Deep-throating

Deep-throating is a sexual act in which a sexual partner takes their partner's entire erect penis deep into the sex partner's mouth, past the epiglottis and into the throat. The practice is a type of fellatio, a form of oral sex.For deep-throating, the penis has to be long enough so that it can reach the back of the partner's throat.The person whose penis is inserted is usually referred as the receiving partner, and the person who performs deep-throating is referred to as the giving partner.
It is difficult for most people to perform deep-throating, due to the natural gag reflex evoked when the soft palate is touched.Different people have different sensitivities to the reflex; with practice some people learn to suppress it.
Deep-throating leads to an entirely different kind of oral stimulation in comparison to regular fellatio, while the giving partner's tongue is immobilized during deep-throating and they are not able to suck;the receiver's glans penis is intensely stimulated by the tightness of the giving partner's throat.