'One Tree Hill' stars reveal relationship

One Tree Hill stars Sophia Bush and Austin Nichols are dating, it has been revealed.

The 27-year-old actress admitted that the pair have been together for nearly four years, reports E Online.

While she was "terrified" to date a co-star, she admitted that she changed her mind when Nichols took a job on the series to be with her.

"We had so many years of history prior to him coming to work on the show," she said.

"And I think someone taking a job and moving their life across the country to show you how much they care is pretty much the most romantic gesture that a person could make."