Help find a manga please

There's a scene. Where the seme the uke from the front and back and the uke peed (??) And. They kind of broke up and the seme went to apologize to him in the library and explained it and the uke was there with classmates and he got embarrassed. Also their 1st time together the seme did whatever he wanted cuz he thought the uke was used to it since he prepared himself .Also the seme's friends asked if they could watch them do it and that's where the uke had a breakdown. Sorry this is so long. I'd really appreciate it if someone could help me find it