Your GFs roommate knocks on your door right after your girlfriend heads to work. You know what she's after but you promised yourself last time was the LAST time. You want to be a better boyfriend and you certainly have to stop fucking all her friends to achieve that. On the other hand her roommate is such a slut. She's got massive tits (which your girlfriend certainly doesn't) and she's always begging to be fucked. She wastes no time seducing you by pulling her tits out of her shirt, of course she isn't wearing a bra either. She puts them in your face and teases you until you give in. She bends over on the bed and looks directly at you: You know you want it. You slide in her and start pounding doggystyle. She's so good at knowing exactly what you want, and she pauses to push you down on the bed and mount your dick. Riding you with those massive melons in your face. It's almost too much, in fact.. it IS too much. You blow a load so deep inside her as she giggles and tells you to give her more. You know you've been a bad boyfriend but at this point you just don't care.