A couple shocked customers at a Washington state eatery by having sex in its parking lot – and when they were busted, the woman pulled out a dandelion from her vagina, according to a report.

Kent police received a 911 call on April 30 about the cavorting couple – a man with his pants down and a mostly naked woman performing sexual acts on him, the Seattle Post-Intelligencer reported.

Witnesses said the pair were about 10 feet from the sidewalk, in full view of the diners, pedestrians and passing vehicles.

The 36-year-old woman, who was found with an open beer container aboard a bus, greeted cops by exposing herself and removing a dandelion from her genitals, police reports said.

The 37-year-old man was detained as he walked away from the scene, officials said. Police found a substance believed to be PCP in his possession.

The woman – who stripped herself naked in a jail cell after being arrested — has a history of public nuisance crimes, including a 2013 indecent exposure conviction.

The lovebirds were charged with indecent exposure and the man was additionally charged with a drug crime.