Is it normal to have a specific fetish?

I fantasise about a guy slitting my throat during sex

Mine is three chavs pin me down on a bed abuse me to their satisfaction then they force me into the shower and pee all over me.

I like to be sort of passively made fun of by girls. Where she's friendly, cute, bubbly-- but just cannot stop laughing at me and never misses an oportunity to happily chirp emasculating little snarks wherever they might fit into a conversation. The kind of girl that wouldn't go out of her way to get you beaten up-- but would find you getting beaten up hilarious if she ever saw it. She might even take pictures. She wouldn't go out of her way to spread those pictures around-- but she'd give them to anyone who asked. The type of girl that will give you a semi genuine apology-- through tears of laughter.

I wouldn't hardly call that a fetish.

My wife and I love peeing in diapers. That's a fetish.

No matter what the fetish, if it turns you on and gets you off it has to be good

I have an armpit fetish and like to be sexually used like a male whore.

No fetish I’d abnormal. ‘69 ing with a partner of the same height is more convenient, especially if you’re a male into other males.