same room, it always seems like Marilyn is competing with Casey over Shane's attention. Marilyn arrives, and greets Shane with a kiss on the lips. Casey is taken aback by this but doesn't call them out on it. When she spots them caressing each other sensually on the couch, she can't hold her tongue any longer. "What the FUCK are you doing?" she demands. Shane pulls away from his stepmom. Marilyn, on the other hand, doesn't feel like she needs to hide anything, and proudly declares that she and Shane are sexually involved. Casey takes this all in and then realizes that no matter what she does, Shane will always crawl back to Marilyn. And if she can't compete with Marilyn, then maybe she can join her and Shane in their lovemaking.