He does, in fact, enjoy it, and even laughs, and though it's obviously a happy sound, it isn't a very pleasant one for someone else to listen to. "Oh gosh, Malin! Even your tongue is all warm." He doesn't find it particularly disgusting-- after all, it's just spit, and it isn't as if it can hurt him-- so he just ruffles her ears. "I didn't know that was possible. You're going to have to show me your last form sometime, so that I'll recognize you then, too. And if you're going to be using this one, maybe I'd better get a bigger door for you...."

The current pet door definitely won't fit a wolf, even if it fit the fox just fine.