Roommate wastes no time dicking down a cheating GF

Lived in a single room university dorm with my roommate for around a year. He would at some point meet this cute little Filipino freshman who's boyfriend went to a different university. They instantly hit it off and begin spending a lot of time in our room as friends. I don't mind any of this much since I keep out of their business and agree to not be too annoying. Eventually I can tell they're getting way closer then friends since they begin touching and cuddling and even taking a kink test together. One day (Rainy, around 5pm) I get the hint from him when she's over and decide to spend some time at my friends dorm which is right next door. Our bathrooms aren't shared but are pretty much separated by a really thin wall. While waiting for them to come back I begin to hear noises coming from their bathroom and on the other side of the wall in ours. Safe to say, he spent no time after I left getting into her pants... Audio was enhanced to remove noise and increase volume