Me (M28) and my wife (f29) finally got past the talking stage of this and jumped in last month and tried an MMF threesome and it was a blast for both of us. The guy we had over seemed to mesh with us both really well and seemed very respectful of our boundaries. We reached out since he said that he'd definitely want to come see us again and the conversation went south as he said he'd only come back if he could go raw and finish inside her. Condoms were a hard rule for us and we made that clear from the start since she's not on birth control. We said that wouldn't be possible and now he's blocked us. my wife was already apprehensive about trying this in the first place but decided it was worth a go since this scenario was always a fantasy of hers. She said having him come over once and then ghosting us reminded her of what it used to be like when she was dating before me and all the scummy guys she had to deal with and she didn't like the way it made her feel. We've both agreed that this is on hold and I think that I'll let her bring it up about trying again since she knows I'm still ok with continuing but for her piece of mind this is going to the back burner.