The acronym COB normally means ‘cum on body’, that is to say, ejaculation on the body. The act usually happens through a hand-job, when the sex-worker jerks off the sex-client’s phallus on her hot body. This allows the sex-client to watch the hot female body undisturbed while enjoying manual sex-service. The spot of ejaculation can be the feet, the ass, and the breasts, so the B in the acronym can refer to the boobs as well.
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