This is a fun idea.
I like the above wager, so I think I'll copy that a bit for my first attempt.
Loss = +1 week of denial
Win = +1 orgasm
Spoiler:
25 minutes, 11 seconds.
That was hard! 3 losses and 5 wins so far, so I guess I didn't do so bad.
Loved this challenge! The music was great too. xD