Your family is going to your aunts wedding soon and your step-mom told you to get a pair of formal pants. You can never find any that fit right, they're always too tight around your crotch but your step-mom insists you can't wear baggy pants to the wedding. She tells you she need to measure your inseam because that's probably the issue, your inseam is too long for the pants you've been trying on. She tells you to stand up and take off your pants and you're reluctant because you didn't put on any underwear this morning but don't want to admit it. Finally, you give in, and your step-mom is shocked, not just because you don't have any boxers on, but because you have an enormous cock. Your step-mom tells you to lay on the bed to measure you and is shocked by how big you are. She can't help but suck your dick and wants to see how much further it can stick between her tits and compare it to step-dads. step-Mom can't believe she's had this huge satisfying cock in her house. She begs you to fuck her. You fuck step-mommy deeper than step-dad ever could.