Hidden away in the closet, a brother and sister, bound by religious constraints, find themselves drawn to each other's bodies. Their hearts pound as they tentatively touch, the sister's hand grasping her brother's throbbing erection through his pants. As they strip, they're haunted by guilt, but their bodies betray them, lubricating and aching for release. They stand, his massive cock pressing against her untouched slit, as they slowly begin to move, rubbing their bodies together, before collapsing in post-coital shame.