In a thrilling turn of events, I found myself in a tantalizing scenario with my step-sister. She harbored a secret desire to be dominated by her step-brother, and I had the perfect opportunity to fulfill her fantasy. As she lay on the bed, I took control, exploring her luscious curves and delving into her inviting pussy. While she was being pleasured, her husband joined in, eager to witness the spectacle.With her husband watching, I took the reins, relishing in the sight of his wife's ecstasy. I plunged my sizable member deep into her tight backdoor, eliciting gasps of pleasure. The sight of her husband's large cock penetrating her from behind only added to the eroticism.The climax was intense, with both husbands satisfying their step-sister in a way she had always craved. The vision of her husband's semen in her ass and mine in her pussy left her breathless, fulfilled, and longing for more. This was the ultimate 3some, a memory we'll cherish forever.