You might need to take it easy tonight, even if you feel impatient! Things like this are no joke, you know?

[ bodies are fragile things, even if vash is made sturdier than most and can take a bit more beating, it's still not fun to have aches and pains - not that he isn't used to it.

putting a hand on the other's shoulder to lean him forward, vash prods along the lower back with his mechanical fingers, frowning in concentration. ]

I think I could help a little, but you might want to see a proper doctor for it, just in case!