Washington, Dec 8 (ANI): Formula One race ace Lewis Hamilton has laughed off rumours that he and fellow Brit, supermodel Naomi Campbell are dating.

The two sparked off rumours after they were spotted together outside China Tang restaurant at London's Dorchester hotel.

When they were spotted they both sprinted for cover, Lewis covering his face and dashing indoors while Naomi slipped in after him with her head down.

Their behaviour suggested that the two had something to hide or that they were reluctant to be seen with one another

However, Hamilton insists that Campbell and he treat each other more like siblings than lovers.

"There were quite a lot of rumours going round about me and Naomi but there's nothing to it. She is really cool and she treats me like a younger brother," Contactmusic quoted him, as saying.

The two had met earlier this year at the GQ Awards, and at the time, Lewis had said: "I was sitting next to Naomi Campbell. I'm thinking 'wow'. It really was quite mind-blowing." (ANI)