In the fifth season of 'Game of Thrones,' Myrcella Baratheon was engaged to Trystane Martell and her brother Tommen Baratheon has married Joffrey's widow Margaery Tyrell. However, it looks like Nell Tiger Free and Dean-Charles Chapman are much closer in real life than either one of their fictional partners!

BuzzFeed has recently reported that the 'Game of Thrones' actors could be dating, as evidenced in the several photos that Chapman and Tiger Free has posted on Instagram and Twitter.

One picture posted by Dean-Charles Chapman on Instagram shows Nell Tiger Free cozying up to his shoulder. There is no caption on the photograph other than the tag to his costar's Instagram account.

Nell Tiger Free has also posted a picture of Dean-Charles Chapman on Twitter, where the young actor appears to be posing with a cue stick. The caption read, "My boy be lookin like a serial killer."

It may look like a harmless photograph, but Twitter users immediately reacted to the caption.

Although Nell Tiger Free didn't respond to her followers' questions about her relationship with Dean-Charles Chapman, her tweets seem to confirm that she enjoys her costar's company and misses him when he is not around.

Even their 'Game of Thrones' costar Isaac Hempstead-Wright thinks they are adorable.

Dean-Charles Chapman has portrayed Tommen Baratheon in the fourth and fifth season of 'Game of Thrones,' although he has previously appeared in Season Three as the young Martyn Lannister.

Nell Tiger Free played the older Myrcella Baratheon in 'Game of Thrones' Season Five, since the character was last seen in the second season as portrayed by Aimee Richardson. Although Myrcella died in the season finale after being poisoned by Ellaria Sand, Tiger Free may still appear in the sixth season for a funeral scene.

'Game of Thrones' will return to HBO in 2016.