I found Sunday School Intermediates class to be sexy. Girls were just starting to bud.
I’ll do you one better.
I lived hear a Catholic high-school where the student body was 8:1 female. Everyone wore uniforms.
I was friends with 2 male students who happened to go there. One of them had a mom who worked in the school office.
One year after all the girls had lined-up to be measured for their school uniforms, he cooked-up some excuse to go to the office to talk to his mom, and pilfered a copy of the list of their measurements while he was there.
That got photocopied hundreds and hundreds of times. The top underground publication in the neighborhood that year. Every guy had a copy.