Britney Spears is continuing her public feud with sister Jamie Lynn.

Last night she said she should have slapped her sister and her mom.

She called out her sister, writing, “You selfish little brat!!!”

She called her sister out for her “degrading” lies in her new memoir.

She said she was also “shocked” by the way Jamie Lynn talked back to their mother.

Britney also accused her sister of shutting her out when she needed the most.

Fans supporting Britney for speaking up against her sister’s memoir.

“Speak your truth, Britney,” one fan commented.

Jamie Lynn has yet to respond to Britney’s post.