You have been so horny for your step-Sisters lately, you've come up with a plot to fuck one of them. You know the innocent will be easy to convince. She asks you what you want, and you tell her you need a favour which turns into having sex. If she doesn't fuck, you will tell step-Mom and step-Dad she is a slut. She doesn't want them to think of her that way and will do anything to remain pure and innocent. She reluctantly agrees to let you fuck her. The whole time she says how wrong this is and to hurry up. It feels so good to fuck your step-Sister you cum inside her. Now she feels degraded with your cum inside her and runs out of the room. The other comes in shortly after asking what just happened. You made the innocent cry, now this is so curious about what you did. You cave and tell her you fucked her. She is so jealous you fucked the innocent and not her. She demands you get your cock out and fuck her the same way or she will tell on you. This is such a slut, she is in love with your cock. She is prepared to get fucked on the spot, before you know it your cock is inside her. She lets you fuck her and rides your cock so good you can't help but cum inside her too, it doesn't help she was begging for it the whole time. She is so satisfied with your big dick loads that she wants you to fuck her later tonight too. Such a slutty step-Sister compared to the other one