I entered a co-ed school this year, and there were only three guys, including me. There was zero male presence, and even when we were changing for gym class, they were completely defenseless! It was like a heaven where you could see panties as much as you wanted! But it wasn't all good. I had to try hard to hide my erection every day...I was finally found out, but a classmate who was curious about my dick got horny, which led to a lucky development!