I caught you! Going through stuff in my room, smelling my underwear - I know you've never had a girlfriend, and probably never done "IT" so as long as you promise not to tell step-mom and step-dad, I'll let you watch me touch myself. I mean it should be your big step-sister to show you things for the first time. I'm going to put my hands down my pants and play with my pussy and get it really wet, and I want you to pull out your dick and stroke it, and both of us will cum at the same time. Just don't tell step-mom and step-dad okay?