been on both sides of this one. so I get it. in my case girl did not tell me she had a man(husband). I did not know the guy but... I did not ask any questions either to find out if the girl was being straight with me. It was a super fun time. When I found out, it took a few days to sink into me what I had done. not good.... the girl really singled me out of a good sized social group and she was a newcomer. he wanted to find me... she never told him how to find me. as fun as it was at the time, i really wish I had not but it taught me to understand that even a clean high moral guy (haha but really..) like me can do stuff. had the guy found me, telling him I did not know probably would not have been well received.
on the receiving side of this, if I would catch a guy (even like I was, sort of innocent) it would not go well for them. you just can't know who and what your dealing with. you can be alpha or super alpha and really fit and every title of manly. If a pissed husband want to get you, you will have a problem. especially if he doesn't care what happens to him as a result. If you keep doing it, you will eventually meet one of these guys. graveyard is full of alpha guys.
LOTS of girls with less risk. I like the comment of what goes around comes around. Karma is a mean spirited btch. Now if the guy tells you it is ok with him then whatever.. but if not, doing this is like kicking him in the nuts over and over. You would not do that to someone you know probably. Also you would not do it to someone you don't know... just for the fun of it.