A Step Mother's Sin - Chapter 4: It Spins Further Out Of Control - Sex Stories

A Step Mother's Sin - Chapter 4: It Spins Further Out Of Control

... without further protestations. He approached me, pushing my legs back so my heels were touching my ass, and he slowly spread my knees and climbed between my legs, his penis bobbing impatiently in anticipation of finding its home. The head of his penis had no trouble finds my opening this time, all of the petting and touching had my vagina open and ready, and my own wetness and the spermicidal jelly allowed him to slide right in. His girth was more than I was used to, but in my highly aroused state, I could accommodate the thickness. But his length took a little bit of work. “Oh baby, you are a very big man. I am not used to anyone your size,” I cautioned. “You are stretching me. Please be gentle, go slowly. You don’t want to hurt me.” Realizing that I had agreed to allow my stepson to enter me, I gave up all thought of resisting. I wrapped my legs around him, my heals propped against his firm ass, allowing him full access to my vagina. He slowed down a bit and took a dozen or more slow strokes, going a bit deeper each time until I had all of him inside me. I was very, very full; fuller than I had ever been before. And I was very aroused. While I knew this was wrong in many ways, I could not deny the incredible response I had to my stepson’s advances and attention. With my legs straddling his torso, Robert began fucking me slowly and deeply. He would pull all the way out before plunging in slowly and fully. He fucked me like this for several minutes, bringing me to the edge ...

... but not pushing me over. Robert then raised my legs over his shoulders. My ass was now high in the air and my ankles were up next to Robert's ears. No one had ever fucked me in this position before. In this position he had me totally exposed and totally vulnerable. He looked down, watching his penis enter and withdraw from me with obvious admiration and pride. The head of his penis was striking my g-spot with each deep thrust, driving me closer and closer to orgasm. My moans grew louder and my breathing quickened. I knew I was going to cum, something I seldom did during intercourse, or any other time for that matter. “Baby, you are going to make your mommy cum again tonight... baby, fuck me... faster!” With my feet high over his shoulders, Robert gave me everything he had, which was all I could take, with every pounding thrust. With each thrust, I felt his balls slap against my upturned ass, and his thighs made a loud smacking sound against me. I was moaning loudly now, encouraging him to fuck me hard, to drive me to orgasm. "Oh god, baby... fuck me... fuck me hard... you're going to make me cum!" I was almost screaming now as I felt my orgasm approaching. I spread myself as wide as I could, taking all of him. I came, and I came. My orgasm, my upward movements to meet each of his thrusts, and my incoherent moans pushed Robert over the edge as well. He buried himself deep in my womb and my baby released his seed inside me. I lay there, pinned underneath my stepson, panting, ...