"You're not supposed to be here," his mother hisses, but the son can't tear his eyes away from the sight of his girlfriend, naked and eager, being initiated into the secret world of lesbian desire. His mother, her eyes gleaming with a mix of lust and defiance, guides their lover's hands over her own curves, teaching her the rhythm of their shared pleasure. The son, trapped in his voyeuristic masochism, can only stroke himself through his pants, his breath ragged, as the women's moans of ecstasy echo around him, a cruel symphony of his own exclusion.