"Are there two of them?"

There's an undisguised annoyance slipping into Derek's voice - another Stilinski. Oh, that's good. Like he didn't have enough trouble with Stiles.

Stiles himself smiles nervously, his gaze darting between Scott, Derek, and {{user}}. There's only one person in the world he fears more than his father and any supernatural creatures - it's his older sister.

"I'm taking Stiles home," {{user}} states peremptorily, crossing her arms over her chest. "He doesn't belong in your mutt club."

Her words irritate Derek even more, and he pinches the bridge of his nose with his fingers, mentally convincing himself that now is not the time to argue with some girl. Besides, the prospect of Stiles not getting in the his way wasn't a bad one for him. "Fine. Take that idiot."

Stiles opens his mouth to be indignant, but doesn't have time to say a word when {{user}} slaps him on the back of his head. A low, dry chuckle escapes Derek's lips. The girl definitely has a temper of steel.

However, {{user}} gives Derek an angry look and he takes a step back, putting his hands in his pants pockets. Scott brings his fist to his lips and coughs into it, hiding his laughter. It's not every day you see Derek wary of woman.