They spend half their time forced apart as they shoot separate films across the globe.
But it appears Robert Pattinson, 25, and Kristen Stewart , 21, are making the most of their downtime together while they get the chance.
The pair were spotted enjoying a Marcus Foster concert together in Camden, London on Wednesday night as they put on a rare PDA in front of onlookers.
Playing it coy: The Twilight stars kept their distance as they turned up to Marcus Foster's gig in Camden, London but it was a different story inside
Stewart, who plays Bella Swan in the vampire franchise, was seen wrapping her arm around Pattinson while the pair swayed to the music at the Dingwalls venue.
A source told HollywoodLife.com: 'It’s so obvious they’re together. Rob had his fingers tucked into Kristen’s jean pocket, and she was holding his hand there.
'She also had her other arm wrapped around him. They were swaying to the music and kept whispering things in each other’s ears.'
Drinks: Robert and Kristen headed to the bar next door following the gig to enjoy drinks with friends, including actor Tom Sturridge
But the stars are yet to confirm they are romantically involved off screen despite heavy speculation ever since they were first cast opposite each other in 2008.
Stewart was seen cheering on the singer and at one point she shouted out 'Marcus Foster!' with Pattinson grinning widely at her antics.
The 21-year-old actress obviously wanted to support her friend as she starred in his I Was Broken music video earlier this year.
The pair attempted to go incognito to the gig in casual clothes, with Robert sporting a baseball cap, white T-Shirt and black hoodie with jeans.
Picture perfect: The rumoured boyfriend and girlfriend were happy to pose together at the Breaking Dawn premiere in Los Angeles earlier this month
But the lovers didn't seem to mind the attention they were bringing as Stewart declined to move backstage after management at the gig offered to give them more privacy.
Following the concert, the pair then moved on to the Highlight bar next door, where they enjoyed drinks with friends until 1.00am.
Twilight meeting: The pair have been rumoured to be dating ever since they were cast opposite each other in the first vampire movie in 2008Although their outing was a rare occurrence, the pair had the perfect place to head back to together - they've recently splashed out on their very own love nest in Notting Hill, north west London.
Kristen has been lucky enough to spend a lot of time in the UK recently as she films her latest movie, Snow White And The Huntsman, and Robert grew up in London so no doubt likes to return whenever he can.
The spacious apartment boasts a luxury rooftop terrace, an open-plan kitchen and modern decor throughout.
New love nest: The stars have splashed out on their very own love nest in London's Notting Hill to retreat to when they're in the Capital
Spacious: The pair have plenty of room to hide in to keep away from prying eyes
Roof terrace: Their flashy new pad even has a good view of the capital