It's not fundamentally different to any other genre, that action is a particular thing. Being able to do action sounds like it should be straightforward, but it really isn't. I always want the action to be witty. I don't want it to be merely routine.
Her lips touched his brain as they touched his lips, as though they were a vehicle of some vague speech and between them he felt an unknown and timid preasure, darker than the swoon of sin, softer than sound or odor.