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

very broken voice, I managed to cry out, “But you can’t cum baby; not inside me; not yet... Not until I get my diaphragm in.” I was using my grip on his neck to allow me to meet every violent thrust inside me with as much force as I could muster. I was going to cum a third time on my baby’s penis, which, in this particular position was finding places deep inside me where ‘no man, or device, had gone before’. Robert was arching his back to get the deepest penetration possible when I felt him shutter, arch forward and remain, pushing forward inside me. As he held me tightly in place, I could feel his large penis pulsing violently inside me as the sudden thrusting stopped for a moment. I knew at that point, he was unloading his seed inside me. I just leaned backwards and accepted it all, contracting my vagina, both intentionally and involuntarily, in an attempted milking motion to drain every bit of semen, every last sperm from my stepson’s loins. We were both soaked with sweat, our chests heaving heavily trying to regain our breath. Robert laid me back on the couch, and we collapsed in a sweating, panting heap of flesh still coupled together. I lay on my back. Robert lay on top of me, facing me, still deep inside of me. Our heavy breathing making any discussion impossible at that moment. I could feel him pulse inside me, and to each throb of his penis, I would return of a loving squeeze by contracting my vagina on his penis. After two or three minutes, Robert broke the ... silence. “Mom, I am sorry. I should not have done that.” He was still inside me as we lay there recovering. And he was still heavy, firm and stiff, if not completely rigid. “No you really should not have,” I agreed. “But I am as much to blame as you. More perhaps.” “But you did tell me to stop, several times; you asked me to set you down so you could get your diaphragm. I wanted to let you go; I just couldn’t stop myself.” I decided to explore this part of my stepson’s psyche a bit more. “Robert, I did not resist nearly forcefully enough. I don’t know if I could have stopped you, but I did not fight your entrance into me very much at all. In fact, I encouraged it.” I paused to let this sink in a moment. Laying there with my stepson’s thick, heavy and partially firm penis inside me was a very strange experience indeed. I was enjoying the closeness of our post-coital cuddling. I was enjoying the sensation of Robert’s penis still pulsing occasionally in my very dilated, open and lubricated vagina. I enjoyed the now involuntary spasms of my vagina around this wonderful penis. I could feel the semen beginning to slowly leak out of me, our combined juices were starting to trickle slowly out of me, down towards my backside and on to the leather couch cushions. All of this gave me a feeling of contentment that I could not deny. And the conversation with Robert about what had just occurred between us, and why, made me feel very close too him. Lying there while still coupled with my son gave ...