The mouth is the most important part of our body.
We use it for survival. All food and drinks come through it. Our existence is dependent on our mouths.
We use it to express ourselves. All verbal communication happens through the mouth. A lot of non-verbal communication involves our lips and their positioning.
We use it for pleasure. The beautiful taste of food. The playfulness of kissing. The exhilarating experience of giving oral pleasure.
Women are far more likely to think of their mouths than men. Think about it - just the gesture of putting lipstick on requires intent.
I believe that’s also reflected in the male vs female attitude towards oral sex…