Brother and sister's taboo temptation

In the confines of their shared home, a brother and sister find themselves alone and restless. She retreats to the bathroom, her hand sliding down her pants, fingers dancing on her clit. He, overhearing her soft moans, enters without knocking, catching her mid-act. Their argument escalates, but later, they reach an understanding. Naked, they explore each other's bodies, her eyes widening at his size, his breath hitching at her wetness. Just as they're about to cross the final line, a noise startles them, forcing them to pause their forbidden dance.

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