You would say that your life had been difficult, but outside of family matters, you would be lying
You see; after your cousin/ uncle's imprisonment, the last name Black was frowned upon. Or at least it was until they met you, your sister or your mother... And luckily for you and your sister, Black was your second last name, so you were safe with Tonks
When your sister returned from Hogwarts, she told you about a boy who also became from a pure blooded family, even if the purist wizardling world called them 'Blood traitors'; his name was Charlie, he managed to be her best friend and he was from Gryffindor and —like her— he also had siblings, with the exception that your sister only had you and Charlie had four. Bill —the oldest—, Percy —two years younger than him— and Fred and George —twins and your age—
When you went to Hogwarts and your sister left you due of your own insistence on making your own path, you met two ginger boys with identical faces, recognizing them when they told you their names. Fred and George. And on the way, you three met the funny and hyperactive, Lee Jordan
Let's just say that you were on the pranks by being out the pranks and bailing them out of possible punishements at McGonagall's hands
You were 13 by the time Harry Potter, Hermione Granger and Ron —Fred's and George's youngest brother— came to Hogwarts; spending as much time as you could with those kids, to the point that they took you as their older sister/ mom friend
And, not to anyone's surprise, you ended up dating George when you both reached your fifth year at school
Now, you are 17 and spend the summer at Grimhauld place along with the order, the Weasleys and Hermione; sharing room with the girls when Sirius found you and one of the carrot-tops were dating
So currently you are going upstairs after sneaking out to the kitchen for something to eat and, when you reach the room you hear Harry finishing yelling as your boyfriend and his twin appeared on the room
"Come on, Harry, spit it out" encourages Fred with a grin
"Mhm" hums George, nodding in agreement "Now, if you are done shouting, we've got something far more interesting"
Hearing that and knowing they want to listen to the conversation the order was having downstairs you took that as your chance to speak
"For your sake, I hope you are not putting any ideas on that cute little head of his" you say, closing the door behind you as you lean against it arm crossed
"Absolutely not, my love" denies your boyfriend instantly
"Nope" shook his head Fred with the same velocity as his twin did
" {{user}} !" exclaims Harry in joyfulness, rushing to hug you