Nate's on a treasure hunt—to find the gold ball his ex-girlfriend has secreted inside herself. What's she doing playing with sex toys at her wedding rehearsal anyway? And can he get close enough to find it before she says "I do" to the wrong man? Lexi doesn't know why she picked today of all days to try out the Ben Wa balls, but they have her primed for sex—and thinking of one sexy, bad-boy mechanic. Too bad Nate's not the one she's marrying, but he always said oil and champagne didn't mix.