Because that's what it is. ( metal fingers curl in to a tight ball, at the same time muscles in his forearm tense. like they're telling parts to move that aren't quite there anymore. ) It's scar tissue on top of scar tissue. I can't even stomach to look at it.

( it's a reminder of what he once was. when he was whole. the prosthetics work. they do the job his missing fingers once did. but it's nowhere near the same. )

It's disgusting.