OCD guilt affecting shame of sexual fantasies

So I've got a few really weird fetishes which I'm not proud of. I think they mostly came from childhood shows or whatever but they're harmless and dumb and probably not as bad as my brain is making them out to be but I still feel very guilty for feeling that way about them. Don't get me wrong I can control myself and they aren't taking over my life I just don't know how to see it being ok even though it's human nature to be attracted to certain things and now my OCD is amplifying my guilt and making me feel like I have to confess which I would prefer not to do since my mom is usually who I confess to,,,,
Can someone please help me put my mind to ease?