Game of Thrones
Could King Tommen Baratheon actor Dean-Charles Chapman (pictured) by dating Princess Myrcella Baratheon actress Nell Tiger Free (not pictured)? Instagram photos have fans speculating about new romance. Pictured: Chapman at the premiere of HBO's "Game of Thrones" Season 5 in San Francisco on March 23, 2015. Getty

"Game of Thrones" has always had it's share of unique romances in its five seasons on HBO -- including love between siblings. Is it possible a real-life romance has developed between two actors who play brother and sister on the hit show? One star can't believe all of the "banter" about the speculation.

Dean-Charles Chapman and Nell Tiger Free are rumored to be dating, according to BuzzFeed. Chapman plays Tommen Baratheon and Free plays Myrcella Baratheon, whose parents are brother and sister on the show, Jamie Lannister (Nikolaj Coster-Waldau) and Cersei Lannister (Lena Headey).

Maisie Williams, who portrays Arya Stark on the show, responded to a Nylon article suggesting the on-screen siblings were dating by saying, "BANTS IS UNREAL RN."

BANTS IS UNREAL RN. SO MUCH BANTS. INCEST BANTS. BANTS. bants. https://t.co/fhiXArz0sD

— Maisie Williams (@Maisie_Williams) August 20, 2015

E! Online reports there has been no official announcement that Chapman, 17, and Free, 15, are dating, but there have been several hints on social media. It appears the two still spend a lot of time with each other, even though Free's character was killed off at the end of Season 5.

Tuesday, Free tweeted a picture of the two of them flying together on a plane. Free has shared a few pictures of Chapman tying her shoes for her, saying she's got him "trained" already.

The two also have been spending a lot of time with co-star Isaac H. Wright, who plays Bran Stark on the show. Wright had last season off, as Bran's storyline had reached the point where the books left off. However, he will be returning for Season 6.

While questions remain if the two are really dating,"Game of Thrones" will keep on moving. Production on new episodes of “Game of Thrones” is underway in Northern Ireland. The show will return to HBO for Season 6 in the spring.

Author George R.R. Martin revealed this week that when all is said and done with the "Game of Thrones" saga it's going to have "a bittersweet ending." He cites his admiration for the way "The Lord of the Rings" ended as his motivation.

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