She may be rumoured to be dating co-star Bradley Cooper, but Scarlett Johansson was spotted spending time with a friend yesterday.

Dressing boldly in some red-hot pink and black stripes, the 27-year-old was seen furiously checking her phone as the pair left a residence in Los Angeles.

The actress stood out even more by slipping on a pair of bright red sunglasses and painting her lips in a near-matching colour.

Red hot: Scarlett Johansson stepped out in a bold pink and black striped T-shirt yesterday as she spent time with a friend

Scarlett’s casual outfit was rounded out with a black tight miniskirt and some chocolate strappy wedges.

The curvy Match Point star wore her signature blonde hair scraped back in a ponytail.

The actress couldn’t help but check her phone, suggesting that somebody very important was on the other end.

Text from Bradley? The actress, who is rumoured to be dating co-star Bradley Cooper continuously kept checking her cell phone

Rumours that Scarlett and Cooper have become more than something of just friends and co-stars emerged earlier this month when the pair were spotted dining at an exclusive Bel Air restaurant, with one observer reporting that the chemistry between them was ‘VERY evident’.

Scarlett, and Cooper, 37, dined at Wolfgang Puck at Bel Air restaurant, according to Radar Online.

The blonde A-listers had ‘a fun, flirty dinner’ the website reports, and ‘a steady stream of giggles’ was heard emanating from their table.

Summer brights: The actress stood out even more by slipping on a pair of bright red sunglasses and painting her lips in a near-matching colour

The Avengers star beauty drank wine during dinner, and the two engaged in witty banter throughout.

‘They seemed very comfortable together and it was pretty obvious they are into each other,’ an eyewitness told RadarOnline.com

‘Bradley seemed almost distracted by Scarlett’s beauty, especially since she was wearing a very low cut dress, and Scarlett was totally working her charms.

‘She kept flipping her hair when she laughed at his jokes.

Curves on show: Scarlett’s casual outfit was rounded out with a black tight miniskirt and some chocolate strappy wedges

‘The chemistry between them VERY evident and they looked totally wrapped up in each other — very cute!

‘They were definitely having more than a “friends” dinner, it seemed pretty obvious they totally have the hots for each other.’

Bradley, named ‘Sexiest Man Alive’ by People magazine, apparently stood up when Scarlett excused herself for the ladies room, and again when she returned to the table.

Dazzling couple: Scarlett and Bradley made a glamorous couple at the Vanity Fair cocktail reception following the 2011 White House Correspondents’ Association Dinner in Washington, DC

The Hangover actor, who once dated Renee Zellweger and most recently has been in an on-again, off-again relationship with Zoe Saldana, also reportedly paid for the dinner.

The duo then relocated to the piano bar for drinks.

The Black Dahlia star announced last month that her Los Feliz home was on the market.

She bought the luxury home in the LA neighborhood for $2.9m in 2010 with ex-husband Ryan Reynolds.

But after an expensive renovation, the couple spent just six months in the house before announcing their marriage was over.

On screen lovers: Scarlett and Bradley were rumoured to be dating after they worked together on the 2009 movie ‘He’s Just Not That Into You’