I suppose this is slightly off-topic because I'm a guy, but
My very first sexual experience as a teenager was with a girl with very prominant inner labia. In fact her inner lips were always very much outside of her outer labia. I was with her for years before I experienced anyone else, and it was much later that I realized how out of the ordinary she was in this regard. I have never encountered anyone else quite like her and still to this day I'll have the occasional dream featuring her luscious labia. She would bloom like a flower as her sexual excitement increased and her lips would fill my mouth when I sucked on them. After sex, she looked completely different from before sex. Her lips changed from being compacted together in a neat meaty row to splayed apart like a wet butterfly with the most elegant curves. I think my brain imprinted this vision as the definition of pure sexuality.
It always seemed to me that she very much enjoyed having her lips sucked and kissed and adored. She had strong sexual drive and came easily and often. I'm sure fondling and kissing her labia added to her arousal, but orgasm always involved her clit.