Damon Dice suffers from OCD and his stepsister, Kiara Cole, loves to make life difficult for him. She leaves a mess when she gets out of the shower, walking around while dripping water everywhere. When Damon confronts her, he finds her half naked with her feet already filthy. He claims he's going to cum on Kiara's feet to teach her a lesson, but Kiara calls his bluff and gets flirty until Damon leaves. The stepsibs joke about it later when Kiara asks Damon to pass her some sugar for her coffee. Later still, Kiara gives Damon her offhanded consent to him jizzing on her feet without realizing that he's been perving for her.

When Kiara clues in, she tells herself that Damon's OCD won't let him actually do it. Still, it's fun to tease so she starts rubbing Damon's dick with her feet. Popping Damon's hardon out of his pants, she gives him a full on foot job. As Kiara suspected, Damon doesn't cum right away. Now that Kiara has started teasing Damon, she finds that she really does want to see if he'll go through with jizzing on her feet. She gives him a handjob to see if that helps him. Sucking Damon off comes next, which still doesn't make him pop.

There's only one thing left for Kiara to do: she hops onto Damon's fuck stick to start riding him in her nicely trimmed pussy. Fucking her brother is fun! Kiara gets on her hands and knees and urges Damon to take her doggy style. Then she rolls onto her back, spread wide open for Damon to take her to pound town. As Damon gets close to cumming, Kiara draws her feet together so he can aim his jizz at the soles. He surprises her by doing exactly as he promised, covering her feet in cum that she eagerly licks clean.