When life gives you lemons, make lemonade . . . Do I hear threes*me?

Wifeswap.

Plot twist

More like foursome..

More like threesome. Black mail FTW. I'm a terrible person!

Well, at least you could say that it's not because of you as a person, but because of your gender :-) Which in my opinion isn't that bad. Would be worse if it was with your brother.

Maybe she just wanted to experiment?

I think cheating is cheating even if you're cheating with the same sex.