My best friend is always talking about how tiny her lil step-bro's penis is, so while she is out, I went into his room with the keys to his chastity to see for myself! He doesn't want to show me at first because he knows I will laugh at him. I'm a popular girl who has slept with lots of hot guys and even had a threesome with his step-sister and let him listen through the wall! He knows he doesn't really get a choice and he has no spine, I unlock his chastity and can't believe how tiny it is. I can barely even see it! Just for fun, I decide to make him stroke and edge to my amazing body so I can see how big it can get. I tell him to touch his nipples like a girl and he listens. Even at full length, it is so small. I belittle him while shaking and spreading my big ass, playing with my pussy through the fabric and pushing my boobs together. He could never handle a girl like me, and could certainly never see me naked! I step on his dick in my pink heels and tell him he should feel lucky. Then I make him stand up just to laugh at how short he is before pushing him down. I let him sniff my ass one time and then push him away. The degradation is harsh as I give him a cum countdown but never let him cum. I just throw the chastity back at him and take photo evidence of him being unlocked. His step-sister is not going to be happy that he stole the key and got out! I tell him to be my toilet and homework bitch for the semester if he doesn't want his step-sister to see the pics. I leave the room with the poor little wimp crying!