My hookups roommate walked in on us fucking... And it made me cum 19f

So after getting back from a Halloween party last night, me and my fwb ended up back at his place with his cock deep down my throat and then my pussy. We thought his roommate was gonna be out all night, so we felt safe fucking right in the living room on the couch.

At one point he was fucking me really hard from behind while I was bent over the back of the couch and we heard the door suddenly open. I looked and saw his roommate who just stood stunned and stared. Im not sure why but even tho I wasnt really close, it caused me to start cumming instantly.

His roommate, watched me cum before stuttering sorry and covering his eyes and shuffling to his room lmaooo.