So this was my brother when we were younger. The thing is - mine is 5 years younger than me! He would walk around naked in front of them. Gross thing is, when I was in college (about 21), some of them actually had crushes on him! He always had girls lined up, still does. He's 40 now and when he separated from his fiance for 3 months, the 20 something girls were asking him out.
When he was in high school, he'd make girls sit on the porch while he played video games in the house. They'd sit there for hours waiting for him. I'd come home and they'd be sitting there.