You really need to say “no” to things that turn you off. Having boundaries does not, by itself, make you selfish. And not everyone likes oral.
Now, if what you actually desire is someone who will put significant time and attention into your pleasure, with no consideration for theirs, that probably Read more… *is* selfish. It’s still not wrong to want what you want, and there will be people out there for you, but they are not a dime a dozen. Many people want relationships that are more equal than that.