Pearl Necklace By Leah Piepgras

According to wikipedia, a pearl necklace is a slang term referring to a sexual act in which a man ejaculates semen on or near the neck, chest or breast another person. It can be done following mammary intercourse or oral sex. The result is said by some to look like a necklace pearls because the stringy translucent white drops semen that are deposited there.
It is one the activities that prostitutes use as safe sex alternatives for clients who refuse to wear a condom. One prostitute explained to a researcher that it's because mammary intercourse with a big-breasted woman feels like penetrative sex to the man.