Kira's reassurance was no where near enough at that moment. He saw nothing of his friend there, and he wanted to panic. Scott always had Stiles. That's how they were from day one. They were tied to each other. He was worried about her too, this stranger who knew them, and he kept his distance in case the nogistune tried to make an example out of her. Damnit, he could use his pack right now, he needed Derek. Even Peter was looking like a viable option in this instance. The distraction about Allison and Stiles only earned a flicker in his eyes, but he knew that was no where near the truth.
The fly, that was beyond creepy, and he growled, his hand snapping up to catch it in his hand. Whatever this was, it wasn't going to infect him. "Kira, it's okay, I'm going to figure this out. Stay calm." He followed fake Stiles at a distance, not breaking eye contact. Looking for a sign or any weakness. It hurt, the idea of what was happening to Stiles. "You're not going to win. We'll stop you," he said, low and menacing. His wolf was coming forward, red eyes bright, the alpha. He felt like he might kill whatever this was as soon as it was out, and that was rare for Scott. He always tried to find a way around violence, or at least fatal violence.