“Oh, God,” I groaned, grabbing for my cock. I couldn’t help it.

“Let me see, too.” She nodded toward the hand kneading my boxers. I flushed, but I pulled them down, my erection springing free, and I couldn’t help noticing how it was aiming directly at my sister’s glistening cunt. I watched her hand move between her legs, rubbing her clit.

I knew it was a clit, I just hadn’t ever seen a real one before. I’d seen pictures, up close pictures even, but this was entirely different from looking at a magazine, and my cock knew it. It was leading me toward the table as I watched her rub herself. She breathed harder, her eyes half closed, her feet up on the table and her legs spread wide.

“Dawnie,” I whispered, nearing the edge of the table and looking down at her. “I want to look at it.”

She smiled, using both hands and reaching down to open herself up for me. Oh, God, it was just like in the picture, only this was real. I bent down to take a peep, my eyes caressing the delicate folds and creases of her, dipping down to that lovely dark hole, where I felt like if I stared long enough, I could just get lost. I realised I could smell her. This was the smell of cunt! Tangy, a little musky. I could actually feel the heat of it against my face.

“I’m so randy,” she murmured, slipping one of her fingers into the hole as I watched. That’s where my cock would go, I thought, and it jumped in my hand as if to say, “Hell yes! Come on, man!” I stood, swallowing hard. So quiet, it was almost a sigh, she said, “I’m just going to rub myself off, ok?”

I nodded, watching her finger fuck herself, listening to the sloppy wet noises she made. My cock felt three times its normal size, like I could split the world open with it. As I began to pump it, I was actually surprised my hand could reach around it, that’s how huge it felt. Dawn was moaning, using one hand on her cunt, the other pulling and tugging at her nipples.