Your girlfriends housemate Roxi is in the bathroom getting ready to take a long hot bath, she is leaning over cleaning it when you walk in and tell her you want to use the bath first. Roxi has no intention of letting you go first and when she catches you staring at her cleavage in her tight top she threatens to tell your girlfriend who is currently out! Fortunately for you though Roxi gets a better idea, she never knows when she will need a favor and letting you wank over her tits will be great black mail material for her to use against you!