Step by step: My boyfriend uses my stepsister for sex

In a twist of fate, my boyfriend and my stepsister have always shared a certain chemistry. I've always been curious about what it would be like to watch them together, and today, my fantasy finally comes true. I catch my boyfriend in the act with my stepsister, and instead of being upset, I'm turned on. I decide to join in, and we turn this into a full-fledged threesome. My stepsister is 18 and a total hottie, and my boyfriend can't get enough of her. He starts by teasing her, his hands all over her body, and then they start going at it. I watch as my boyfriend fucks my stepsister, her moans filling the room. It's a sight to behold, and I can't help but join in. We all end up in a tangle of limbs, the room filled with the sound of our pleasure. This is definitely a fantasy that's come true.