I can't believe I just walked in and caught you, my step-son, stroking off! Well, don't be shy and don't stop. Let me see what my step-son is working with! OMG! Is that really all you have? WOW! That is so fucking tiny! You have such a small penis, OMG, no wonder you never have any girls over. There's no girl on earth you can satisfy with that tiny little dick but guess what? Today is your lucky day because I am going to sit here and encourage you to stroke your little penis. I'll be nice and show you my tits as I guide that little penis of yours. When you are ready to cum I will turn around and show you step-mommy's big butt and give you a 10 second countdown so you can finish what you were doing when I walked in on you, cuming. I am looking forward to seeing how little my step son's little penis cums.