Fucking a tight anus after boring elective classes at school

I'm so sick of this stupid school, because I spend most of my life inside four walls. The old-school professors are always nagging me about my piercings, so the only way to get my mind off this whole routine is to have anal sex with my boyfriend. After boring electives, I immediately run to my boyfriend to suck his penis and get fucked in a luscious jam. When the peak of arousal builds up, my lover switches to my tight anus, which makes me start moaning sweetly. There is a certain charm in adult pranks, after all!