There was a difference between Stiles doing it, and the others. He'd assumed that was obvious, but the younger alpha clearly hadn't picked up on that and Derek frowned. "I just don't-" He started slowly, knitting eyebrows together in frustration at having to explain.
Rolling his eyes, he tugged Stiles closer. Wanting to warm him up before the pack arrived. That way if he wanted to cuddle them, he could.