Top Definition
A Serbian Milkshake is a sexual position that involves a threesome: 2 girls and 1 guy. The guy and one of the girls both cum into the other girl's mouth at the same time while he mixes it around in her mouth with his cock.
John and Kate enjoy a romantic anniversary dinner while

Susan comes along with big tittas. 17 minutes later John

and Susan cum into Kate's mouth while he mixes it. She

swallows. Serbian Milkshake
by TRocBREE January 11, 2010

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