Sam Heughan and Caitriona Balfe shared palpable chemistry on-screen by portraying their roles as James and Claire, respectively in the historical fiction series “Outlander.” Fans are wondering if the on-screen couple are dating in real life.

The two stars of the famous romance time-travelling series based on Diana Gabaldon’s “Outlander” novel series were noted to be very friendly off-screen. In fact, they were reportedly very close to each other and oftentimes displayed their affection through interacting on social media.

Despite their closeness, Caitriona revealed they are not dating in real life saying that, as much as they would like to replicate Claire and Jamie’s love story, she thinks it would be very difficult for them to be together.

"We're not together," Caitriona previously shared in one interview in ET Online. "It's funny. We've always said from the get-go that we're incredibly great friends. And to have that friendship and that closeness and to be able to get along as we do on set, it's great that we're able to get along that well.”

Heughan also added that he was amazed how their fans wanted them to date for real. The actor even apologized to the fans because he and Caitriona are not dating and are just real good friends.

'Outlander' season 3 filming

“Outlander” season 3 filming has officially ended and both Sam Heughan and Caitriona Balfe took to Twitter to celebrate and reveal the good news to the fans.

The stars also thanked the South African and Scottish crews who worked hard to help the new season film successfully.

In an interview with ET Online, Balfe and Heughan revealed more about their filming and what fans can expect on the new season of the historical romance series.

Balfe told ET Online that she had been looking forward to the new story in South Africa. She also revealed it was fun filming in a new place. Meanwhile, Heughan revealed that he is so proud of the new season, adding that it contains a different and very strong plot.

Droughtlander no more

Starz finally revealed the teaser for the upcoming “Outlander” season 3.

Fans have been treated to the characters of Caitriona Balfe and Sam Heughan for the upcoming season. Based on the teaser, fans cannot expect Claire or Jamie to look older.

The 40-second trailer contains Jamie’s narration of both his longing and suffering without Claire. Take a look at the video clip below:

“Outlander” season 3 will be released in September 2017 on Starz.