I was on the verge of climax, but something was stopping me from crossing the lineto orgasm. I could notmake myself climax while Robert watched. I thi...k I knew I should not be doingthis, and my remaining conscience served as a barrier to my climax. But I remained right on the edge.Our breathing began to synchronize and became faster, deeper and more labored. I could tell Robertwas approaching orgasm. I wanted to witness it. I wanted to experience my stepson’s climax.Suddenly, his loins. Her visits became so common we teased her about paying rent, then one day she offered to take us up on the offer until she could find a permanent place of her own. I recall that milk production rose sharply in our household, much to my delight. You both had to buy new bras after a few weeks, and I now came home for "lunch with Sam" several times a week.As I pull into the driveway, I can hardly contain myself. Tonight we are crossing a new threshold with your "lactation client," as we teasingly. "Only with him," I assure her, my voice ceasing its aggressive tone. "Well good. There's no need to be mad now. We'll find your sister," Rachel assures me, touching my wrist softly. My mission to find my sister is beginning to loose focus. This quickly comes back into focus once I hear someone call my name and by someone I mean my sister. "Allison?" I call back and my name comes back in return. I sprint towards the direction and find my sister, blindfold in hand and her eyes a little puffy as. Softly, softly whispering..."Are you ready, Ben? Ready to fuck your first pussy?" Oh Jane...." was all I could say. She reached down between us and gripped my cock tightly in her fist. Moved me so that I was at the opening of her pussy and then let go."Fuck me, Ben. Push your cock in." I moved my hips and my cock went into her wonderful cunt. It felt like velvet. I could feel her squeezing her vaginal walls around my cock. She reached behind me and grabbed my ass in her hands, pulling me deeper.