My Asian stepdaughter… intense sexual encounter

My Asian stepdaughter, she is my stepdaughter but she has been entertaining me with meals, nice clothes and showers, of course after a few showers I get a chance to get into a bed and sleep, so you can imagine how I feel when she tossed me a phone saying she was planning an intense sexual encounter with me. This is not me dating my stepdaughter, but she has been playing a game that's been killing me. We’re both lost in the game now, I finally gave in.