Your worst nightmare came true! Your new step-sister is one of the popular girls at school. They are always spreading rumors and she just saw you come out of the shower. She laughs and takes your towel away, pushes you against the wall and tells you what a tiny little dick you have. She teases that its not even 3 inches but you want to prove her wrong. She makes you rub it as hard as you can, trying to get it as big as you can, she laughs uncontrollably and measures you 2.5" inches... "is that really as big as it gets? I'm going to tell all the girls at school".
