She slid the hem of her denim mini-skirt a few inches higher on her legs to give the older woman a more lurid view of her silky young pussy as she par...ted her thighs.Rebecca couldn't resist the sultry invitation from the seventeen- year-old. Running her hand into Trish's humid crotch, she played her fingers into the girl's frothy slit, covering them with a thin coating of teenage fuck grease. Pulling her fingers to her mouth and sucking openly on them, Rebecca hummed out loud."Is my cunt-honey. I started fucking her pussy with my finger as she moaned louder and louder. She kept screaming don't stop lover please don't stop am almost there. I put in one more finger and she screamed and clawed my back within seconds her body jerked and she almost went limp in my arms. She slowly slid down on her knees and looked up at me with a Monalisa smile. She pulled me down with her on the floor as she gave me a hug andstarted kissing me. She looked at my cock and slowly she took it in to her mouth. He was speechless, trying to concentrate on not cumming. She bent forward almost laying down between his legs, her ass raised in the air and back down on his dick over and over. He reached forward with both grabbing a firm grip on her ass. It shook and twitched between his hands. He pushed it up and down, then gave it a hard slap. It jiggled as he slapped it. "She might beat me in the boob department, but she could never beat me in riding a dick," she said as she rode him harder. He felt like. "To suppress my unease, I asked, "How else do you study people.?"For a moment her eyes looked around the lounge. Looking for better company? I wondered. "I'm particularly interested in how partners come together. I'm fascinated by the way men and women select each other. It's not always a physical attraction." Those blue eyes locked on mine before she went on, "But I think it's important."Her tone was so avid that I struggled to find something to say, finally managing, "And people are willing.