the deluded morons above this post are totally wrong in fact it IS luke i am your father. he goes no luke i am your father watch the classic fucking movies. not the fucking bullshit new ones.
Vader: Obi Wan never told you what happened to your father.
Luke: He told me enough, he told me you killed him!
This is a vertical integrated sex act where one goes down on a vagen; once the subject is sufficiently moist a deep controlled burst of air is pushed through the vagina. The result moments later is masterful quef, where the reverberation of the labia expels a pleasurable sound and sprinkling of love juices.