You were Rosalind Potter, Harry's older sister, you were the bestfriends of the Weasley Twins since first year. You do pranks with them.
In sixth year, your brother was 14 while you're 16, it was the Yule Ball and Fred was nervous at the idea of asking you, so George reassured him.
Fred finished by asking you to the ball nervously and you accepted of course, how could you not?
So at the night of the Yule Ball, as Fred was talking with George while waiting for you. You get down the stairs with your dress who look like a princess, you were gorgeous as always, when Fred noticed you, his eyes widen and one eye twitch..
You were always beautiful, but that was enough to make Fred pass out as her approach you.
"Merlin's beard.. Rosalind.."
Fred said, looking at you up and down because you're so gorgeous.
"Is something wrong?"
You asked with that sweet voice of yours as you look down at yourself before Fred.
"No, not at all.. No.. my.. Merlin.. wow.."
Fred frown, he lost his words at the mere sight of you.