afterward it will go back to normal.