They're the best of friends and now Hollywood's top two power couples are even sharing date night together - with raunchy results.

Dining with fellow A-listers Tom Cruise and wife Katie Holmes obviously stirred up amorous feelings in Will Smith and spouse Jada Pinkett Smith who shared a loving kiss in the car afterwards.

The action heroes and their partners were at Los Angeles's Cut restaurant last night, possibly discussing what it's like to be part of the '$20 million club'.

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A-list couple number one: Tom Cruise and Katie Holmes were dining last night in Los Angeles with Hollywood's other power couple...

It was after the Smiths left the Cruises that Jada couldn't resist her husband of 10 years, and they shared a passionate embrace.

The Smiths have always spoken openingly about their relationship and how in love they are, but it's usually the Cruises who are the more tactile couple in public.

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A-list couple number two: Will Smith and Jada Pinkett-Smith were obviously in an amorous mood after their meal with the Cruises at Cut's restaurant

From the moment their relationship first went public in April 2005, Cruise and Holmes's lips seemed permanently glued to one another's - at least when there was a movie to promote and cameras around.

Starting in Rome, on red carpet after red carpet, they kissed extravagantly - and on Oprah Winfrey's chat show, Cruise leapt up and punched the air at the mention of Holmes.

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Jada and Will have been married for 10 years and have two children together

However since the birth of daughter Suri in April 2006, the loved-up couple have appeared more subtle about their relationship.

Holmes' representative recently refuted reports the couple are expecting their second child together, stating: "She's not pregnant."

The Smiths and Cruises, along with the Beckhams, form Hollywood's most glamorous triumvirate of A-list friends.

Smith has credited Cruise for pushing him to improve his life - and defended the Top Gun star's Scientology's beliefs.

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Katie's representive has denied reports the actress is pregnant with her second child

“We push one another to be better," Smith said.

“I've studied Buddhism and Hinduism and I've studied Scientology through Tom.

“And nobody's saying anything different!”

He went on: “I don't think that because the word someone uses for 'spirit' is 'thetan' that the definition becomes any different.”