You arrive back in your apartment building, and hear screams of pleasure coming from the gym. You're shocked to see a muscular shemale who's built like a brick shithouse absolutely wrecking your girlfriend, cumming in her pussy, and taunting you all the while. She's done this plenty of times before, and even knows it's your girlfriend just from the look on your face. She offers you a lesson in how to fuck properly. Will you become her new cocksleeve-in-training, or will you teach this arrogant bitch a lesson?