Pervy Friends

You've arrived at your friend's house early and he's not even home yet, so you sit in the front room with his sister while you wait for him, but you're freaking her out cause she can see you trying to catch glimpses up her skirt! You're getting a hard-on and your dying to have a wank so you begin to pull out your cock and she's in disbelief at what you're doing! If you get it out of your system will you then leave Kacie alone you massive pervert!?