Lilah "You're A Perv!"

You've asked your sister if she can help you with your college work, but she says that she'll do it in the morning, she's just about to go to bed... You've known for a while that you can see through the keyhole in her door and you couldn't resist having a look to see what she's doing... Turns out that she's not going to bed early, she's going to masturbate with her huge dildo! You instantly whip your COCK out and start WANKING. Watching your sister WANK has always been a fantasy of yours.