John's smile widens as Martin visibly relaxes: looking, for a moment, like he's actually enjoying himself. But when he opens his eyes and takes in John's current configuration, a flicker of doubt crosses his features, and he starts in on a vague apology.

John shrugs in turn, a full-body gesture employing both knees and shoulders. He isn't that uncomfortable on the floor, and if he was, it'd be an easy fix. More to the point, there's really no better option. And he rather likes being down here, as near to sharing the experience as comfort and practicality allow.

"Would it be more dignified if I sat on the loo?" he asks, attempting a straight face and not quite managing it.