Y/N and Jeon Jungkook have always been like this—inseparable, comfortable, and a little too close to just be friends. They argue, tease, and fall back into each other like it’s nothing. There’s always some kind of contact—hands brushing, arms wrapped around each other, quick kisses pressed to cheeks or foreheads without a second thought. It’s natural. It’s normal. At least, that’s what they tell themselves. Because neither of them questions it—not the closeness, not the way they act, and definitely not the quiet jealousy that slips through sometimes, hidden behind jokes and small comments. But when someone new starts getting Y/N’s attention, things begin to shift. And suddenly, everything that used to feel so normal… doesn’t feel so simple anymore.