Robert Pattinson's girlfriend FKA Twigs has opened up about her romance with the Twilight star.

The 26-year-old singer, whose real name is Tahliah Debrett Barnett, told The Mirror that the couple's relationship is going very well, while attending the Mercury Music Prize 2014 awards.

"I'm quite a shy person and I live in a constant state of shyness. My character on stage is a small part of my personality magnified," she said.

"I don't have Instagram or Twitter or any of those things on my phone and I don't really read things like that," Twigs said of her sudden popularity.

Twigs is Pattinson's first serious girlfriend after he ended his relationship with Kristen Stewart, his Twilight co-star and girlfriend of four years, after it was confirmed that she cheated on him with British director Rupert Sanders.

Stewart and Sanders, who worked together on Snow White And The Huntsman, were photographed kissing in the Hollywood hills.

Rumours that the Remember Me actor and Twigs are dating started when Pattinson was spotted with Twigs in August in New York City with friend Tom Sturridge.

On 15 September, Twigs had posted a cryptic message on Twitter, sparking rumours that she was pregnant.

Adding on, the two were recently pictured holding hands on Venice Beach, California.

Pattinson and Twigs have become inseparable, and he is reportedly planning to relocate to England to settle down with his girlfriend.

A source told the UK's Grazia magazine: "She is behind Rob's decision to move back. He's serious about her."

"They are really happy and he seems keen to make a fresh start, away from the mutual circles he shared with his ex-girlfriend Kristen [Stewart] in LA.

"They've both got busy schedules but they're planning to move to London together in the foreseeable future," the insider added.