This is no blog for statistical research, we cant go for a yes no vote here.
However, I havenot seen much woman to like licking her partner's asshole. Not that I dont like, rather I love to give a rimming and I would love to get one, but I dont like any force sex. Even on experimentation, I dont force for that.
Its a bit kinky, and kinkyness can be taught, but should not. The knack of kinkiness comes from within ownsef. At some point of time, I was a bi, and would love to get rimming as well as give. These days as I am straight, I love giving a rim job, with or without an expectation of an analsex. But usual cases, giving a good rimming job makes sure I will hit the jackpot.
Anyway, I dont think much woman sponteneously will go for a blowjob, giving some encouragement she will. A lot of woman feels a head job is dirty, later thy love it. Even give a rimming job, they might feel nasty, still would love to get. But give a rimming job on their own, thats a quite hard luck you are thinking of. It will create hyegenic problem if not cleaned properly, and you cant teach one to be kinky. But if she is well aware of sex experience, my hunch is, when you ask her to give a rimming job to you, the first thing she will know you are a bottom on your own. Thats for sure.