imagine Jun being so dumbfounded when you mistakingly entered the room that they were in.
"oh! " you said in surprise, bowing your head as an apology. "sorry! Wrong room. "
You closed the door and left the boys to talk. Jun was the one who looked very infatuated, as he absentmindedly bit on his nails whilst he pointed at the door.
"who is she? " Jun asks in a small voice.
S.Coups smiles. "that's (y/n)- "
"she's really pretty. "
"she's my sister. "
"oh. "