Fuck Your GF Your S1ster Loves You More

I come to say hi to you while your in your room... I notice your girlfriend left you with an erection and blue balls again.. shes always doing that to you! I dont know why you even bother with her. You only need me. You ask me to help you before mom and dad get home but my boyfriends still in my room... luckily for you hes being annoying right now and i would love nothing more than to help my brother out!