[Counterpoint: He 100% deserves this, but he may have gotten himself off the hook with that line. For now. At the very least, he's gotten a laugh out of her, surprise surprise!]

Heh. If I could believe that from anyone, it'd be you, Rex.

[And she has calmed down, it would seem, going back to that more delicate touch as she finishes up his cheeks, now moving on to chin and neck. (So it's probably a good thing her mood's lightening, all things considered.)]