This family is the biggest of the mane six, and of my other families in general. But with a big family, comes a big history. so here we go.
%%%%%%%%%%%%%%%%%%%%%%%%%%~
So Twilight goes through the mirror, meets Sunset, all the shit of the first two movies. But after the defeat of the sirens, Twilight decides to bring them back to Equestria to study them, since their gems were broken and they haven’t been seen in Equestria since Starswirl’s time. And Sunset, having a bit of a crush on the alicorn, decides to go with Twilight back to Equestria. They come back, and Sunset goes to live with Twilight in her castle. After some time, Twilight starts to fall for Sunset. But Twilight being a anxious waifu, she doesn’t confess. It takes Sunset almost dying in a fire in the castle kitchens for her to confess her feelings. Sunset reciprocates, and they start dating. Later, all the shit with Starlight happens. Starlight comes to live with Twilight and Sunset. After Twilight and Starlight start being closer friends, Starlight develops feelings for Twilight. But she knows she’s in a relationship with Sunset. So she represses her feelings for a while. Then Twilight says something about being okay with multiple ponies dating each other, and then Starlight has an idea. She has a huge crush on Twilight, and Sunset is pretty hot, so why not date both? She brings up the idea to Twilight and Sunset, and they love it! They both had a bit of a crush on Starlight, but not enough to break them up over it, so they all date each other. Then they all get married years later and have magic babies.
%%%%%%%%%%%%%%%%%%%%%%%%%%~
I am a crap writer. But here are the bios of the kids!!

Name: Starshine Blitz

Nickname(s): Blitzy

Parents: Twilight and Starlight

Sibling(s): Starswirl, Eclipse

Gender/Sexuality: Cis Female Biromantic Asexual

Current Residence: Ponyville

Special talent: Magic

Occupation: Heir of Princess of Friendship, Student

Name: Starswirl

Nickname(s): Swirly

Parents: Sunset and Starlight

Sibling(s): Starshine Blitz, Eclipse

Gender/Sexuality: Cis Male Heterosexual

Current Residence: Ponyville

Special talent: Magic

Occupation: Student

Name: Eclipse

Nickname(s): Lipsy

Parents: Sunset and Twilight

Sibling(s): Starshine Blitz, Starswirl

Gender/Sexuality: Cis Female Pansexual

Current Residence: Ponyville

Special talent: Magic

Occupation: Student