A Stepmother's Sin - Chapter 5: I try to understand what is motivating my stepson - Sex Stories

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A Stepmother's Sin - Chapter 5: I try to understand what is motivating my stepson

Date: 11/15/2015, Categories: Taboo, Author: submissivemom72, Rating: 22, Source: LushStories

cock was so rigid that it felt like his dick could support my entire 105 pound frame if he released me from his grip. He moved his hands from under my legs to my hips where he pulled me, suddenly and violently, towards him, fully impaling me on his erection. The suddenness of his large penis piercing my vagina was unexpected and, surprisingly painful, and extremely stimulating. I was not ready to accommodate his full length and girth. The sudden shock of pain and pleasure as he impaled me evoked a loud screech from deep in my core. It was a sound I had never before heard, and certainly never before made. (I do not even know how to imitate the guttural sounds I made at that moment.) Of course, the sudden penetration was like nothing I had ever experienced or felt before either. But the shot of pain subsided quickly and rapidly became waves of pleasure as my vagina was forced open to accommodate my stepson’s erection. This massive penetration initiated my orgasm. My hands were now clasped, fingers interlocked behind Robert’s neck as I held on for dear life, Roberts’s hands on my hips pulling me into him violently to meet the rapid thrust of his hip as he pulled in and out of me. His thrusts slapped up against my ass and thighs, bouncing me up and his strong hands were catching me and positioning me for his next thrust. Being a relatively petite (and short) woman, I had never been able to make love standing up. My partner was always too tall. And no one had been able to lift ... and move me with such ease to fuck me in the manner and position that my muscular stepson was at this moment. The rigidity of his penis, and the ‘angle of attack’ forced the head of his cock to strike the front wall of my vagina with such force that it initiated a very powerful orgasm that had me responding uncontrollably to the rapid and violent pounding my stretched little pussy was being subjected to. I was being bounced up with each thrust only to be driven back down to meet the next one. I was crying out, I was afraid I would pass out. I alternated between begging Robert to stop for a second and let me gather my senses, to begging him to never stop fucking me like this. I was incoherent. And I was cuming over and over again. I could not stop. I just had a long powerful orgasm wave crash through me, and felt another building behind it. Robert’s massive strength and size allowed him to move my small light body around at will. I was little more than a light doll to be tossed and turned on top of his rod. I came a second time as he pounded my tight little pussy from underneath me. He obviously had decided to spill his seed into what he believed to be my unprotected womb, or maybe he just gave into the passion of the moment. Either way, as Robert bucked in and out of me, he thought he was impregnating me, or at least thought that he might be. I decided to play along with this belief a while longer. “Oh baby, you are making me cum so hard,” I cried out between his thrusts. In a ...