Is it normal that i had my cat lick my nipple when i was younger?

About 10 years ago, when I was in my early-mid teenage years, I had my cat lick one of my nipples out of curiosity.

I had just gotten out of the shower and sat down on my bed. My cat hopped next to me and started licking the water off me. I purposely shifted my body slightly and it ended up licking my nipple. Felt terrible afterwards, never did it again. Never thought of it again either.

I can't really remember why I did this. I think I was curious about the sensation. I had read in romance novels that women loved getting their nipples licked, and wondered how it felt. Either that or I just wanted to see if the cat would do it.

But, I very feel guilty and can't seem to get it out of my head.