My foot fetish developed far earlier than my tickling fetish. I started asking female babysitters to smell their feet when I was about five. Most thought I was a silly kid, so they said yes.
My tickling fetish gradually developed through articles I read in magazines, in my teens, and I didnt realize it was an actual fetish, until I started writing to my pen pal Don. I was 27 then.
In fact, unless it happened and I just wasn't paying attention, I dont even recall tickling a girl's feet, or seeing a girl get tickled, until I was 12 or 13. One of those summers, we had two nineteen year old couneslors, Christine and Adina. Whenever the guys in our bunk would see these two girls barefoot, either at a cookout, or swimming, we would start to tickle their feet. Adina was mega ticklish, and went ballistic, while Christine might not have been as ticklish, but used to wiggle and flex her toes, and laugh a lot as well.
Female feet have been an interest of mine since my age of reason. Tickling, of feet, or otherwise, came much, much later.
Mitch