My step-sister and I were finally invited to one of step-mom and step-dad's swingers parties!! I was REALLY ready but my little step-sister who's a cheerleader, was scared to!! After a while she relaxed and everybody enjoyed watching she and I kiss and get naked with the rest of them! I got on the pool table and spread my pussy open, trying to shock her and when step-mom joined in and played with my clit, my step-sister figured out that she was going to get fucked too but FIRST, step-mom and I wanted to taste her little pussy and we did too, while everyone cheered us on!!