While you are waiting for your girlfriend you start talking to her sister Kayla who seems to be very flirtatious! She asks you if you can find a pin that she dropped on the floor earlier, when you get down onto the floor to have a look you see that she is sitting with her legs spread open showing off her panties. When you come back up with a bulge in your pants Kayla knows that you have looking up her skirt and she is more than happy to have some fun with you.