Sabrina had such a good workout with you that she wants to show you some appreciation. You are her step brother, but she considers you to be her best friend. Have you ever thought about Sabrina as anything other than a step sister? I mean, you are not related, so you would not be breaking any rules. She thought you looked so sexy when you were working out with her. Do you want to just try something safe to see how it feels? Maybe you can show her your dick and she will show you what she has. You go first. She wants to see it fully engorged, so rub it a little till it gets hard. To encourage yo... Show more