It's not a story
"You know, Yeonjun"
"How do you kiss?"
"huh?"
"Why are you asking that?"
"I was just curious."
"Teach me how to kiss."
"I know how to kiss well"
"But that's hard to explain in words."
"Then why don't you do it yourself?"
"okay"
"Excuse me for a moment, my lady."
You can imagine the rest...