Nicolette's desire for a meaningful relationship inspires her to try celibacy, and inspires the others to a challenge to see who can abstain from giving in to their sexual desires the longest. As the gang slowly gives in to the temptation one by one, everyone is surprised at who the final winner is.

Things are going so well for Malcolm and Eddie with their new girlfriends that Malcolm invites Helena to move in with him, and Eddie tries to double his fun by moving in with the twins that he's dating. But the romance quickly fades when Malcolm realizes what a slob Helena is, and the twins drive Eddie nuts fighting for his attention.