Buying clothing for a specific fetish?

I've mentioned it on here before, but I have this weird fetish for women in large crewneck sweatshirts. I like it even more when there's a lot of graphics and big letters on there (I guess because it makes it more unique?) It has a sort of a preppy/athletic look, the way I explain it to people as to why it gets me off is it is like a casual fur coat on a woman.

Anyways, I was at a vintage shop and I bought one that has the name of the closest university in big letters on it. I never even went to that school as I attended somewhere outside the state. I only bought it for the reason of having some girl wear it during foreplay/sex, being completely naked except for wearing that. Is that a little strange?