How Well Do 'XO, Kitty' Stars Gia Kim and Sang Heon Lee Know Each Other?

Gia Kim and Sang Heon Lee took sibling rivalry to the next level in Marie Claire's How Well Do You Know Your Co-Star? The real-life brother/sister pair and 'XO, Kitty' castmates talked secret tattoos, growing up together, and first jobs while also revealing what they hope happens in season 2 of the hit Netflix show. So let's see how well Gia Kim and Sang Heon Lee know each other
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[@moonyojeong-bo7mx]

"im gonna tell mom" gosh he's so cuteeeee

[@jenojaemin1730]

4:56 i'm gonna tell mom (about the tattoo)
SUCH A SIBLING THING HAHAHAHA

[@txpiocapearl]

ㅋㅋㅋ I feel like their sibling energy really shines through in this video; Sang Heon is very pouting younger brother to Gia here and she gives such teasing big sis vibes 😂🥹❤

[@Sam-mh4mc]

so true

[@AnnaMokrushina]

gotta love their sibling energy

[@Sam-mh4mc]

okay they are so cute - definitely siblings

[@thyytube]

Really hope that season 2 will be much better😢

[@jenojaemin1730]

10:23 aw what a nice brother

[@leedorongnyong]

the best siblings ❤

[@enkayar718]

It's so wild that they are siblings who seem to have grown up together but have two completely different accents.

[@adeleange]

they are just so comfortable with each other, love them 😊

[@hiimhayden2632]

Their Sibilings ofc

[@pobypark8230]

세상 귀여운 남매!
늘 응원해요 😊

[@malekidi816]

I love them so much

[@Sam-mh4mc]

aww he was gonna even share his salary with his big sis

[@nature_world777]

Thumbnail I was like oh Lee know

[@lisalyli]

I Love thème so much ♥️♥️

[@KellyyyX]

Well ofc they’re siblings irl

[@jenojaemin1730]

they're so funny HAHAHAHA

[@kohvru]

They even look the same