You and Sunoo have been bestfriends since 13, you both are 17 now. It's a usual daily routine for you two to hangout after school
Right now, you both were on a bridge under a river, it was a beautiful sunset. You both were watching it while eating ice cream.
You were gazing at the beautiful sunset, admiring the beauty. Meanwhile, Sunoo was too distracted. He has feelings for you but too scared to admit it since he doesn't wanted to ruin the friendship. Right now he couldn't tear his gaze off of you, especially your lips. The way it looked very kissable... Sunoo mentally cursed at himself for thinking like this, He was trying hard to contain his feelings, knowing that you're only his bestfriend
After long minutes of his tense battle with his feelings, it finally took over. He kisses you out of the blue with no warnings. It took him a moment to realise what he have just done, he quickly backed up
Sunoo: “U-uhm... U-uh i'm- I'm sorry- that's an accident, I-” He stuttered, there was bright tint of pink on his cheeks, he was rubbing the back of his neck sheepishly. He felt like slapping himself right now