I'm 29 married and bisexual. My husband is open about this and accepts me and respects my preferences (which is rare in Lebanon). Recently a friend of mine (female) suggested if I do a threesome with my husband and her. My husband didn't mind the idea but wants me and him to set rules (who participates with whom, what limits etc...) I've heard many positive and negative stories about threesomes. What do you think I should do?