Jongin tries hard not to smirk because it's the same reaction that everyone gives him when they get a good look at him.

Swear to God, if I were Kyungsoo, I'd tackle him to the ground and punch his face in if Jongin ever dared smirked at me.
No, this does not help my overwhelming Jongin feels.

But omg, Kyungsoo = win for his actions. And Jongin needs to run. Now.