We live out in the country and have an inground pool in the back yard. Now that we're empty nesters we tend to be naked a lot. Early last summer wife and I were enjoying an early warm summer day naked out by the pool. We had some music on and she was floating naked on a raft in the pool. I went inside to make us some drinks and when I did I noticed the propane guy had showed up to fill our tank. He parked his truck out front of the garage and pulled the hose to the tank which is right behind the garage. The tank is up on a hill overlooking the pool which is outside our basement walk out door. I could see him from our kitchen window as he hooked the hose up to the tank. He was a young kid, probably a college student working a summer job. As he filled the tank he looked around and spotted my wife laying naked on her raft in the pool, boobs fully exposed. He ducked down behind some bushes and moved a little so he could get a better view. It was hot as hell seeing him looking at her, at one point he reached down and was rubbing his cock, obviously enjoying hat he was seeing. About the same time my wife jumped off the raft and walked over to the side of the pool where her drink was sitting. He was straining to see more as she stood there, her firm milf boobs fully exposed. She went back to the raft and laid on it face down, her sexy ass in the air. The kid finished filling the tank and went back to the truck, rolled up the hose and printed our ticket. As he walked up to our front door to leave the ticket I opened the door and greeted him. He was very surprised to see me, I could tell he was totally nervous. I noticed a good sized budge in his pants. I said hey, how's it going? He nervously said fine. I asked, did you ger her all filled up? He responded, um, ya. I said that he pool heater really sucks down the propane. He just said ya. As he walked away I said, I imagine we'll see you more this summer. Bet you look forward to that. He turned back and looked at me again but didn't say a word. He knew I knew he saw my wife naked. I told my wife about it and she was really turned on by it. I hoped he would have come back and had a similar event but we never saw him again, he must have come when we weren't home. Too bad, it would have been fun to invite him to join us!