Bee Gees "Love You Inside Out" (1979)
Hot 100 Peak Position: No. 1
Even if you get cheated on, sometimes the love (and sex) is so good that you might find yourself casting pride aside and running back to your wayward lover with open arms. That's the predictament at the core of this record. There's a certain cuckolded perverseness to the singer's desire to love a woman who's just been with another man "inside out." Ew.