Yeah, when I was a baby lesbian I tried that with a woman because my guy friends told me it was the thing to do. She stopped me at D or E and was like, "are you doing the alphabet?" I was mortified and never tried that shit again lol.
I learned early on to just pay attention to what she's doing to help guide me. I don't usually need a woman to verbalize what she wants me to do orally (but if she does I'm all ears lol). I always start slow and deliberate, and listen to her breathing, feel the way her body moves, and go with the flow. Don't expect her to start off at 8 or 10. Realize she's probably at 1-3 and it's your job to get her higher. I'm not saying I'm some "pussy whisperer" but it's really just not hard. I've been with bi women who start off saying they don't like oral sex but usually it comes out that the guys they've been with just sucked so bad at it that they ended up thinking oral wasn't any fun. Like they don't realize it takes finesse and they dive in like that watermelon eating gif right from the get. You got to work up to that shit, especially if you're a dude with any amount of stubble.
That woman I mentioned in the beginning of my post had only been with men until me. One day, after being together for a couple of years, she started laughing and said she just realized that she only sometimes had orgasms with men but came every single time we had sex. I wasn't even all that great but was still kind of surprised that her past lovers hadn't been able to make her come.