In the mean time Patty had been a little more aggressive with Pat. They were locked in a kiss, as we were, but she had removed his shirt and was working on unbuckling his pants. She jumped off his lap and pulled down his jeans but couldn't get them off as she had forgotten to take his shoes off. She stopped long enough to get his shoes and socks off and then pulled his jeans the rest of the way off. Her hand immediately went into the top of his shorts and pulled out his hard cock. He was slightly longer and a little bigger around then I am. He was profusely leaking pre come, which she rubbed over the head of his penis before taking it into her mouth. I heard him moan and saw him put his hand on the back of her head to hold her in place. She was giving him one of her best blowjobs as I could see her cheeks become concave with suction and her tongue circling the head of his cock. At this point she was moaning almost as loudly as he was.
Julie had unzipped my pants and had hauled out my equipment and was stroking it as she watched her sister give her husband head. I continued to roll her nipples on one breast as I began to suck on her other. She was stroking my cock and was getting much more heated. She jumped off my lap and before I knew what was happening had me stripped naked. She sat back on to my lap facing away from me and slid so that my cock was between her legs. I just knew that we were going to start fucking but she didn't slid me into her but instead pulled my hard on so the I in between labia and nudging against her clit. I reached around her and began to roll both nipples between my thumbs and forefingers as she held me between her labia and moved up and down. I could feel the juices flowing from her cunt and down over the top of my member. I was sure she was going to shove me into he warm, tunnel at any time and boy did I want that.
Patty was continuing to suck on Pat and was playing with his balls. At this point I saw him tense up and empty a load of cum into her mouth. She seemed to savoir the taste and then swallowed it all. This was a surprise, as she had never allowed me to come in her mouth let alone swallow it. Pat then rolled her onto the floor and proceeded to French kiss her and then work his way down to mouth and maul her breasts, finally working over her belly and down to the juncture of her thighs. He began by kissing and licking the inside of her thighs and working his way to her knees and back to her pussy, there running his tongue across the folds of her flower. He continued this until you could see the juices running out of her as he consumed them. He was licking her entire crotch from her anus to her clit, stopping every now and then to dip his tongue into her pussy.
I moved Julie so she was lying on the floor next to her sister and I was between her legs and doing to her what her husband was doing to her sister. As I was slobbering over her cunt I slid two fingers into her, sliding my fingers along the top wall in search of that disc of harder flesh inside her pussy. Upon finding it I began to gently message it. Her breathing became ragged and soon she was screaming as her climax rushed over her. I started to finger Julie some more but she indicated that her clit and pussy were so tender after having reached a climax she cannot enjoy being touched for some time after. This kind of upset me because I felt like I was being left hanging.
Patty, in the mean time, was arching her back and pressing her juicy slit into Pat's mouth and had grabbed his ears and was pulling his face deeper into her crotch. He breathing was becoming labored and she was yelling "OH FUCK" over and over at the top of her lungs.
That left only me not having had some relief. Patty noticed what was happening and crawled out from under Pat and laid on top of me and gently slid my cock into her soaking wet cunt. I came with a roar after only a dozen or so strokes. We all were pretty well spent and we lay there and talked about what had just happened. Julie apologized for not being able to bring me off and they let it be known that they had been trading partners with three or four other couples for over a year. This lead to many questions from Patty and I as we had discussed this possibility several times. Julie and Pat indicated that what we had done tonight was "soft swinging" and that we needed to do some more discussing between the two of us before we considered going all the way with another couple.
Julie and Pat went off to our spare bedroom and we called a night and cleaned up some before going off to be ourselves. Patty and I again made slow passionate love and as we lay in the after glow talked about how we felt about what had happened. We discussed if we thought our marriage could stand up to each of us having sex with someone else and how much of a turn on it was to watch each other with someone else. We decided that we would like to try it but just with Julie and Pat to begin with.
The next morning as they were getting ready to leave for home we made a date with them for two weeks to go for a full swing.