I made a bet with my ex husband before I was even considering divorcing him that he couldn't find someone younger than me who was willing to have sex with him (at the time I was 24, now 36.) The terms were that if he couldn't he had to do more of the housework since we were both working but I was still doing most of it. If he did manage to find someone I would have sex with him he could fuck me any way he liked any time he liked for the rest of his life or mine (I hate anal and giving blowjobs.)

We got it in writing and on an audio recording, while my sister watched. I was SO SURE his flabby ass couldn't do it, otherwise I wouldn't have agreed to so much. Well the very next day I come home to find some skinny 19 year old sucking his cock (he even had her keep her license handy.)

We got divorced about 7 years ago over something unrelated, but he still gets to fuck me however/whenever he wants (whenever he feels like making the drive to me, anyway.) I don't know if he's lying, but my lawyer tells me it does count as a contract and is still valid.