I weirdly love the smell of fish food and meaty dog treats.
Thats weird! Do you know someone who smells like these?
Yes, my stepsister smells like salty fish cake mixed with ham.
I know it can be tempting to point out people's faults, like body odor or whatever. But would you want someone making fun of something about you that you can't control? Live and let live.
I'd rather tell her she smells amazing instead.
Telling someone you're attracted to their strange smell can be a put off. They might become offended and may want to steer clear of you.