Jungkook x Reader [Lemon plot]

Part I

[Y/N] was a girl at Senior year High School. Well, she was not quite popular. She did not socialize with anyone that much. Except for her old friend who graduated a year ago, who is, sadly, now in a university. However, they still speak through Kakao Talk which is popular in this country, and meet on weekends.
Studying at an International School in Korea was a bit weird: there were English speaking Koreans who lived abroad for three years or so. So did [Y/N], she lived in America, well, a majority in the school did.
[Y/N] was not after bullying and was not chased by it. She was just in the middle, studying hard, and all.
She, however, had a personal life, out of school. Being with parents, family, etc. At times, she felt lonely.

This year, the last year at school, she had a new classmate with whom she was a mentor to show around.

"Hello! My name is Jeon Jungkook!" a boy happily said as the teacher wrote down the list of attendance.

"Please sit down in this row with Y/N and the rest. Y/N is your mentor, she will show you around during lunch time".

The teacher gave a lesson and introduction.

"Hello everyone, my name is Y/N, and I am a senior. My favourite hobbies are drawing and dancing" Y/N gave a small speech.

During Lunch Time...

"Hey, Y/N, Y/N!" Jungkook actually chased her as he was desperate to know around.
"Oh, Jungkook, how can I help?" Y/N said as she stopped and smiled towards him.
"I want you to show me the school!" He asked.

Strange is that, he would have asked the boys to show him around, but he only asked Y/N.

"But why me?" Y/N said.
"Well, I thought I should get to know my mentor more first!" he grinned at her.
Y/N had nothing else to do, but smile back from happiness. "I am glad! Let's go and meet your house teacher first".

Y/N did everything where she could lead him to.
The cafeteria, the teacher rooms, the senior room where he met his classmates, the admissions office he probably knew about more before, the small school square and a park, the blossom garden where the school had a small picnic festival once a year, and the gym.

"Hey, what is in here?" JK said as he spotted a room with many mirrors.
"Oh, the dancing room!" she said then checking what time it was.
"I want to go there! he replied.
Y/N pushed him aside, "Let's go, kid, we have some lunch to eat, then lessons".

After that, they said goodbyes with each other.
Y/N came home and called her friend, Yujin.
"Yooooo" The other side on her phone said as was picked up.
"Yuu-jin!" Y/N said back excitedly, "You won't guess it but-"

"You have a newbie in your class and he is adores by many of the girls?" she said instantly.
Not surprisingly, this shot Y/N dead.
"Adored by many?" Y/N asked.
"Well duh, your classmates sent pictures of him to me this morning" she said, "he might be a new target for the class girls of yours, I guess".
New Target?
"As in being a boyfriend material?" Y/N asked.
"Yah"

Silence.
"Well, I see that you are not interested in him, luckily", she continued.
"Nah, I am just excited that I get to mentor a newbie!" Y/N exclaimed.

Yujin laughed, "Don't get too much into it!"

"No worries, I will not!"