Let's just say that if you were to kiss a BTS member during a fight, they would probably be shocked - shocked, but not necessarily in a bad way! I mean, who wouldn't want to be kissed by a passionate fan, right? It's like a real-life K-drama unfolding before their eyes.
Now, you might be wondering, what would each member's reaction be like? RM, being the leader, would probably try to play it cool and pretend like it didn't faze him, but deep down, he'd be thinking, "Wait, is this real life?" Meanwhile, Jin would likely be like, "Uh, what's going on here? Did someone just kiss me?" - it's all about the confusion with him.
Suga, on the other hand, would be all about the swag - he'd just smirk and be like, "Yeah, I knew you had feelings for me." J-Hope would probably be too busy being his awesome self to even notice, while Jimin would be all about the drama - he'd make sure everyone knows that he just got kissed during a fight.