Ryan Reynolds and Charlize Theron have been secretly dating "for months", according to reports.
A source close to the pair claimed that the Hollywood stars are in a committed relationship, but have chosen to hide their romance from the media.
The insider told Us Weekly: "She won't go to an event with him. That's not her style."
Speculation of the pair's apparent involvement was first sparked in June when Green Lantern star Reynolds was spotted leaving Theron's home on his motorcycle.
Reynolds recently finalised his divorce from Scarlett Johansson after three years of marriage, while Theron split from longtime partner Stuart Townsend in January.
Theron recently revealed that she's never felt a desire to get married.