Now all he thinks about is me (ability one shot)

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First time using Occlumens.

Third year. Katherine had been researching Occlumens since she was seven years old when her brothers legilimency came at full force. At age twelve, she finally started studying with a professor at her school. At the end of her third year, she succeeded for the first time...

Sitting in the classroom with the professor helping her and another professor for security, Katherine sat at a chair with her hands flat on the desk in front of her. Her eyes were shut tight.

"Now, Miss Kowalski. Like we've practice. Relax, focus on why you want to block your thoughts..." the professor said. Katherine tried to relax her harshly closed eyelids. She felt a bead of sweat trickle down the side of her face as she waited for the professor to invade her mind.

Get out of my head, Jake, she thought, get out of my head. That was why she wanted to learn how to do this, right? She didn't want her brother in her head. She didn't want his special powers to affect her. She wanted to be immune, even if he was learning how to control them.

She felt her professor use legillimens and gasped as they forced into her mind. She raced through flashbacks with her brother, until they got back to that fateful day when his powers came to fruition. She glared at him, at her family, at their oggling him and their praise. Her professor had seen this memory many times, but this time Katherine walked up to little seven year old Jacob in her mind, putting her face right in front of his. "Get out of my head."

Suddenly she felt her professors consciousness thrown out of her. She quickly opened her eyes, sweat heavy on her forehead now.

And she laughed. She still had a long way to go but, hopefully soon, little perfect favorite Jacob would have no way in.