By now, Amy's hips rocked hard. Her ass rose up and down as it bounced harder upon me. I could hear the sweet sounds of her soft cheeks as they slappe...d upon my thighs with each thrust down. I could feel my balls bounce, they leaped up and slapped her ass over and over."Oh my God. I wanna cum so hard on your hard throbbing cock!" Amy screamed out."I'm close baby!" I responded. My balls were starting to tighten. I could feel the rush of blood pumping into my throbbing hard cock. Her pussy. "Got a hard-on then?" I didn't answer so she reached across. "Yes. Yum. A nice one coming on." I stiffened more.She dropped her hand between her thighs and began to rub herself. Her skirt was now up to the top and I could see her hand rubbing the sky-blue nylon."Turn left up the common. Lets park up" I obeyed.We parked, she slipped her coat on and we took a short walk to get a bit of privacy. She leant up shoulders against a tree hips forwards. She undid her coat and I slipped my hands around. This time, I joined a pretty well known swinging website and reached out to countless couples who might be interested in a threesome. As always, it was difficult to find a match. I had some great conversations but nothing materialized. It was getting to be very frustrating.Finally, on a hot summer afternoon, a couple sent me a phone number, which is always a promising sign, and we began to text back and forth. The two of them had a house, not terribly far from me and they wanted to have a. Her olive skin, long legs, full breasts with their light pink areola and eraser sized nipples created an immediate stirring in my shorts. I glanced over at Julie, her breathing had quickened and those nipples I love sucking on were pushing out against her t-shirt.“If it would be okay with you, we’d like you to start by the middle of next week. That will give you time to put your affairs together.” I said as Julie began to stand with me close behind.“That is very generous, I’m looking forward to.