Incestuous siblings' forbidden masturbation session

Two siblings, bound by blood and boredom, find themselves alone and horny. The brother stumbles upon his sister masturbating in the bathroom, her ebony curves glistening. They argue, but the tension only escalates their desire. Soon, they're naked and masturbating together, the brother's thick cock aching for his sister's tight pussy. Just as they're about to cross the final line, their mother walks in, forcing them to abort their taboo encounter, leaving them both breathless and yearning.

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