I ejaculate in my slim stepdaughter's vagina when my spouse is using the restroom

I've always been intrigued by the forbidden fruit that is my stepdaughter. She's 18 and has a body that's impossible to resist. When my wife is away, I can't help but give in to my desires. I find myself in her room, my hand exploring her tight, wet vagina. The risk of getting caught only makes it more exciting. I'm not just fingering her, I'm giving her a full-on orgasm. My hand moves faster, my breath hitching as I feel the familiar sensation building up inside me. And then, with a final stroke, I release my pent-up desire, filling her with my hot, sticky cum. It's a moment of pure pleasure that I can't help but repeat. Over and over again.