You're being annoying as usual, bothering your Big Step Sis as she's trying to read. She notices you playing with something in your pants and demands you show her what you stuck in there. Refusing to believe that it's actually your penis, she makes you take your pants off. Once she sees how massive your cock is, she starts to laugh and make fun of how stupidly big it is. Her mockery makes you want to put it away, but she bribes you to keep it out by showing you her tits. Of course that makes it even bigger and harder, and Big Step Sis demands you let her feel it for herself. She starts stro... Show more