Looking for old story: wife goes to stronger man

I read it probably over 10 years ago, when the Internet used to be awesome.

A man's wife (and her friend plus friend's husband) ambush him with a ballbusting match - in the ruse of dinner party - winner takes the wife (sexually). It's never in question who will win, just how bad he will be hurt and humiliated.


Fun times. I mean I had fun, the character in the story probably not.

I hope someone knows. I couldn't find it. Thanks.