Kristen Stewart keeps away from the subject of Robert Pattinson on Jay Leno

Kristen Stewart keeps things strictly business (and away from the subject of R-Patz) during colourful appearance on Jay Leno show

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UPDATED:

09:41 GMT, 6 November 2012

She has been making a growing number of television appearances to promote the last instalment of Twilight, but has as yet not addressed her fling with married director Rupert Sanders, which made headlines the world over.

And Kristen Stewart still keeps it strictly business, on a forthcoming appearance on The Tonight Show with Jay Leno, judging by a new preview clip.

The 22-year-old actress discusses the ending of Twilight and doing stunts as alter ego Bella Swan during the sit down chat on Monday.

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Dressed for success: Kristen Stewart discussed the end of Twilight during an appearance on Tonight with Jay Leno on Monday night

Dressed for success: Kristen Stewart discussed the end of Twilight during an appearance on Tonight with Jay Leno on Monday night

Prim and proper: The actress perched on the sofa and chatted away... just not about R-Patz

Prim and proper: The actress perched on the sofa and chatted away... just not about R-Patz

Prim and proper: The actress perched on the sofa and chatted away… just not about R-Patz

The star talked about Bella's new energy as a vampire after she was turned at the end of the last film and having to do stunts like wrestling a mountain lion and jumping into waterfalls.

'It was scary,' she admits. 'I made really embarrassing sounds the first time I did it. But then you get used to it. I can be badass after that.'

The star looks stunning in a stunning patterned colourful dress with her hair pulled into a simple ponytail.

Talking it out: The star looked stunning in the unusual patterned mini dress which showed off her slight figure

Talking it out: The star looked stunning in the unusual patterned mini dress which showed off her slight figure

Facing the press: Kristen has so far handled her Twilight interviews with aplomb following the cheating scandal which enveloped her earlier this year

Facing the press: Kristen has so far handled her Twilight interviews with aplomb following the cheating scandal which enveloped her earlier this year

Earnest: The actress is usually a little nervous and awkward in interviews

Earnest: The actress is usually a little nervous and awkward in interviews

Earlier, she had looked a little more low key as she arrived at the Hollywood studios in a white T-shirt and baseball cap to discuss Breaking Dawn Part II, which will be released in the U.S. on November 16.

'It is so shocking to be honest,' the star says about the ending 'with a twist.' She added: 'I can't even think about it, I get giddy.'

Despite her solo appearance on Monday, Kristen took part in a joint televised interview for the first time since the scandal broke last week.

Publicity tour: Kristen discusses stunts and the end of the film in the interview

Publicity tour: Kristen discusses stunts and the end of the film in the interview

Vampire turn: Fans will see Kristen's character Bella Swan as a vampire for the first time in the last Twilight film Breaking Dawn, Part II

Vampire turn: Fans will see Kristen's character Bella Swan as a vampire for the first time in the last Twilight film Breaking Dawn, Part II

Low key: Kristen looked a lot more casual as she arrived at the studios earlier on Monday

Low key: Kristen arrives at Jay Leno earlier on Monday

She appeared alongside Pattinson and co-star Taylor Lautner for chats with MTV and E! and also took part in a press conference at a junket at the weekend.

Pattinson and his firmly on-again girlfriend looked relaxed in each other's company during the 30 minute long interview with MTV.

Topics for discussion were also strictly franchised focussed, although did occasionally stray to Stewart and Pattinson's Halloween costumes and the trio's attitudes towards the press, but were handled with aplomb by the couple.

Busy girl: Stewart also squeezed in a visit to see her boyfriend Pattinson on the set of Jimmy Kimmel Live where he was taping an interview in Los Angeles on Monday

Busy girl: Stewart also squeezed in a visit to see her boyfriend Pattinson on the set of Jimmy Kimmel Live where he was taping an interview in Los Angeles on Monday

Busy girl: Stewart also squeezed in a visit to see her boyfriend Pattinson on the set of Jimmy Kimmel Live where he was taping an interview in Los Angeles on Monday

Sit down chat: The actor spoke seen during his interview with the host on the ABC show

Sit down chat: The actor spoke seen during his interview with the host on the ABC show

She's a vamp: Kristen as Bella and real-life boyfriend Robert Pattinson as Edward Cullen in Twilight: Breaking Dawn: Part II

She's a vamp: Kristen as Bella and real-life boyfriend Robert Pattinson as Edward Cullen in Twilight: Breaking Dawn: Part II

Kristen also hinted at that rumoured new 'shocking' ending to the film…

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