Found my innocent 18-year-old stepdaughter with my penis in her vagina upon waking up

I woke up to find my stepdaughter, a stunning 18-year-old virgin, in bed with me. Her natural tits and big ass gape captivated me. I explored her thick body, and she eagerly took my dick. This isn\'t the first time we\'ve been intimate, but it\'s our first recorded encounter.