“Game of Thrones” co-stars Maisie Williams and Sophie Turner have reportedly got matching tattoos, taking their friendship to the next level.

Arya and Sansa Stark, on-screen sisters and real-life best friends, visited tattoo artist Kat Paine in Belfast, Northern Ireland, to get inked. The details of the tattoos have not been revealed yet. The tattoo artist, however, did post a selfie with the stars of the immensely popular HBO show where William’s arm is bandaged, showing that she chose to get a tattoo right below her elbow.

sophie maisie Actresses Maisie Williams (left) and Sophie Turner attend the Nintendo Lounge during Comic-Con International 2014 in San Diego, California, July 25, 2014. Photo: Getty Images for TV Guide Magazine/Mike Windle

Without giving out more details, Paine wrote on Facebook: “ I'll let her post it first as she wanted to be the first to show it and don't want to tell everyone before her :) it was a matching one that sophie got too x”

While Williams has not revealed the tattoo yet, she posted a picture with Turner on Instagram — captioned ‘07.08.09.’

In a move that could see lines forming outside the tattoo artist’s studio, Paine also said in her post on Facebook: “They might be bringing some of the other guys up at some point.”

“Game of Thrones” will be back next year with seven episodes, after which only the eighth and final season remains.