Unicornrhein's Favorite

Anyone know of a story or two where the seme knots inside of the uke during s*x? In the omegaverse, most times the alpha can knot but I don’t think I’ve read one where it actually happens. You don’t need to give me just omegaverse ones though, I’ll take any type of story where knotthing happens, I’m just curious what it would be like.

Is there any yaoi manga where uke pisses himself while doing it. I know, I know, shhh. Don't judge. I vaguely remember this story where the two of them were doing it in the bathroom then suddenly uke wanted to pee, so he literally peed while something was inside him. (*´∇｀*)