I just got back early from Spring Break! I won a shitload of money in Atlantic City. My little step-sister is home alone in her panties and Nasa shirt. She wants to be an astronaut! I am so horny and realize that she has wanted to go to space camp since she was young. Now she is 18 and this is her last chance to go. I offer her the money for some sexual favors. She ain't having it! But later she comes back and gives in because it's the chance of a lifetime! She strokes my cock reluctantly and scared. She sucks on it and takes her clothes off for me. Now I tell her that she needs to fuck me because it's so much money! She loves it! I pound that sweet pussy until she squeaks and cums for me. I love fucking my nerdy little step-sister!!!