Lucy's Change chapter 2

She barely managed to get them halfway around. In response, I grabbed her throat with one hand and a handful of hair with the other. I’ve always enjoyed the strangling, but I was usually the one doing it. Her small hands were surprisingly strong, and after a few hard pulls on her hair to get her to ease up a little, she did, but also gave me a sweet little slap on the cheek. It was no tap, and it left a mark but it didn’t hurt all that much, and I was sorry that the slap I gave her in response clearly did hurt. It knocked her head to the side and sent some spit flying from her mouth. She came back at me with a barrage of stinging smacks. The smile on her face and the tears in her eyes were sights to behold.
I could feel my cock bouncing around on my balls with each hard thrust, and Luce’s gorgeous tits, slick with sweat and bouncing, had never looked better. Still seemingly peeved at my smack, she was slapping me every few seconds now, not hard, but still stinging. With every slap, I tightened my grip on her slender neck. I was amazed at her stamina, fucking at a steady, fast pace for nearly ten minutes without the faintest hint of nearing her orgasm. I found myself not lasting as long. My prostate had grown more and more sensitive, and now I could feel every detail of her perfect cock; her foreskin as it was pulled back by my tightness, the back of her thick head, every vein. I could feel my orgasm coming, but it wasn’t in my cock. Suddenly, after a few hard slaps, I felt my rectum slam closed around her, and my spine seize as waves of fire and ice washed over it. I couldn’t move. I was cumming, but there was no cum. My cock was still soft and tiny, but I was having the most intense orgasm.
Lucy kept thrusting as best she could, but the contractions of my sphincters made it hard, so she focussed more on choking and scratching me. I was nearly oblivious. I only realized when my orgasm began to wane that I had tightened my grip around her throat when I came.