Most people who give blowjobs have a routine down; they either spit or swallow the cum, and they know when they to mix it up. Since about two thirds of adults practice oral sex, the question comes up quite often. Some people think asking a woman to swallow is sexist, and that it asserts male dominance in an overly extreme way. But dominance might be play for some people, and many women like the sensation of swallowing. Others think spitting is showing rejection, and whatever the case might be for you and your partner, we have to respect people's preferences. Find related topics here: Oral Sex, Quickies, Cocks
A cum shot (sometimes called facials) is called this for obvious reasons in the porn industry. This is the scene, usually the end shot, where a man ejaculates on his partner's face. Lots of porno films like to feature men’s orgasms in this way. He pulls out just before cuming and jizzes onto the face of his partner. But not every time, sometimes cum shots include an open mouth, onto a foot, chest, abdomen, ass, or genitalia.