I don't know if it was the heat from the shower, the sudden shift in blood from having a stretched out asshole, or a mix of the two, but just a few seconds into my rimming, she starts going limp and falls hard on my nose. So I pull out, quickly rinse my dick off, and get on my knees to start rimming her to help her get into it and relax. We decide to do some anal while in the sterile confines of the shower, and after a little of that, she was getting sore. She came through, and we started having sex in the fancy master bedroom shower. I'd been seeing this girl sporadically and decided it'd be fun to have her over to fuck while I was house sitting for my boss.