Yes...they are!

The mystery of their relationship status has been driving fans of the vampire saga loopy.

Brit actor Robert carried on with the secrecy at Sunday's Bafta bash - then admitted they were a couple at the post-do dinner.

The pair at first went to ludicrous lengths to avoid being seen together by devoted fans.

They arrived separately and did not sit together during the ceremony at the Royal Opera House in London's Covent Garden. 

But as soon as they were out of the glare of the public, they were all over each other.

According to Robert the cloak-and-dagger stuff is just to avoid attention.

He said: "It is extremely difficult but we are together, yes. 

"We can't arrive at the same time because of the fans. It goes crazy. This was supposed to be a public appearance as a couple but it's impossible. We are here together and it's a public event but it's not easy. 

"We have to do all this stuff to avoid attention."

Kristen, who picked up the Orange Rising Star award, arrived at the dinner with six security guards. 

Not even PRINCE WILLIAM had that much protection.

Once inside the afterparty Robert and Kristen - whose next Twilight movie, Eclipse, is out in July - couldn't get enough of each other.

They were snapped leaving the do, which was held at the Grosvenor House Hotel, at around midnight.

Robert headed to the gongs from shooting movie Bel Ami with UMA THURMAN.

He said: "A load of us came straight here. It feels like a work night out. 

"The film is going well. I play a French journalist in 19th Century Paris.

"The problem is I have to leave for work again at 6.30am."

I can't help feeling a bit sorry for Kristen - who was partying in London again last night, this time at the Elle Style Awards - and Robert.

They are obviously smitten but feel they have to hide it from the world.

Source