Brides were serial, not simultaneous. ☺️ First one was ten years, second one seven years and most recent one 30 years and counting. ? I’m optimistic that with this one “Till death do us part” will be literal and not simply notional.
None of my three spouses had sex with anyone else on our wedding nights, but then again we didn’t attend swinger parties in the evening of our nuptials. My first wife did have (non-penetrative) sex with the then husband of my current spouse while I was in the same room playing with my current wife. But that was a one-off event, more than 40 years ago and there was no follow-up with current wife for about a dozen years (during which I had a whole second marriage, the wedding for which my current wife attended. Is this sufficiently complicated?)
My first marriage was casually but consensually non-monogamous. We talked about swinging, but in those days there wasn’t the current social infrastructure to facilitate it. We both thought it might be fun, but our lives were quite busy (she was a medical student) and we weren’t sufficiently committed to the notion to follow through. Early on in our relationship my second wife hinted at interest in swinging, but at that point I didn’t have much interest.
My current wife identifies as bi, but isn’t interested in casual sex and doesn’t believe she could manage a polyamorous lifestyle. (“If I fall in love with someone else and start having sex with them, it’s going to be bad news for you.” Okay, got it!) Thankfully, she is a generous and non-jealous soul and okay with me pursuing my variety of sexual interests, as long as the relationships remain casual. And as long as I always keep her fully informed. Which I do.
So, no, none of my wives had sex with anyone else on our respective wedding nights. But I will note that watching my first wife with current wife’s then husband remains one of the most compelling sexual experiences of my life. My wife is well aware that I would be more than eager to bring a third of either gender — or a couple — into our bed. I most often play with couples, mostly committed ones. I see how avidly the men tend to watch while their women and I engage, and I am just a little jealous. I would love to watch my own wife in that same situation. And she knows if she ever changes her mind I will do whatever I can to facilitate. Even if she wants the privacy of a one-on-one.