Wife's previous threesome

Have loved this sub for a while but wanted to finally contribute. My wife has a few hotpast stories i love, but i wanted to see if anyone else wanted to share their favorite.

My favorite: wife had a mff threesome before we got together with a close female friend (still friends today) and the friends boyfriend. Info has trickled out over the years, but involved both of them on their backs with the friend's boyfriend putting it in them back and forth. Only problem is she claims not to remember where he came 😆 where do you think he finished?