i-ain't-afraid-of-no-ghost

My 2 year old son has discovered his penis. From time to time he will undo his diaper and do what little boys do. He mainly does it while watching cartoons but a good portion of the time he’ll do it while watching the all female Ghostbusters. What’s worrying about it is he tends to start when the ghosts come out. Is this the start of a fetish?

My son at 13 - “Oh look a marathon of ghost hunters!” *takes 3 hour long shower*