"Good girl. Now get cleaned up in the bathroom and get dressed so I can take you home. Your parents are going to start worrying." Yes Sir." She went t...o do as I said while I got dressed myself.On the way to take Kim home, we talked a little bit about what had happened. "Sir, can I ask... how did you know I was a submissive? I mean I didn't even know!" No, my dear, you knew there was something different about you... something that made you want to please people. You just didn't know what it was.. I squirm and watch, love being teased but also hating it. You slowly take off your babydoll and twirl it in the air, slapping me across the face with it. I take a deep breath and smell your perfume and your hot scent all over the satin. Working your way in front of me, you take the babydoll and wrap it around my throbbing cock and slowly run it up and down, stroking me, teasing me even more. I squirm even more and moan even louder, I tell you that you are great big tease. I watch you smile a. As they headed out of the pool that night, all I could think about was what the fuck is going to happen if someone ever finds out what we've just done. That I was just naked in the swimming pool with my step-daughter. Or her high school age friends.Little did I know that it wasn't even the end of it.The girls had grabbed their bikinis and their towel and headed into the house. I pulled up my swim trunks, and hadn't put on a shirt. I just grabbed it and went into the house. I didn't know what to. And jokingly said we should send it to her sister as well…..just to show how sexy her sister looked. I added that of course that would mean the sister needed to reciprocate with a picture of her own. Well, that was a few days ago, before my wife left town. We never did get a chance to send that photo, but her sister is texting, looking forward to seeing my handy-work, and these photos that “are not naughty, but just beautiful,“ is how I put it. Implying the photos and lovemaking afterwards.