What family member would the AAY be?

[Pastellite]

┣▇▇▇═─ The fish loving sister o3o

[Umpenscrump]

The awkward younger sister.

[dot boas]

That beloved eccentric Uncle.

[Pen Pressure]

The mysterious aunt that your mom hates who travels a lot and gives weird presents the week after christmas.

[Ekatherinna]

The cool moody older brother you always want to hang out with, but he never wants to hang out with you.

[Bleems]

The younger sister who always happy and optimistic.

[halogen space punk]

The tough-as-nails uncle with all the cool stories. He sure was scary when you were younger though.

[Mixuyo]

The older brother who plays bass and always shares music that he thinks you'd like with you. emotion_c8

[Majikina]

The mom who's secretly a magic fairy wizard~

[Payonai]

Instead of the obvious..
I'll say she's the oldest sister.
Her parents are goofy kids at heart- so she often takes on parental responsibilities.

[Colder than January]

The rebel uncle your mom doesn't want you to hang out with.

[Savage Waster]

The little sister with odd hobbies as result to playing one too many violent games.

[Bleems]

The youngest sister who is shy, quiet and prefers to be alone.

[Ekatherinna]

The unconventional, adventurous aunt who is adored by all the kids because she brings them lots of presents and regales them with tales of her exploits.

[Horror and Satire]

Cousin that shocked the grandparents by coming out as gay on Thanksgiving.