I discovered my stunning step-sister pleasuring herself and joined in

I stumbled upon my breathtaking step-sister indulging in self-pleasure, and I couldn't resist the allure. Her fingers danced over her soft skin, her breath hitching as she neared the edge of ecstasy. I couldn't resist any longer, and I joined her in her intimate moment. The sight of her writhing in pleasure was too much to handle, and I unzipped my pants, revealing my throbbing member. She hesitated for a moment, her eyes widening in surprise, but then she took me into her mouth, her lips eagerly devouring my manhood. The sensation was overwhelming, and I knew I had to give her the real pleasure she craved. I took her by the hips, driving myself deep into her, filling her with my seed, marking her as mine. The taboo thrill only fueled our passion, as we lost ourselves in the heat of the moment.