Men will consider this a very exciting sexual activity that can bring high sexual excitement.
From a sensory point of view, the glans is the part with the densest nerve lines of the male sexual organ, which is always wrapped with the tongue.
Circle the glans, rub the ring ridges of the glans clockwise and counterclockwise, and add sucking and licking actions, which can bring great excitement.
From a visual point of view, when a man sees his partner "devouring" him, the sexual excitement will be doubled.