Your roommate walks into the room in some sexy lingerie and a toy. She wasn't expecting you to be home. However, you have your girlfriend coming over and this would look bad. Eye roll. Come on, it's not wrong if you just watch your roommate masturbate before you have company over. Heck, you might last longer. Yeah, I have touched myself while you have gotten it on with your girlfriend. Strip tease and seduction gets you hard. Eventually, we are both masturbating together. I have to admit, the more worked up I get, the more I wish you could fuck me. But we can't. So we just masturbate together, me encouraging you, and we cum together. Who knows what will happen between us now.