"Laura, the baby just hit me!" wailed a voice from the living room.
Laura sighed and left her spelling homework on the dining table.
"Okay, what happened here?"
"I was building a castle when baby knocked it over and hit me!" Her brother said, face red.
"A-guh?" Cora gurgled, and threw the wooden block she was gumming.
It hit Derek’s leg, and his face crumpled. "She did it again!"
"Derek," Laura put on her long-suffering big sister voice. "You're five
. How will you survive kindergarten if you let Cora bully you?"
Derek rubbed his eyes. "But you'll be there, Laura."
Answers fan_flashworks' Rough prompt.
A/N: Belongs to the same 'verse as "Hi My Name is"
(Stiles, Jackson & Scott, G, 100 words)