Watching his stepsister flaunt herself like that gives Nathan one hell of a boner, but he knows Kate will take care of him. She obliges him by pulling his cock close to start sucking. Getting super into it, Kate sucks Nathan deep and hard. Then she rolls onto her back and welcomes him inside the tight glove of her fuck hole. Moaning loud and long, Kate encourages Nathan in his pussy pounding. They enjoy some acrobatic adventures with Nathan flipping Kate over as he bangs her. When she gets onto her hands and knees, he gives it to her doggy style while holding nothing back. When Nathan lays down on the couch, Kate climbs on top of him to go for a stiffie ride. She rubs her clit to double down on her pleasure, then turns around to ride while facing her bro. Back on her hands and knees, Kate lets Nathan go to town on her as she enjoys another climax. He pulls out to cum on her ass, leaving Kate with a treat to enjoy as she wipes herself clean.