In a house full of hormones and secrets, four stepsiblings challenge each other to a month of celibacy. But when Rion, Parker, Natalie, and Amber can't keep their hands to themselves, they find themselves in a wild, swapping orgy. Doggie-style, cowgirl, and every position in between, they explore their darkest desires, fucking their way through the night and proving that some bets are meant to be broken.