In a dream, to perform fellatio on someone is usually a signal of affection or love. If you experience fellatio in your dream this could represent sensual desires or temptations, as well as the desire for nourishment and satisfaction of hunger.
The sensation of fellatio is also often associated with sexual arousal or contact with the genitals, even if such contact did not actually happen during the dream.
A person who dreams about licking might be struggling with an addiction to substances such as alcohol or drugs that are associated with oral consumption. Also, a person who dreams about being receiving fellatio from others may be feeling vulnerable and seeks comfort from those around them because they lack self-confidence in themselves.