Twilight star Kristen Stewart has been spotted having dinner with on-off boyfriend Robert Pattinson's best friend - singer/songwriter Marcus Foster. The 26-year-old California-born actress was seen by celebrity blogger Perez Hilton at En Sushi in Los Feliz, at the birthday party of her friend Scout Taylor Compton.

The 26-year-old actor Pattinson remains in Australia, shooting his new film, The Rover. The dedicated boyfriend even spent Valentines' Day away from Stewart.

"They were celebrating a friend's birthday and sang Happy Birthday to her. They all shared the hot chocolate cake. Kristen was very nice and sweet. She was wearing a baseball hat. Her friends were also very nice. Kristen has been here before with Robert Pattinson but he has not been here for quite some time," a source was quoted as saying.

Stewart, whom UK men recently voted the least sexy Hollywood actress, in a pre-Oscar poll, looked chic and trendy in bright yellow jeans and combined it with a sheer white top, denim jacket, hipster glasses and baseball cap.

The famed vampire-themed fantasy Twilight series, which propelled Pattinson and Stewart to stardom, has been completed. Stewart's next big role will be in The Big Shoe, opposite Jim Sturgess.

Stewart is Presenter at Oscars 2013

The 22-year-old actress is a confirmed presenter for the 85th Annual Academy Awards, which will take place on 24 February at the Dolby Theatre in Hollywood. Her film, Snow White and the Huntsman, directed by Rupert Sanders, is nominated for Best Costume Design and Best Visual Effects.

Other presenters at the Oscars ceremony will include Jane Fonda, Jennifer Garner, Kerry Washington, Jennifer Aniston, Michael Douglas, Jamie Foxx, Paul Rudd, Salma Hayek, Melissa McCarthy, Liam Neeson, John Travolta, Ben Affleck, Jessica Chastain, Jennifer Lawrence, Halle Berry, Sandra Bullock, Nicole Kidman, Reese Witherspoon, Mark Wahlberg, Jean Dujardin, Octavia Spencer and Meryl Streep.

The event will be hosted by comic actor Seth MacFarlane.

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