Coming home to a surprise

I got to the door thinking about what homework I was going to start with, and getting my keys out of my bag. I twist the key in the lock and open the door to find a guy I've seen around campus, naked sitting on my couch and my roommate has his coco in her mouth.
So naturally all thoughts of homework disappeared. I put my bags down after locking the door behind me. Walked to the fridge, and got myself some water. I said hello to to the man who has been watching me since I got home. We had a short conversation as my roommate was busy. I watched the white couple until I finished my bottle and knelt down beside her, she let me in sucking on my side
She lets me take over and stripped me of my clothes. Turned me around to sit on him getting him angled for my pussy. And when I say down I feel him feeling me up. He slaps my ass as I start riding his cock. My roommate started sucking on my for a her fingers playing with my clit. He then wrapped his arms under my legs and arms picks me up and puts me on the couch, all without leaving my insides he then took over pulling my friend beside me, his finger quickly finding her snatch. We both start moaning, as he swapped between us. He finally cums deep I'm my friend's pussy.
He then gets dressed calling us both dirty names and walking out the door. I get up first to get out my underwear back on and make supper for us. She goes to take a shower. We found his car keys when he came back for them, he apologized for calling us c*nts and left again. I still see him around campus and smile at him.