From Stardust to Sentience

"Do the MXes have a sense of humor?"

"What?" Dorian asks, brow furrowing. "No. They don't have anything," he adds, scorn obvious in his tone. "Why do you even ask?"

John gives an awkward half-shrug. "Thought I had one sassing at me last night, is all."

(takes place later in the same timeline as "Ghosts in the Machine," but that fic is not required to understand this one.)