Katniss
There is nothing she can do for him, or at least nothing that he will let her do for a long while. He stands there with blood dripping to the floor refusing to even look at her. It doesn't bother Katniss, maybe back when they first met she would have been afraid of him but now Cato is a part of her life and she knows he is hurting.
He only breaks things when he is angry, but he bleeds when it hurts. It is nearly an hour before he lets her pour rubbing alcohol on his hands. He never moves. Katniss feels helpless and she hates the feeling. So she tries something he did for her once.
He comes to the bed without a word. She pulls off his clothes with out a word of protest from Cato. Katniss is too nervous to take anything off herself because she feels exposed already.
The first kiss is lifeless. By the fifth Cato is responding but still not fully there with her. Take a breath to be brave Katniss puts her hand down his pants to wrap around the hard length.
Cato jerks up in response suddenly completely with her. She runs her hand down the velvety length and he clenches his jaw.
"Katniss." Cato's voice is deep and raspy. There is a plea in his tone.
"Yes." She smiles feeling powerful. With each stroke his breath comes out in shallower gasps and his muscles strain. He took her kisses with fever now his hand crushing her hair to her scalp.
With each stroke he grew tenser until finally Katniss increased her speed. Cato shook once, his entire body joining in the movement and something warm spread down her hand.
The relief on Cato's face is worth it. The way he kisses her after makes the stuff on her hand nothing. Katniss knows now that Cato had his own twisted knot and she also knows how to get rid of it.
In the morning they prepare to go to four feeling a bit better.
Just FYI all of these will be Katniss point of views, I have no idea what it is like in a guy's head for this stuff so I am not going to do them an injustice by trying to make it up.