We are a happily married couple in an open relationship where definitely she has the support to be with other men and me, the husband loves to know how things goes or participate sometimes. Currently due to work she is living in another city than me. When she was moving there I posted on reddit an ad searching for the perfect FwB for her, that would understand that our dynamic is not of bull/rough/humiliation but more of the lover approach, where he would be comfortable chatting with me after being with her.
Before this, she did have two steady "lovers" where she would meet like every 40 days or so, just for sex. One for 5 years and other for 3. I am always the one doing the "screening". You can understand more our approach to this in my previous posts and comments here.

Anyaway, I found the perfect person. He is exactly what I thought she would love to be with. And seems I was 100% right. In three months together, she has done things with him that she never wanted nor thought with her previous lovers, like inviting him to sleep over (3 times already). The sex, according to both, is incredible, the kind of lasting 4 hours or so.

My wife knows that one of my all time fantasies would be to spend a weekend somewhere in a trio. She always said that the idea seemed awkward, specially the day after but now with this new lover, she suggested him coming with her to Paris next time she comes and spend the weekend with us.

I am having a mix of excitement and apprehension. We are very open and we talk about everything. We even shared an idea of possible scenarios.

What I would like to ask here is that for people that had this experience, how was it? Did you enjoy? Suggestions? Specially the wives. Reminding that neither of us are into humiliation.

Thank you for any input and suggestion!