Sex with My Boyfriend and His Roommate

My girlfriend and I arrived at my apartment and found my roommate very concentrated on doing university work, he never realized that we had arrived so we let him study in peace... Later that same night my girlfriend goes to the kitchen for a glass of water and finds him masturbating but he doesn't realize... Missed by my girlfriend's delay, I go looking for her and find her touching herself while she watches my roommate, that made me quite horny, and when DaniClark got He realized he was very embarrassed... What a surprise he got when we invited him to our room to make a delicious threesome!!! I love seeing my slutty girlfriend enjoying other cocks!