Kaley Cuoco is Twinning at Comic-Con in New Selfie

08/31/2017 04:14 pm EDT

Kaley Cuoco has shared a new photo with her younger sister, Briana, and two are nearly identical.

The Big Bang Theory actress shared the shot from San Diego Comic-Con, where she's been promoting the upcoming season of the sitcom.

Up Next: Kaley Cuoco Reveals Her Sister On Instagram

Cuoco and her sister, Briana, who is an actress as well, are shown side-by side cracking identical smiles and looks worthy of the "twin" description Kaley writes in the caption.

Briana is shown rocking a black Iron Maiden T shirt, while Cuoco is seen in a stylish blue top with red and white stripes.

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Briana also shared a photo of the sisters' day at Comic-Con.

They're shown in the same context as the original post, but with T.G.I.F. filter logo and Briana sporting from Spice Girls-inspired hair.

She captioned the photo, "friday, sissy [and] baby spice hair."

This is far from the first time the sisterly duo has posed together for Instagram.

Back in April, the Cuoco sisters celebrated National Siblings Day by sharing a selfie together.

Kaley captioned the post, [National Siblings Day] goes out to my sidderrrrr!!" along with a slew of heart emojis. See the heartwarming post below.

Photo credit: Twitter / @ZulekhaIdrees

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