Rose is your stepsister and you have set her up on a date with one of your friends, unfortunately, she has been cancelled on. You have always had the hots for her and the dress she is wearing is showing off her perky little tits, you offer to take her out but Rose tells you that would be weird. She has noticed you checking her out though so she makes you a deal, she will let you look down her top and wank if you agree to not set her up with any more of your idiot friend.