Threesome advice

redwin

My boyfriend and I recently decided to open our relationship to a threesome, we’ve been together going on 4 years now and agreed that we trust each other enough to do this. We just don’t know who to ask, how to ask, what to ask. Anything. We want a girl who isn’t in our friend group so that way it’s not awkward after or anything but we also want someone in our friend group whom we trust and I feel comfortable with.

He also fantasizes about me having sex with another guy while he watches, not joins in or anything. And he wants me to do it. I think I would be comfortable(provided I feel comfortable with the person) but I’m just worried that what if I have sex with someone in front of him and then he likes it while he’s turned on and after he gets mad at me for agreeing?