Sensuality is part and parcel of a human being and shows itself in becoming attached and reacting to what one sees, hears, smells, tastes, touches and thinks. One is concerned with what one feels and has not yet come to the understanding that the sense objects are only impermanent phenomena arising and passing away. When this lack of profound insight is still prevalent, one ascribes importance to the impressions which come in through the senses. One is drawn to them and seeks pleasure in them. When the senses are still playing an important part in a person, there is sensuality.
Man is a sensuous being.
In many a sutta the Buddha said that getting rid of sense desire is the way to Nibbana . Sensuality as an ingrained part of being human has to be transcended with great effort and cannot be done without insight. One has to gain the insight that these sense contacts have no intrinsic value in themselves. That's all that's happening. As long as one reacts to these contacts as if they had importance, there is sensuality.