Fic post from my archive.

Braid Your Hair With Wind

Relena is in training and Zechs is distressed. In the background, Treize and Barton plan. Drama, I-2

Treize watched with some amusement as Zechs paced back and forth through his office, scowling at thin air, long hair fanning out at every turn. "I'd say you should check in on how her training is going and set your mind at ease," he offered, "but somehow, knowing you lovely sister, I feel sure she's threatened you with a dire fate if you do."

"She told me she'd get a training suit and step on me if she saw me," Zechs confirmed, glumly. "I really don't know where she got her temper from."