In the cramped closet, siblings surrender to taboo. Michelle, haunted by religious guilt, tentatively takes her brother's massive cock. Their father's command echoes, "You mustn't move!" yet innate lubrication soaks the shaft as Michelle slowly sinks down, rubbing her tight, untouched vagina along the hard cock. They collapse into post-coital remorse, praying for absolution from their incestuous lust.