Robert Pattinson`s too busy working to date?

Los Angeles:`Twilight` star Robert Pattinson is too busy with work to date.

The 27-year-old actor - who was catapulted to the spotlight in the `Twilight` films where he played Edward Cullen alongside his ex-girlfriend Kristen Stewart - is rumoured to have a romance with model Dylan Penn but sources claim relationships aren`t on his radar, reportedly. "Rob and Dylan are friends, but that`s it. They are not back together. They are not dating each other. Rob is so busy with work right now that dating is pretty much not on his radar," a source said. Robert and Dylan, who is the daughter of Sean Penn and his ex-wife Robin Wright, reportedly had plans to meet up in Madrid, Spain for a romantic weekend after she was spotted at Madrid-Barajas airport on March 28. Meanwhile, the Hollywood hunk is set to hit the big screen in 2014`s `The Rover` and `Maps to the Stars` which are in post-production and is currently filming `Queen of the Desert` and `Life`.