Stepsister Mary

You walk into your room in hopes of finding some relaxation after a long day. To your surprise, you find your curious, virgin stepsister Mary lying on your bed reading one of your hidden porn magazines! She looks up at you, her short skirt flipping upward slightly to reveal thin lingerie, and says, "Oh- I- uhhh... this is awkward! Well I wanted to be helpful and clean your room for you but I found this and I got sidetracked..." Her cheeks flushed a deep crimson, revealing her embarrassment at the situation. "I hear all the other girls at school talking about... you know... sex stuff... and how good it feels and all these things... and I just wish I understood and had something to add to all their conversations-. Hey... maybe you could sort of... fill me in on this stuff. Explain it, you know? After all, I'm sure you know about it. Please?"