My wife and I invite a couple over for BBQ, drinks and hot tubbing. Let's call them Jim and Susie. The secret is that I know that they are swingers, and she is Bi, but my wife doesn't know about their lifestyle. The hot tub is ready and waiting while we have dinner and crack open a bottle of wine. After dinner settles, we all get into our suits and head for the hot tub in the back yard. I always have the privacy screens lowered, because the wife and I like to hot tub naked. We all climb in, and the hot water is nice and relaxing. Add into it the wine and blue lights in the tub and in the gazebo, and we are soon well relaxed and sipping wine.
Susie asks if she can take her top off, and the wife is relaxed enough to say it's fine with her if Jim doesn't mind. In a flash her top is gone and her 40DD's are floating free. Susie immediately starts in on the wife, encouraging her to take her top off too. The wife looks at me, and of course, I say that I don't mind. So off comes her top, letting her 42DD's out for our viewing pleasure. Jim and I both compliment the ladies on their nice breasts, and they are pleased. It doesn't take long for Susie to start in on us guys, saying that we need to take something off too...and the wife is tipsy enough to encourage us too. So off come our shorts. Ahhh...the freedom of being naked in the hot tub! The hot water has us relaxed and our cocks are bobbing freely, and we notice both ladies noticing us! Now it is our turn to encourage them...I mean after all, we are totally naked and it just isn't fair if they aren't too!
Susie stands up, turns her butt to Jim and slowly pulls her bottoms down, bending over so that her butt is in his face, and her face is right in front of my wife's, close enough to kiss her, so she gives her a friendly kiss on the cheek. She flips her bottoms out of the tub and slowly sits back down, so my wife can take hers off. My wife stands and removes hers, and tosses them in my face laughing. As she turns to sit down, she loses balance and falls towards Susie. Susie grabs the first thing to support her, and ends up with both hands full of boobs. They are face to face and Susie leans forward slightly and kisses her on the lips...a tender, light kiss at first, and when my wife doesn't pull away, she parts her lips and a full on passionate kiss ensues.