Is it a fetish?!?

Ok ever since I was really little I've had an OBSESSION with fluffy tails I used to put on a unicorn suit so I could cuddle the tail I am now 13 and I have my first boyfriend who I really like so I want to know if this tail thing is a fetish or not I will tie a scarf under my shirt to have a tail and when I saw tails of dead animals at the fair I almost died cuz I wanted one so bad and I hate dead stuff I just really want to know if it's a problem