Porthos gives Athos a curious stare, because this is something he has wondered. "Did you know about us?" he wonders. "Or, rather, how long did it take you to figure us out?" Because Athos is clever and he must have known, but Porthos finds himself now wanting to hear. He slides his palm up and down Athos' cock as he readies him, happy to be so close and comfortable with the both of them.