Every Summer I was sent to the same camp, and as you got older you moved up levels and slept in different cabins.

For some reason due to fucked up reservations a bunch of the boys got put in a girl cabin (too many boys to fit in their own, not enough girls that year?) the problem being that the cabins had big open windows and we changed in them. They solved this by hanging towels up over the windows so we couldn't peek. However I'd brought my telescope from home and discovered from where we were, out the back window I could see into the camp shower (like the pic) at a pretty steep angle. Whoever laid the place out assumed only girls would camp in that area so it didn't matter but the counselors forgot about the visibility of the shower. I kept it to myself being the oldest of the boys, they weren't yet interested in girls that way.

So for the entire Summer during the mornings and evenings I got an eyeful. Only the furthest stalls were fully visible, in the rest you could only see their upper bodies and in the nearest only the upper bodies of adults. So I saw a fair few girls my own age in the buff, and every adult counselor, either fully nude or nude from the waist up. Two of them had lovely big tits. One was fat, I'd stop watching if only she was visible. It was the best sexual awakening I could ask for and to this day remains my primary fetish. Seeing the female counselors smile and talk to me, clueless that I'd seen their tits an hour prior was an absolute thrill and over the course of the two weeks I got to see almost every girl my own age wet and naked. Nothing in my life since then has topped it.