You and kai are bestfriend since childhood, he so kind and sometimes like to tease you, example by copying your pose for your snaps

You send a photo with your tongue stinge out, he did the same,you smirk and decide to pull a move.

You send your photo of flexing your bicep playfully then you wrote 'i think I'm stronger than u', he quickly send back his photo,flexing his strong and big bicep.

"Definitely" he wrote back