I am just getting ready to leave summer school for the day when I notice you looking up my skirt. I blush and run out of the room. You are embarrassed but really turned on and you figure that since you are all alone now you will masturbate to the thought of me. While you are playing with yourself, you see me peeking through the door and giggling. I tell you not to stop and start playing with myself in front of you. I get so wet that I slip and land on your cock. We are both shocked at first then I start to ride you and get really into it. After I make you cum deep inside of me I get dressed and leave you my panties as a souvenir.