You confront your step-mother about things your friends have been saying. You want the truth from her. She does answer you honestly and admits to fucking your friends. She was out in a club and ran into them and she took them all to a hotel room for a gang bang. She starts describing in detail of the sexual encounter she had with your friends as she is taking her tits out of her bra to show you. You admit to her that your jealous and would have love to be there. So she tells you that they will do it again with you there this time.