Swallowing cum is one sign of a great cocksucker. One who not only gets cum in her mouth but also swallows it later. They can sometimes play with it before swallowing, adding an extra naughtiness to the act itself.

Cum swallowing is also great for public blowjobs when you don’t want to get cum all over her clothes, hair, or face. It’s the perfect ending for a blowjob, where no evidence from it is left. Just happy memories.