Originally Posted by lateralus

yes, indeed i have.

The reason i asked was because i always have friends or whatnot coming up to me and saying, "oh, he's so great, we did it like 7 times yesterday, amazing!" when the most amount of times i've done it in one day would be about 3 or 4, and towards the end it just started to hurt. I don't see the attraction, wouldn't it just get worse and worse with each time?