Vanity
"You're so vain."
The girl's voice interrupted her sister's appreciation of herself in the mirror. Turning from her dressing table with makeup brush still in hand, Fleur faced little Gabrielle and spat at her in angry French.
"Bah! la vanité est beauté!" and continued patting her nose with the oversized puff.
The blonde took great pride in her appearance and today of all days she had to look especially beautiful, as she'd be representing the entire Beaubaxton's School at the Triwizard Tournament. Fleur turned slightly in the mirror, so that she may see all angles of her face.
"Go away, I am een quite a 'urry. Go, go and chase boys een ze courtyard, mmm?"
At this rude dismissal, Gabrielle pouted and stuck out her chin.
"I do not chase boys!"
"Bah!" Fleur stopped powdering to stare at the reflection-version of her sister, "You chase zat 'arry Potter, I am not blind. I saw you ze other day staring at zem. Per'aps eet was at dinner, I do not know."
Gabrielle felt ashamed at being caught, but in doing so, her pride swelled up to its fullest.
"So what if I did, zen?" She shouted, feeling tears form in her eyes. "'arry is...he's....he's nice. He's handsome."
Fleur set down the brush and considered her sister, shaking her head.
"He is nothing but a child. A child who cheated 'is way into zis competition."
"Hmph, you're wrong. I bet by ze end of zis tournament, you will see! 'arry is different zen what you say!"
"Mais non, ma chérie; J'ai raison." Fleur dismissed her again, content that her logic was correct. The girl was still a child herself; of course she couldn't see truth for what it was. "'arry is no more fit to be in zis competition than you are, Gabrielle."
With that she went back to primping, pretending she was alone in the room.
"...I hate you! You and your vanity!"
"Oui, zis is true? I have no doubt, Gabrielle. You hate me, fine! Ah, but one day you will be vain yourself, you see, and zen you shall know what it is I know. Zen you will thank me for being so kind in sharing zis with you!"
Gabrielle stuck her tongue out as soon as Fleur had turned back to her mirror. Every section of face was explored and powdered, every angle imaginable checked for optimal beauty. She sat there in this self-absorbed state for several minutes before her little sister rolled her eyes.
"I will never be as vain," She huffed and crossed her arms, although without any trace of the previous venom.
The little girl had sidled up to her sister somewhere in this time and now her face also appeared in the beloved mirror. Fleur ended her primping and shook her head knowingly at the little blonde on her right. Denial was quite funny, especially when worn with so much dignity and pride.
Soon Gabrielle smiled despite herself, noting how much she looked like her sister. Both were extraordinarily pretty. Both had so many reasons to enjoy their reflections. Both did.
"But," Gabrielle relented after a moment's appraisal, "per'aps you could lend me zis mirror once and awhile anyway?"
Fleur smiled and proudly wrapped an arm around her little sister, the twin she never had.