I just saw a post on another forum where someone mentioned getting turned on when they climbed a pole in a playground as a kid. I remember the same. Wonderful tickle. I actually did that whenever possible as a teen. Did it once at night naked and had a really REALLY great orgasm. Just held on to that pole until I finished pumping. I don't think I've cum that hard since, although just remembering that, I now have a nice boner.