Darrien and Ramona have been at war from the moment Ramona's mother married Darrien's father. After enduring years of them fighting, their parents decide to take drastic measures. Darrien and Ramona are sent on a "getaway," so they can work out their differences. Young, extremely horny and with nothing to occupy their time, the stepsiblings soon realize there's a fine line between love and hate.

After their passionate week at the cabin, Ramona and Darrien attempt to go back to their lives as though nothing ever happened between them - but that's easier said than done. While Darrien deals with his intense hunger for his stepsister by throwing himself into his work; Ramona refuses to ignore the passion they shared or her burning desire to be with him again. With typical Ramona flair she does what she feels she needs to do to get him back into her bed. But will her plotting and scheming go too far this time?

When Ramona moves out of her parents' Beverly Hills mansion and in with her stepbrother Darrien their parents become suspicious as to her motives. With their trust funds on the line the stepsiblings do their best to keep their parents from finding out about their scandalous relationship. Also, Darrien realizes that living with Ramona will never be boring when he discovers her trunk of sex toys - nipple clamps, vibrators, stap-ons, oh my!