The following events happened just a few years after my wife and I were married and helped open the doors to the many opportunities involving others in our sex life.
Working in retail, I often had a day off during the week. I came to appreciate the benefits of this, one of which was that going for a hike or to the lake meant the amount of other people was greatly reduced. Given my wife's proclivity to remove some, or all of her clothes, in places one normally wouldn't, was a huge turn-on for both of us.
One Wednesday afternoon we had planned an afternoon on the lake. We had recently purchased a used boat that had room for four and enough power to pull a water skier. After breakfast I went outside to hook up the boat and make sure we had everything we needed for the day. I was just about done when Lisa came out and asked, "Hey babe, I just got off the phone with Nancy and she is free today. Is it okay if she joins us?"
Her friend Nancy is really cute and the thought of seeing her in a bikini had me salivating as I replied, "Of course it's okay, now we have a spotter if I decide to ski." We always carry a couple extra PFD's (personal flotation device) for caution. I took a quick glance to verify that and when Nancy arrived we were all but ready to depart. The ladies went to the bedroom to get ready while I loaded the ice chest. Lisa knows I think her friend is hot, and sometimes teases me about it. She told me once Nancy had said she thinks I'm cute. Lisa and I are secure in our relationship and she knows I wouldn't do anything untoward.
We all three piled in our Jeep Cherokee for the short drive to the lake. Upon arrival there were only four boat trailers in the parking area, a good sign that we would have much of the lake to ourselves. We launched, loaded, and disembarked in short order, and were soon under way. The women removed their pull-over tees, and shorts, revealing two nice bodies covered only in small bikinis. I had stopped the boat and got out of my shirt and shorts, having donned my swim suit before leaving. Seeing two hot babes in bikinis had me partially engorged, something that wasn't lost on either of them. Nancy whispered something to Lisa and both girls broke out in smiles. Neither of them were interested in skiing but since I was I prepared to ski. Lisa briefly explained to Nancy the nuances of being the flagger when a skier is being towed. I had two good pulls before taking a break, and then Lisa mentioned an area further up the reservoir she wanted to check out.
This area was a little more secluded and Lisa said they wanted to work on their tans. "Are you gonna go topless?" I asked without even thinking about it.
"You'd like that wouldn't you Jeff?" Nancy replied.
"Well yeah, what guy wouldn't?" I answered. I helped the girls raise the rear seat cushions to the upper position, creating a sun bed spanning the width of the boat. Watching both of them apply tanning oil to their nearly naked bodies was driving me nuts. Nancy stretched out on her front, untied her top and laid down.
After a couple minutes she raised up enough to wink at Lisa and said, "Jeff would you be a dear and put some oil on my back?" as she handed me the oil. I looked at Lisa as I took the oil, she was smiling and winked at me. There I was, in just a Speedo, applying oil to the nearly nude hot friend of my wife. When I reached the top of her tiny bottom piece she said, "Be sure and do my legs too, would you please?" As I was doing this she parted her legs and said, "Don't forget the inside Jeff."
By the time I finished with the oil my cock was straining against the material of my suit. As I turned towards Lisa she immediately noticed and said with a chuckle, "Oh my Jeff, did you enjoy that?"? Nancy look what you've done to my poor husband."
At this Nancy turned her head my direction, raised up on her elbows enough I caught a glimpse of her nipples and looked straight at my barely concealed erection. "Oh my Jeff! Is that swim suit padded?" She asked with a smile. "That certainly looks like more of a mouthful than my last boyfriend."
"It's the real thing, go ahead honey, show her!" Lisa said with an evil grin. I glanced around, there was nobody within a quarter mile, and I pulled my suit away and down. There I stood, fully exposed, and pointing straight up. Lisa was watching her friends reaction as she said, "See Nancy, I told you he has a nice one."
"You weren't lying Lisa, you're a lucky woman. That looks delicious!" Nancy licked her bottom lip as she said that, and couldn't seem to stop staring.
"Play your cards right and maybe one day we can share him." Lisa replied. Begrudgingly I pulled my swimsuit back in place and opened a beer. I kicked back in the swivel mounted chair at the helm and enjoyed the view, both in the boat and the surrounding area. After a half hour or so Lisa asked, "Can we go for a little cruise, show Nancy some more of the lake?"