[ Grell idly wonders why he might not just forgo garments altogether, if that were the case - but, that can be a suggestion for another time.

Settling her head on his shoulder, in favor of the pillow, she is caught off guard by the seemingly random and startlingly innocent question. She can't help but chuckle through her breath. ]

Ah, that's a good one! I think scarlet is daring and lively, and crimson more dramatic and passionate. I might lean slightly toward the latter.