He accepts the arm around his waist, glances around as fingers rub at his back and tries to collect himself. It's only a light touch, it's fine, and it isn't far to their apartment anyway.

"An arrangement?" he prompts, and gives an exaggerated frown -- as if mulling this over. "You mean like... you getting a job?"

You know, a job with which to pay things like medical bills. John's not exactly sure if the coalition still exists, for that matter, let alone if they'd even exactly continue paying him after the last mission they sent him on. Maybe Ianto gets some leeway for not officially having been there as security.