Many years ago, I was stationed on a submarine undergoing overhaul in one of the very large shipyards on the east coast.
So here it was Christmas Eve and I had the Below Decks watch, which means that myself and the topside watch were the only people on the forward part of the boat. About an hour into the watch, a very pretty young lady from the cleaning shop, came down the ladder and told me she had orders to clean inside the radio room. Well because EVERYTHING is classified in there, I just couldn't let her in. Called the duty officer, he checked it out with the shipyard and gave me permission to let her in. But, I had to keep her insight at all times - easy for me because she was good looking. So each time I needed to make rounds and readings, she had to leave with me locking the door behind us.
Well after the first set of readings, I begin to notice that her blouse buttons seemed to be becoming undone. Now she had a nice set, so as a young horny sailor, it caused me to rise to the occasion. She noticed it too, because she claimed to be hot and with me watching, more buttons were loosened and more of those pretty young things, encased in a pale blue bra, begin to show. Well as you guessed this had a cause and effect thing going. The more she undid, the harder I got.