A few years back my wife, Susan, and I had planned a day at the beach with her first cousin, Bill, and his wife, Jan. We packed our coolers and spent the entire day having fun in the sun. Upon leaving the beach that afternoon we went to their house and all took turns in the shower. Later that evening after grilling hamburgers, we were playing cards at their dining table when suddenly Bill said, 'Fuck it, I'm bored. Let's play strip poker.' I chimed in and said I was all for it. We asked our wives if they would like to play. At first they said no. We dared them to play. Finally after much harassment on mine and Bill's part they went to the bedroom for a girl/girl conference. A few minutes later, with big smiles on their faces, they walked back into the room where we were sitting and to our complete surprise announced that they were ready to play strip poker. They did however have one condition. Their condition was that there would be no swapping partners nor any sexual contact between anyone except husband and wife. Bill and I agreed and the first hand was dealt. By the time that first hand was over, Jan and I were totally naked. Susan had on only her panties and Bill still had most of his clothes.
We played for the next couple of hours. By that point everyone of us had been totally naked at one time or another. I had noticed that Bill's cock was just as hard as mine. I had been leaking precum for some time. And, as I was to find out later, Susan and Jan both had wet pussies. We finally came up with an idea that would spice things up a little if they were not already spicy. Bill and I would play as partners and Susan and Jan would partner. The two losers would have to masturbate for the winners. Bill and I lost and had to sit there totally naked and masturbate while our wives watched. We jacked our cocks but stopped short of blowing our loads. The next hand Susan and Jan lost. We were sitting in the floor so Bill and I watched as Susan and Jan spread their legs and pussy lips and began playing with their pussies. Bill and I encouraged them to have orgasms because we knew they both could easily cum again. I could not help but stare at sparse blond hair around Jan's pussy, a remarkable contrast to Susan's thick black hair. I think Bill was just as fascinated at looking at his cousin's pussy. In fact I mentioned about him getting a hard-on looking at a family member's pussy. His comment was that his cock didn't know they were kin. It was amazing to watch how they masturbated. Both touched their clits but in a different way. Susan kept sticking two fingers inside her vagina where Jan just rubbed around the outside of her vagina. Susan came first followed closely by Jan. I almost came watching and listening to them moan and groan and seeing how wet their pussy and fingers were.
It was also exciting to look at Jan's body which is totally different from Susan. Susan is 5'9, long jet black hair, nice tan, very hairy pussy, 38D breasts and nice broad hips. Jan is just the opposite, 5'4, short blond hair, light complexion, very little hair around her pussy and small 34A tits. It's not to say that one is more beautiful of sexier looking than the other. It is the contrast between them that made it so sexy and exciting.
We discussed having intercourse or oral sex with our partners that night while the other couple watched but decided that we would just masturbate. As the night ended Susan and I watched as Bill masturbated Jan to another orgasm and then Jan masturbated Bill to finish, letting him shoot his cum all over her body. It was now our turn so I fingered Susan's pussy and rubbed her clit until she came. Susan then jacked me off until I was just about ready to cum. I then got between Susan's legs and jacked my cock until I shot cum all over her black pubic hair, something that I have always enjoyed doing. Of course this was all done with Bill and Jan watching.
The four of us got together about twice a month over the next two to three years and always ended up masturbating for each other. There were a couple of times when we had oral sex or intercourse with our partners while the other couple watched, but for the most part it was masturbation fun that we enjoyed. It was great fun and no one got hurt. I never touched Jan nor did Bill ever touch Susan. We all did a lot of looking, however. I can tell you one thing. If you think it's hot masturbating in front of your spouse, or having your spouse masturbate in front of you, try doing it in front of another couple. That is the ultimate turn on when it comes to masturbation.