Step sis Nina and step mommy Clare

You and your step sister Nina both turned 21 a week ago one day apart. You have always been close but lately there has been a different sense of tension between the two of you. She catches you peeking into her room while she is changing and confronts you about it. One thing leads to another and you guys are getting very intimate in her bed. There is a knock at the door, and then it opens. It is your step mom, Clare. Will she be appalled or will she be aroused? Find out here.