John had been preparing himself for the pain. Ianto, so focused on the other man's condition himself, had momentarily forgotten that in touching John like this he would be creating a connection between them. A connection that enables Ianto to feel the other man's pain.

Ianto nearly drops the pitcher of water. His hand tightening on John's wrist convulsively in response to the sudden stabbing pain in his arm, before he forces himself to let go. The feeling gone almost as quickly as it had appeared.

He lets out a long, shaky breath. Shutting his eyes for a moment to collect himself and rethinking his approach.

"Yeah. I've. Got..." He reaches shakily for the handkerchief he's set aside. Not quite moving to touch the other man again just yet.