Sister's Secret Castigation

The siblings, locked away in their secret chamber, give in to their carnal desires, their bodies slick with sweat and sin. He, massive and muscular, towers over her, his cock straining against his tight briefs. She, small and delicate, whimpers as he tears off her clothes, revealing her firm, perky breasts. He devours her, his mouth and hands exploring every inch of her body, marking her as his. She moans, her hands clawing at his back, urging him on, their mutual lust a dark, twisted prayer in the face of their forbidden love.

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