A casual shrug from the Alpha here. "There wasn't really any other reason to." He's doing it - mostly - to get under her skin. Two can play that game; it's just that his methods are a little more questionable than hers had been. A lot more questionable. Scott had thought the same thing, when he confronted Derek about turning Issac, Boyd, and Erica.

"But it's the medication that's keeping you from rolling around on the ground all day. Equal parts control and your animal brain." So, yeah, he might know a bit about this. He was curious, and knowledge for him and his pack is better than none at all.

His pack of... one. Barely.

Derek has no control on his life, either, but he's not about to tell her that.

"Not really."