Yesung happily entered Kyuhyun's office and greeted his professor with a bright smile on his face.

"You're here again." Kyuhyun commented in a faux disappointed voice but his eyes look glad to see Yesung.

"Well, I have to secure my spot." Yesung said as he sat on the chair near his professor's table.

"Spot?" 

"In your heart" Yesung acted cutely and joined his hands to form a heart.

"You're a bother." Kyuhyun said, shaking his head, but there's a smile on his face as he continues to type on his laptop.

"You look busy, what are you doing?" Yesung asked.

"My paper for my class." 

"That's boring." Yesung commented, "How about you do me instead?" Yesung asked in a suggestive manner.

Kyuhyun coughed, "Don't you have better things to do?"

Yesung pouted at him, " I told you, I'm securing my spot." Yesung looked down and mumbled his next words to himself, "What if you fall for someone else while I wait for the semester to finish?"

"What did you say?" Kyuhyun asked as he didn't catch what Yesung said after 'spot'.

"I want to ask something."

Kyuhyun rolled his eyes, "If this is about my size again, I'll throw you out of the door." Remembering the time when Yesung casually asked 'how big are you?'.

"Have you measured it yet? I told you I need it for research." Yesung responded with a wink.