My stepsister leaves a holiday party and seduces me, leading to intense sex on camera

The moment I opened the door, I was greeted by my stepsister, who had apparently had too much to drink at a holiday party. Her behavior was strange, flirtatious, and out of character. She was touching herself inappropriately and talking in a very seductive manner. It was clear that she was not herself, but the sight of her big tits and tight ass was too much to resist. I decided to take advantage of the situation and invited her inside. Once inside, the action quickly escalated. I can't remember exactly how it started, but before I knew it, we were both completely naked and engaged in a wild sexual encounter. I took her from behind, fucking her hard and fast. The sight of her big tits bouncing up and down was incredibly arousing. The sex was intense and passionate, and I couldn't help but record it all on camera. It was a night I will never forget.