Stepdaughter seeks to play with my smartphone as I sexually advance on her, including touching her vagina and stimulating my penis with her ample buttocks

My stepdaughter has always been a bit of a mystery to me. She's a sweet girl, but there's something about her that makes me feel like I can't quite connect with her. Maybe it's her age, or maybe it's just her mysterious aura. Either way, I've been trying to get closer to her lately. I started by giving her my old smartphone, hoping that she'd be more comfortable around me. And it worked. She was over at my house the other day and she asked if she could play with my phone. I said yes, of course. But then things got a little more interesting. I started touching her vagina and soon enough, I was stimulating my penis with her ample ass. It was a wild ride, but I think we both had a good time.