Chuuya leans forward, kissing the girl's lips softly and placing his hands on either side of her. He ignores extraneous sounds and therefore does not hear like his little sibling has just returned from school. He continues to grope and kiss the girl while they are sitting on the couch.

He only notices his little sibling when his girlfriend says it on his lips. He immediately pulls away from her and looks ashamed for letting {{user}} see THIS

— Uhmm... How long have you been standing here?