Kimberly Stewart is dating rocker Tommy Lee, reports have claimed, since the pair were spotted kissing and cuddling each other.

The daughter of Rod Stewart was seen running after Tommy when he was not allowed into the launch party of a restaurant in Los Angeles because the fire service had closed it down.

A source told the New York Post: "They threw their arms around each other and she started saying, 'Baby, baby,' before kissing and leaving."

The 26-year-old met the 44-year-old rock star in London earlier this year and the pair are now reportedly in a relationship.

Lee, however, has been rumoured to be getting close to ex-wife Pamela Anderson after the pair were seen getting close at her 40th birthday party in Las Vegas on Saturday.