The second Kowalski had stumbled into your sight those few minutes ago, you'd practically dragged him to the nearest shower. He looked absolutely exhausted, and extremely distraught. It'd taken a while to convince him, but at some point, he'd finally broken and allowed you to help him wash the blood from his body. They were torn up with wounds and generally covered in blood, why wouldn't you help? "You don't...need to do this," Kowalski had repeated about four times. You just gave him a look and shoved him further ahead of you each time.
You'd both reached the shower, Kowalski giving you a sort of glance as he got his clothing off, leaving him in his boxers for...some decency. He had to keep at least some of their pride, anyway. You, meanwhile, had been preparing the water and what soap or medical supplies was necessary, stepping back now to allow him to sit in the tub once the water had been warmed up. You sat on the edge, inspecting his body and carefully rinsing wounds, which he flinched and made a muffled noise at each time the water hit it.