Stepsiblings discover a common curiosity. (Note: This story series contains hot incest with siblings)

Enjoy..

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The first time Chris saw his stepsister masturbating, it was the most erotic sight he'd ever laid eyes on.

She laid on her bed, oblivious to his presence, her hand sliding inside her jeans. Her other hand roamed underneath her tank top. Her cheeks were flushed and rubbed against her bare shoulders as she squirmed over the covers.

He'd come home not ten minutes ago from his dentist appointment. Apparently she'd been so consumed by her task, she hadn't heard him come in the house. When he'd reached the top of the stairs, he...