Definition
To perform oral sex, typically referring to either cunnilingus performed on a woman or fellatio performed on a man.
口交
During their intimate moment, he offered to give her head.
在他們的親密時刻，他主動提出要為她口交。
She enjoys the sensation when he gives her head.
她很享受他為她口交時的感覺。
In their sexual relationship, giving head is one way they express affection.
在他們的性關係中，為對方口交是他們表達愛意的方式之一。