To quote one woman: "What sort of message does that convey to immediately run to the nearest sink to spit? I’m comfortable enough to get down on my knees and wrap my lips around your cock, but not comfortable enough to swallow the fruits of my labor? I know I’d be offended if my boyfriend ran to the bathroom to gargle with mouthwash after going down on me. So, sure I swallow. It’s almost impolite not to."