OH, that's WORSE!

You REALLY don't want to be cut by that

So the message is...rapiers are shit?

I think the simple response is: OW.

Was it in her ass, or pus?

hotmakiroll said in comment #2569285:

So the message is...rapiers are shit?

If she was imitating a character who magically pull a katana out of her chest without hurting herself, the implication is that she is magically pulling a sword out of her privates, not that it was physically stuck here.