My wife and I have been married about ten years and have a healthy sex life. We still enjoy each other's bodies and pushing the edge of our sex life a little with things like fantasies and toys. But until the night of the block party we hadn't been very adventurous. I didn't realize I needed more than her attention and had never even considered that I would find myself enjoying the attention of another guy!
We pre-gamed with a couple shots before we wandered down to the block party with the neighbors and found ourselves drinking a little more than usual and at the end of the evening accepting an invitation to have a few more post party drinks at the hose of our neighbors Dave and Mary. They were another young couple that we enjoyed hanging out with and so this wasn't that out of the ordinary although I was drunker than normal. Dave and my wife sat on their outside deck by the pool and Mary grabbed my arm and said, "Come help me get the glasses and pick out some wine". As we went into their kitchen, Mary pushed me against the wall and started kissing me. She is quite attractive and in my drunk state I kissed her back and we made out for a few minutes. I guess I should have felt guilty but she felt good in my arms and my cock responded enthusiastically. She gave it a little squeeze through my pants, smiled and led me back outside as if nothing had happened.
We grabbed the wine and went outside, and Mary said, "Time for swimming!" She stripped off her clothes and jumped naked into the pool. Dave, my wife, and I looked each other shrugged, stripped down, and joined her. I had not seen another woman naked since I had got married and was enjoying this adventure.
We swam a bit and ended up leaning on the edge of the pool talking. Mary moved in front of my wife and started kissing her. I was surprised that my wife's reaction was to wrap her hands around her and kiss her back deeply. We stood there for a few minutes watching this amazing sexy show. Then Dave moved in behind his wife and started fucking her from behind as the woman kissed. I was so aroused I just stood there caressing my hard cock watching them. I could see my wife reach down and feel Dave's cock entering his wife and her eyes got a little wider.
This went on for a bit and then the trio broke apart. Dave took my wife's hand and said, "We are going inside, why don't you two stay out here and entertain each other." My wife and I exchanged glances that basically said "We've come this far. Let's see where it goes."
I forgot about Dave and my wife and turned my attention to Mary. We were both quite drunk and quickly returned to making out. However, this time we were naked, and I could feel her hard nipples against my chest and know she couldn't help but feel my cock pressed against her. I lifted her out of the pool and sat her down on the edge of the oil. I spread her legs and started licking her pussy. Pretty soon she grabbed the back of my head and pulled me tight against her and it pushed over the top and she had her first orgasm of the night.
She pulled me out of the pool, and we moved to one of the outdoor couches. I sat down and she sat down in my lap straddling my hard cock. We started making out and enjoyed the feeling of my cock deep inside her pussy. We made love slowly as we made out just enjoying the situation.
Then we were no longer alone. Dave had joined us. He had come back out of the house alone and was just watching us with his hand on his cock. He said, "Your wife passed out. I left her sleeping on the bed. We didn't do anything more than kiss but please continue. I can take care of myself."