"Troubling is one way of putting it, yeah," he grimaced, finally dropping the towel because he'd run out of places to dry. Without its distraction he felt oddly naked, which had nothing to do with the fact that he was wearing less than Kirk was (bright blue Speedos, to match his eyes) and everything to do with the fact he was feeling the most emotionally vulnerable he could remember ever feeling. He spotted the bruise on Kirk's shoulder, and immediately remembered half a dozen others that he would have been still sporting himself if he didn't heal so much quicker than the average human.
"Look, I'm sorry for thinking it was you who were glitching, that day," he said awkwardly. "I should have known better. It just felt so incredibly real. Still does, if I'm honest!"
((OOC: I assume the bruise is something Jack left behind? Correct me if I'm misinterpreting!))