I Can't Lose You!

For CrazyPerson160

Yukio goes out on a mission. Things go south. Rin is terrified that this is when he will actually lose his brother. When Yukio miraculously pulls through, Rin knows what he must do.

RinxYukio
Or possibly YukioxRin.
We'll see who tops who.

My first attempt at a real lemon. Let's try this, shall we?