One of my points of pride is actually using my teeth. A light scrape or nibble dramatically increases tactile sensitivity and emotional intensity. If you know how to simultaneously integrate the tongue and lips properly you can really leverage that “crazy girl sex” that drives dudes fucking nuts. I may have had years of therapy but there’s a few holdovers just because crazy girls do it better. The other big thing is gregariousness because once you learn to use it with real day-to-day support and respect for people it just magnifies it.