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

[@moonyojeong-bo7mx]

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

[@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

[@jenojaemin1730]

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

[@AnnaMokrushina]

gotta love their sibling energy

[@Sam-mh4mc]

okay they are so cute - definitely siblings

[@jenojaemin1730]

10:23 aw what a nice brother

[@enkayar718]

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

[@kxm567]

i think cause they learned english in the countries they went to school abroad in gia kim went to school in La and sang heon went in england

[@adeleange]

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

[@hiimhayden2632]

Their Sibilings ofc

[@pobypark8230]

세상 귀여운 남매! 늘 응원해요 😊

[@leedorongnyong]

the best siblings ❤

[@malekidi816]

I love them so much

[@nature_world777]

Thumbnail I was like oh Lee know

[@Sam-mh4mc]

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

[@lisalyli]

I Love thème so much ♥️♥️

[@udanidilishika2709]

for a moment i thought there's skz lee know in this cuz of the title..sjskjskjss

[@KellyyyX]

Well ofc they’re siblings irl

[@jennychan1570]

I definitely can see them in 'Sibling's Romance' if they're not actors... Love their siblings chemistry

[@prettylife6086]

lol "Lee Know"

[@jenojaemin1730]

they're so funny HAHAHAHA

[@kohvru]

They even look the same