I used to cycle every day and shower afterwards. At the same time, my wife had a friend who would come over every day just around the same time.

Well, my wife's friend would always position herself on a certain chair in the kitchen while I was in the shower, because my wife would often leave the bathroom door open because our exhaust fan didn't work, and I would have to come out of the shower, naked, to get to my towel. (I knew the friend was always there, but acted like I wasn't expecting her each time, to play along.)

My wife caught on to this eventually (I figured it out the very first time the friend did it), and would ask her friend to sit in the living room (while I was in the shower), but her friend refused.

So, one time, I came out of the shower and just stood and talked to the friend in the kitchen completely nude...the friend acted freaked out gathered her stuff, and left, and when my wife called her out on choosing the one chair in order to see me naked in the shower, the friend still denied it.

The friend eventually moved out of state and doesn't come by anymore, but my wife and I still tease her in email from time to time about still refusing to admit that she was watching for me on purpose all those months.

It would make sense, though, the friend was the "I am a super prude and only had sex one time to have one kid" type person, if you know the type.

My wife and I had been having naked outdoor sex behind a rock in the glorious Spanish warmth one afternoon. As we were putting our clothes back on we saw a youngish couple walking away, hand in hand, and she said to him " Te quiero, ya!!", which basically means "I want you, right now!!". We were certain that they had been watching us making love. I wish we'd known at the time, it would have made our lovemaking even better.