Your girlfriend's step-sister is resting on the top bunk, but Kasey snuck you into the bottom bunk so that she could watch you jack off. This seems wrong, but you are totally turned on by the sneaky nature of this encounter. You take your cock out of your pants and start jerking off. You love when Kasey jacks you off, but having her tell you how to stroke off is a turn on. You have to be sure that you keep quiet, though. You will be in big trouble if Kasey's step-sister wakes up and finds you in the bottom bunk! Kasey starts to rub her pussy. Her lips have no hair on them, but she presents an ample, dark bush. Did you realize how horny Kasey is just from watching you play with yourself? You are so turned on that you know you will not be able to stroke off for much longer. Kasey is ready to see you have your orgasm, but you have to do it quietly. Can you cum without making a sound? You can? Well, then, cum now for Kasey!