how long will i love you? (as long as the stars are above you) (гет)

“Such bright coloring, Lucifer,” Amenadiel teases, gesturing to Lucifer’s suit.
It’s the grey one with the purple lining, one of her favorites. Lucifer had abandoned his jacket and rolled up his sleeves when they’d hit a snag in the case. Chloe had left him poring over the files while she made a quick coffee run.
Amenadiel is grinning. “One would almost think you're courting, brother.”
Lucifer freezes.