Derek doesn't suspect that who knows how many pounds of muscle and flying cat fur is going to jump at him, but it should have been obvious. Teenagers, he swears.

He takes her in the chest, making a loud grunting noise as his hands immediately go to her front legs. He backs up, stumbles. His face shifts, more wolf than man now, eyes glowing red.

There's power in his muscles, behind his actions. His human frame belies the strength he has, and while she's big, powerful, so is he. It's not meant to be particularly threatening or to hurt her, but when she smacks against him, he throws her back to the ground.

There's a brief flash of a grin on his face.