Sam Heughan dating co-star Caitriona Balfe is something that "Outlander" fans would truly want to happen off-screen. Fortunately for those who have been shipping this, it looks like their on-screen romance is budding into something real.

Sam Heughan has recently mentioned a few things about himself being a heartthrob. Although he might have been a bit too confident on that note, he was not entirely lying. He is amazingly handsome and has a huge throng of female fans following him.

Additionally, he also gushed about the obvious attraction between "Outlander" main cast Jamie Fraser and Claire Rendall. He admitted that he was very "flattered" by the attention that he and his tandem with Balfe were getting. He also said that he feels "lucky" to have been selected to portray such a fantastic character.

The two of them have such an amazing chemistry on-screen that fans find it very easy to believe that the two of them are actually dating in real life. In fact, as reported by Celebrity Dirty Laundry, fans have widely speculated that Sam Heughan is, indeed, dating Balfe.

Still, many online news outlets have reported that despite their sizzling chemistry, Sam Heughan and Balfe are actually just friends. They have been calling each other "sexy" in interviews and have never hesitated to praise each other's good looks. However, despite all that, it turned out that the two of them are just very good friends.

Moreover, despite of their close friendship, Sam Heughan is aware of the intensity of the chemistry that they have. As he told Reuters during an exclusive interview, he and Balfe have apparently made the decision to slowly build up the hot attraction between the characters that they are portraying. Apparently, "they wanted them to discover each other as the viewers discover them."