[MF] Mutual masturbation with my new roommate

This happened over this past weekend. I live in a house with 4 other roommates. The newest roommate, Chelsea, moved in about 2 months ago. She’s a cute bubbly 24 year old with a very slim and fit body. She is about 5’5″ and runs and works out a lot and is always walking around the house in small running shorts and workout shirts. Her shorts always cover up her small butt but still short enough to give a bit of a glimse of her cheeks hanging out. I’m 33, about 5’9″, skinny but could use to lose a few pounds.

Chelsea started dating a guy right before moving into our house and seems to be happy with him; most of the time. Every now and then she comes home talking about how he’s upset with her for one thing or the other. Not big fights but I think he’s just an emotional guy with lots of feelings and doesn’t know how to express himself correctly to her.