I only have one story that comes closest to the description of the OP. Years ago, my wife and I were renting a small apartment in a nice complex. One morning I happened to look out of the living room window and at that very moment, the blinds in the apartment just across from ours came up, and I was treated to a brief but nice view of our neighbour in just bra and knickers. Hot girl, blonde, pronounced curves, but fit and not at all fat. She didn't notice me, but immediately moved out of view, and a few seconds later the blinds came down. We didn't know her and her husband yet, but as chances are, we met them that very same day, and they turned out to be a very nice young couple. The husband was a bit workaholic, and she was staying home looking for a job. I never saw her again undressed, and we lost track of each other after a while.
I know, a bit tame, but it's all I have...