This happened a couple of years ago.
Cousin was having his bachelors party, but the guys got stuck with the kids so that the ladies could go crazy with their bachelorette party. So it was just pizza and Marvel movie marathon for the party.
Next day I get a message saying that there will be a “real” bachelor party tonight to make up for getting stuck babysitting kids. This turns into a typical drink fest, gambling, gf/wife ranting, etc. Cousins friend than announces that he hired a stripper just as the doorbell rang. Turns out the stripper was my cousins ex gf of 3 years.
So she starts doing her stripper routine, which was not that great imo (clearly not a professional) She spends most of the time dancing for my cousin which I could tell was a clear “bet you wish you kept me.” So she’s finally done with her “performance” and goes to leave but offers a more “private performance” for the groom. And since the groom had a few to many shots he agrees and both head to the bathroom. All the while all the guys are hooting them on.
4 years later I see his ex at the grocery store with a little girl that looked to be 3 or 4 years old. I just turn around to avoid her seeing me, head to the cashier, grabbed my stuff, and just ran. I never dare tell him since he and his wife are in a happy relationship and trying to have a child together.