Kristen Stewart is spending New Year's Eve with Robert Pattinson in the UK.

The 'Twilight Saga' actress will see in 2013 with her boyfriend and co-star after flying from Los Angeles International Airport to Britain last Friday (28.12.12).

The Hollywood couple are reportedly going to spend New Year's Eve on the Isle of Wight, as is Kristen's annual tradition, according to HollywoodLife.com.

Kristen, 22, and Robert, 26, were spotted in London over the weekend, as they casually hopped on the city's underground subway system with a group of friends on Saturday (29.12.12).

A shocked fan, Amber Johnson, gushed on Twitter: ''Just sat next to Robert pattinson and christen Stewart on the tube oh my god. (sic)''

She added: ''we got off at London Victoria and was standing in between them two in the escalators she was with her American pals (sic).''

The pair were reunited in the British capital after spending Christmas apart. Kristen shared the day with her family in the US, while Robert stayed with his family in London.

A source said: ''Rob's family made it clear that they really want to see him over Christmas and, after the intense promotional tour for 'Twilight', Rob liked the idea of spending time alone with his family.''