After that we began to meet up more often; I would text her when I was going to be coming home and, if she was available, we’d go out to a see a fil... or have dinner somewhere and she would stay the night with me. We had made no actual commitment to each other, nor had we requested any exclusivity, but in fact, we were becoming quite attached to each other and I suspect that I was not the only one having the thought that I might – just might - have met “The” one.One day, about four months after. I hoped she hadn't seen my erection.For the next few classes I eagerly awaited the final relaxation period. But for a couple classes Kim didn't come around to me. Then, one night, as I lay silently in corpse pose, connecting with my body, falling deep into my thoughts, I felt Kim again.I could tell she was standing over me, one foot on either side of my chest. At first she pushed down on my shoulders, hard, the way she had the first night. Then, softly but firmly, she sat on my chest, her thin. After the initial shock, it hurt less, but I could feel a constant pressure and a tugging from what I guessed was a clothespin. I breathed a deeply a few times to get used to, but just as I was starting to relax, my right nipple was pulled hard and ruthlessly clamped.I struggled in my tight bonds, trying to shake the pegs off my nipples, but what little movement I had just made them pull harder and I finally subsided.I heard Scott chuckling to himself as first one, then the other side was. Without another work I began withdrawing my cock until just the tip was imbedded and then drove back in as hard as I could and she squealed. I did it again and the squeal was more like a moan. Buy the third stoke it became an umph and a moan and by the fourth it was a constant moan. With that I started a steady rhythm of deep stokes so my balls slapped her ass on each down stroke and the tip of my cock almost escaped with each up stroke. Jan began to verbalize her moans. Oh yes. Oh that feels.