No, I bedded his best friend with my boyfriend's knowledge and approval.
Never broken up just convinced her that the three of us could enjoy what they did together as a threesome.
No, but I recently stopped seeing a friend because her husband wanted to fuck me. I figured it was best for everyone just to walk away.
I did this when I was young, in the Marines. I went back to her apartment the next day while she was at work and had sex with her room mate on her bed! I saw no problem with it as it was her "fooling around" with other guys that set the break up fight off. I simply let her know that I could play around, too!