Here's another opinion from an "older" guy.

A few years ago I went in the bathroom/locker room/changing area at a water park in Gulf Shores, Alabama. The showers were in plain view of anyone once inside the door. There was a cute red-headed teenager taking a shower sporting a big boner. I never saw him touch himself but to this day wonder if he was doing it deliberately to attract attention. I don't think he was over 19 so I sure would not have moved in on him. The image of that day still remain in my mind. Some red-heads are another turn on for me.
(I use to fanticize over "Ben" in the Waltons. LOL)