Fondling a banana gives redheaded minx Scarlet Skies an idea. Her stepbrother, Alex Mack, comes to ask what's going on. She stares at his crotch, then tells him that she was thinking about where guys' dicks go when they're wearing pants. Using the banana, Scarlet tests out a variety of dick poses until Alex tells her to cut it out. Later, Scarlet tells Alex that they're supposed to be a stepfamily and that he needs to make it up to her that he was rude earlier. He can do that by telling her where the D goes while boys are wearing pants.

As Alex reluctantly describes the positioning intricacies, Scarlet gets increasingly handsy. Alex tries to tell her to quit it, but Scarlet has found his cock and she's not about to let it go that easily. She pushes him onto his back and crawls on top of him so she can peel his jeans off and pop that boner out. Fisting it, Scarlet strokes it to a nice hardness and then goes for gold as she opens wide to take Alex's cock into her mouth. Watching his cute redhead stepsis sucking him off melts away any objections Alex may have had, especially when it becomes clear that Scarlet wants to go all the way.

Still kneeling over Alex, Scarlet peels her tight shorts down to unveil her hot bubble butt. Of course he doesn't object when she sinks down to ride him in cowgirl! Watching his fuck stick disappear into that redhaired trimmed muff is the perfect aphrodisiac for Alex, and those bouncing little titties make it even hotter. Scarlet gets on her back so Alex can kneel between her thighs and pound that pussy to the tune of her mewls and moans. Then she takes a doggy style pussy pounding as Alex's hands roam her ass. Pulling out just in time, Alex blows his nut on Scarlet's butt. Even as she's tasting Alex's cum, Scarlet muses aloud about Alex's dad's dick.