Sia desperately wants to work with her stepdad Jay at the mechanic shop, but her stepmom Lola doesn't consider this a good idea. Sia has a huge crush on him, but Lola, jealous of her stepdaughter's youth, won't risk leaving her alone with her husband. One day, Lola drops by Jay's shop to surprise him with a hot blowjob, but she suddenly has to hide in the back office because someone walks into the place as well. In the rush of hiding, Lola doesn't realize that it's Sia, who pretends to be interested in her stepdad's work to get close to him. Deceived by Sia's lies, Jay lets his stepdaughter help her out, showing her how to repair an engine. He soon realizes that Sia is much more interested in his crotch and falls into her trap. As Sia finally gets the chance to taste her stepdad's dick, Lola interrupts them and threatens to storm off. Jay manages to cool her off, prompting her to think about what to do next. Lola eventually realizes there's no point in competing against Sia, and the best way out of this sticky situation is to share Jay's cock with her stepdaughter.