With barely a whisper of clothing between them, the devout siblings surrender to their carnal urges. Her small hands wrap around his throbbing length, guiding him to her virgin entrance. He pushes in slowly, their eyes locked, as she gasps at the unexpected pleasure. Their bodies move in sync, their breaths ragged, until they reach their peak together, collapsing in a tangle of limbs and whispered promises to keep their secret sin.