Your new girlfriend and your step-mom share a birthday, so you go out to get them a present the day before, picking a sexy little outfit for your girlfriend and a new sweater for your step-mother. You stop by the next day to give your step-mom her gift, passing it across the table and watching as she peeks in the bag. She seems really surprised, and even moreso when you tell her to try it on! She goes into the other room to change. You wonder why she didn't just put it on over her shirt, but you figure she just wants to know the true fit. A few minutes later, she calls you to come into the bedroom and see how it looks. When you walk in, you immediately realize your mistake: you gave your step-mom the sexy outfit meant for your girlfriend! What's even more alarming...is that she looks awesome. Hot. You can't keep your eyes off her, and you can't hide your shock. She asks what's wrong and you blurt out that it was for your girlfriend. Humiliated, your step-mother tries to hide but you tell her it's ok, that it was your mistake and she looks great. She smiles a little. "Really?" she asks, "you're not just saying that?" You tell her no way, she looks super hot. You'd like to think you aren't trying to get somewhere but your raging boner says otherwise. You confess that it's not supposed to be worn with a bra, trying to suggest she should take it off. Your mind is on autopilot, you want your own step-mother...you can't help what you say, what you do...and she's agreeing. You watch as she slips it off, showing you her big, heavy tits. She teases you with them, playing with her nipples while you stroke through your pants. Her eyes wander to your crotch. "Take it out," she purrs. "I shouldn't want this so badly...but I do. I want my step-son's cock!"
