Great thread! Thanks for all the stories, everyone!
My first memory of having some kind of fetish was my first grade teacher. This would have been 1983-84. She had hurt her ankle and was wearing red socks with white tennis shoes which I think were New Balance. I have a memory of her elevating her foot on the table we were all working on which was pretty low to the ground being first grade. Looking back now, I can't imagine she actually put her foot up on that table, maybe she just had it elevated to the side? That was the beginning of my sock fetish. Later my friend's mom would wear different colored socks with shorts that matched her shirt. The first time I remember jerking off was when I saw her wearing black socks with Reebok princess shoes and a tight top that really showed off her breasts. After seeing it I went home to the bathroom and took care of things for the first of many, many times while thinking about her! She had a different color pair of socks for all of her outfits and would drive us home sometimes so I always tried to maneuver so I was in the back passenger seat so I'd have a good view of her socks on the ride home. She would sit with her left leg up against the door and her left foot almost under her so I could see both pairs of socks. Drove me crazy!
My Tretorn fetish probably started around 5th grade or so a few years later. Tretorns seemed to be worn by every other girl and woman you would see back then! A girl I had a major crush on would wear them and one time I remember she, too, had hurt her ankle. It was the end of the day and we were sitting in class waiting for our buses to be called and she had her foot elevated on the chair next to her. I remember her talking to the teacher about her injury and I could not stop staring at her Tretorns!
Like someone else said it's really fascinating to think about how these things happen. You'd think I would be into New Balance or Reeboks since those were there too when the sock fetish hit, but socks really got imprinted on me and then Tretorns made their mark. To this day, both socks and Tretorns continue to make me super horny! I guess I'm stuck with it. Thanks for reading!