Cassidy seemed to let go and didn’t resist when I pushed her down my shaft.“Hold me down,” she said, gasping for breath. “I need the practice....��With my right hand on her head, and my left pinching her nipples, she sucked my cock some more.I lifted her up, and we went out to the front room. Laying Cassidy on the couch, I told her, “I want to know if you taste as sweet as your mom.”Cassidy spread her legs and smiled. “I’ve never done this before.”I kissed her thighs, licking at her bikini bottoms.. Mom then bends over at the countertop and welcomes my dick into her pussy again. I look at her pink pussy, staring at it for a couple of seconds before inserting my hard dick in. I start my strokes nice and slow, and then increases speed with each thrust. Mom can’t help herself but moans out pleasure. “Ahhh… I hope we are not fucking too loud. Oh… god… forgive me, I’m such a bad mother for letting my son fuck me. Ahhh… I am so sorry, son…,” Mom said while moaning loudly. She repeats herself. .... This all came to a head a couple of weeks ago when she had begun to flirt more openly and I had been flirting back. We had both just finished our workouts and were heading out of the gym towards our respective changing rooms when she beckoned me to follow her into the ladies changing room! I didn’t need asking twice! I was in the changing room after her like a shot. She turned to me as I came through the door and began to kiss me, and it was the most intense and passionate kiss I had ever. “I would like that; maybe you can give me a ‘pearl necklace’; where you come all around the top of my chest.”I had never heard of that term before, but understood exactly what Jillian meant. I didn’t ask her how she knew of that term.“Now, you’ve distracted me from describing all the things I enjoy about making love,” I said. “Where was I ... that’s right, I was describing kissing and sucking nipples; let me get back to that.”I resumed sucking on her nipples; Jillian moaned softly and started.