Paris Hilton moves fast! Within hours of announcing her split from boyfriend Doug Reinhardt, the heiress was spotted draped over Cristiano Ronaldo in a Los Angeles club.

The fickle socialite reportedly spent hours "swapping spit" with the mahogany soccer star after they met at MyHouse on Wednesday night.

"Cristiano and Paris were all over each other swapping spit the entire night!," an eyewitness tells X17online.

"His table needed every waitress in the building to service the large quantities of alcohol, and he spent in excess of $20,000 on champagne and drinks."

Paris and Cristiano get better acquainted at MyHouse

According to TMZ - who snapped the amorous couple together - Cristiano seemed keen.

"He (Ronaldo) couldn't keep his hands off her," said a fellow clubber.

The heiress and her sister Nicky started their evening at Nobu, where onlookers say Paris was "visibly pining" for Doug, who she dated for six months before they split.

A restaurant source said: "The Hilton sisters showed up at about 10.20pm and sat on the outside patio. Paris wasn't her usual chipper, chatty self - she looked absolutely miserable.

"She was clearly flying under the radar with her sister. She had a couple of cocktails and she was fiddling with her phone throughout the entire meal."

Paris looking rather smug as she leaves the club with sister Nicky

The sisters left the restaurant at around 11.20pm and headed to the club. Once inside, Paris instantly made a beeline for Cristiano's table.

It's claimed the pair left together at 3am, driving straight to Nicky's house in West Hollywood, where the footballer tried - and failed - to sneak unnoticed into the mansion.

Cristiano tries - and fails - to duck unnoticed into Nicky's place

He emerged from the house at 5am.

Paris: Man-eater