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was incredible! I've never ever come like that. You've sure got something with my ass. It's still tingly. You licked it raw, baby."
    Shifting my weight, I pulled her up alongside me so that I could palm one of her sopping ass-cheeks. The skin between her globes felt sticky and wet and slimy as I dragged my fingers across her soft skin. "Can I suck it some more?"
    Her eyes closed wearily and she sighed. "Coop, Daddy, I can't come anymore tonight. You've got me off like three, four times now. This pussy and ass have to rest." Laughing, she pressed her head back onto my chest.
    I closed my eyes and concentrated on the feeling of her breathing against me. I thought back to the time I first saw her, in class, those short weeks ago at the beginning of the semester. How could I have known that all of this would happen? Obviously, I'd wanted it. I'd been hopeful. But flirting is one issue. This beautiful thing was something else entirely. On that first day in the bathroom when I jacked myself off, the only image in my mind was that of Sonia. Since then, I'd thought of painfully little else--certainly of no one else. There was work and there was this gorgeous woman. Nothing else. There was nothing else, and even if there had been, it wouldn't have mattered.
    But, suddenly, a voice, possibly of reason, possibly simply of doubt, struck out from some distant section of my brain: What the hell am I doing? I'm almost old enough to be her father, or close to it anyway. She's my student; I'm her professor. I shouldn't be doing this. But as she rolled slightly into me on the floor, running her fingers along my stomach while pressing her sweet body into mine, those thoughts vanished. I squeezed her lovingly and breathed in deeply the scent of our sex.
    My fingers explored her nether reaches again, playing in the sticky patch between her cheeks. For some reason, I couldn't get away from that part of her body. No matter where else I played along her body, I'd find myself returning to her ass. It fascinated me--transfixed me. It was something beyond sexual, but there was most certainly a sexual element to it. But what difference does it make why I'm obsessed with her ass? The point was that here we were, here was her ass. The sensation of my fingers in our mutual fluids persuaded my cock to once again rise.
    "I'm sorry, Sonia," I said.
    "What?" she asked drowsily.
    I rolled away from her slightly, allowing her to glide off of me and slip fully onto the floor, where she rested idly on her stomach. I maneuvered quickly behind her, before she could protest, and dropped my face into her ass.
    "Shit, honey, no more," she protested half-heartedly. But just as she spoke the words, she eased her buttocks off the floor, arching herself back into my face.
    I lapped and sucked and nuzzled at her musky holes well into the evening, losing count of the ebb and flow of Sonia's pleasure. Or of my own. At some point, adequately satiated, I managed to carry her through the house and lower her into my bed. She was exhausted, and so drunk with lust and post-coital glow that she seemed unaware of where she was. I chose not to dress her. I simply laid her down on the bed where we fell asleep, naked, in each other's arms.

    "So how did you know?" I asked Sonia as my fingers drifted through her coarse, straight hair. "When did you know?"
    She lay at my side, her head once again on my chest. Faint ribbons of morning sunlight filtered through the blinds and cast diagonal bars across our bodies. The comforter was pushed into a long fluffy cylinder at the foot of my bed. Our naked bodies were damp and earthy from the warm Florida climate, hot even at this early hour.
    She looked up into my eyes as a sly, seductive smile stole across her face. She looked angelic. "The first day of class, Coop."
    "Yeah?" I ran my fingers back up through her hair and down along her cheekbones. "How?"
    "Are you serious?"
    "Yeah. How could you possibly have known? Was I that obvious?"
    She sat up