Ah, yes. Aramis remembers these when Porthos wore them.

They're so rough. He holds them up, then shrugs. It isn't as if he can keep wandering around the hotel with his own trousers falling down.

Not thinking to change somewhere else (after all, they've seen each other sans trou more than once, of course).

He licks off the big boots, then only needs to let the heavy leather fall, and step out of them as he steps into the rough trousers. How strange they feel against his legs. Odd.