Your nerdy sister is a secret slut. You think she's a prude... but what you didn't know is she has been fucking ALL of your friends behind your back... She teases you by listing them and telling you what she's done with them. You want to prove that you are a better fuck than any of them and show her your big cock....and she's impressed. So impressed that she strips for you and shows you her wet pussy while telling you all about how hard she came when your friends fucked her!