Parker Ambrose and Thea Summers arrive at a vacation rental to learn that they'll be sharing a bedroom. After a bit of stepsibling bickering, they realize that they only way they'll be able to make it work is by working out the sexual tension between them. Thea starts it by popping her titties out and insisting Parker touches them. Then she gropes his crotch, finding him already hard.

Laying Parker out in bed, Thea takes his dick in hand and begins sucking. She's a wizard with her mouth, making Parker eventually reach out to tug her hair as a warning that he might cum if she keeps up her good work. That's the perfect time for Thea to shimmy out of her shorts and take on Parker's dick in cowgirl.

Turning around, Thea gives Parker a reverse cowgirl ride. She gets on her knees so Parker can dick her down properly in doggy. Then Thea rolls onto her back so Parker can spoon with her to make her squeal. Parker finishes Thea off as he's cradled between her thighs, and then takes his own pleasure by giving his stepsis a mouthful of cum to enjoy.