Nabe Boy returns home from a long work trip, only to find his wife, Nabe Girl, and her friend have been entertaining themselves in his absence. The living room is filled with the scent of sex and the sound of their muffled moans. His wife's legs are spread wide, her friend's face buried between them, lapping at her wetness. Nabe Boy watches, hidden, as his wife guides her friend's hand to her own throbbing clit, their bodies writhing together in a dance of lust and betrayal.