The way Mattheiu's tail follows his gentle touches is a new and novel thing, and Lucifer can't help the hint of a smirk that tugs at the corner of his mouth. He remembers the sensation, feels phantom fingers tracing along dark scales, and he's pleased to note that his reaper is finally relaxing.

"Good?" It's a quiet question as he traces along the seam between side and underbelly, gently brushing over sensitive plates with a low hum. But the moment Matthieu tenses, the moment he feels his jaw clench, Lucifer draws his hand away, concerned. "Darling?"