After dinner, Paris headed to her Hollywood Hills home for the after party. Only 40 to 50 guests showed up reports Star

Meanwile, US magazine is reporting that oil heir, Brandon Davis made Paris Hilton cry at her 26th birthday party, and drove Courtney Love and Paula Abdul to flee the premises.

Things were going well at Hilton’s dinner party at L.A.’s Prime Grill until 10 p.m. rolled around and Davis started acting up.

"He was hurling flowers at Paula Abdul," a guest tells the New York Daily News. "Then he began bombing her with Styrofoam flower-holders. He was shouting, 'Lick my [BLEEP], Paula!' He started mocking her ancestry by speaking gibberish in an Arabic accent.

Abdul, who was supposed to sing "Happy Birthday," made an early exit.

Davis then turned on Love.

"He lifted her up so that she was straddling his waist," says a witness. "Her Chanel dress was riding up. Brandon was saying, 'I want to squirt on you.' He was humping Courtney in front of her daughter, Frances Bean. When he put her down, Courtney grabbed Frances and they marched out of the restaurant through the kitchen."

"He was knocking over glasses and candles on the table," says a source.

After Davis was “encouraged to leave,� Paris blew out the candles on her cake and everyone headed to an after-party at her house.

"Incredibly, Brandon showed up at Paris' place," says a source. "Security guided him downstairs. They were under orders to keep him away from Paris."