A summer with my stepsister Mary, part 2

It seemed like it took forever for my Stepmom to leave, but when she finally did, we both looked at each other and Mary gave me the cutest grin, asking if I was ready to finish putting that lotion on. We went outside and she took her top off slowly, shyly, as if she was embarrassed by the small size of her tits. To me they looked like perfection, small, pointy, with tiny rose-colored nipples that stuck out. I told her that they were beautiful, at which she smiled a big smile and laid down on the chair, again on her stomach. I had wanted to touch them, but I had to force myself to wait.

She had brought out the lotion, and I put a bunch on my hands and started with her beautiful, creamy white thighs again. She immediately opened up her legs this time, stretching them across the chair and giving me a full, teasing view of her crotch, still covered by that damned bikini! I worked my way up quickly to her butt, rubbing one cheek in each hand and dropping my thumbs down between her legs to rub up inside her thighs and across her pussy lips. Getting bolder again, I let my thumbs go inside her bikini bottoms, feeling the lips, rubbing up and down. Meanwhile, my fingers had gotten up inside the rest of her bikini, with my right finger tracing the crack of her ass. I found the hole again, brushing past it a few times before finally rubbing right on it. It felt kind of moist, and as I rubbed, she pushed back against me, and I could feel the muscles of her asshole squeezing against the tip of my finger.

I had had about enough of that bikini, and I asked her if I could take it off.