She decides to tell father

Sansa decides nothing would be sweeter than telling father.

"I'm sorry Bran, I have to tell Dad. This is unacceptable!"

"NO!" Bran whined, falling to his knees. "Please, Sansa, I'll do anything! Just please don't tell him."

"If you didn't want me to tell him, you shouldn't have been peeping!" Sansa shot back, turning her back on her brother. This gave him a great view of her ass, and even in this predicament he couldn't help but stare.

"If you are staring at my butt I'm going to kill you!" She growled, making him recoil in fear. "Now scram! You've already ruined my morning!"

Defeated and rejected, Bran stands up and runs out of the godswood, tears in his eyes. He couldn't even imagine his father's rage, and couldn't even bare to think about it. Leaving the godswood, he ponders what he should do to keep his mind off his impending doom.