Send me "kiss me" and I'll generate a number 

 34. Between shoulder blades

It wasn’t pity. It was something else entirely. The mark on her back. Of course, however helpful it was to him and his alchemy, it seemed a curse to her. And, he did feel sorry for her, but it definitely wasn’t pity that controlled his actions towards her.

Seeing that mark again, with the burn marks too, struck something within and made him feel anger rather than sorrow and pity. Made him want to try and help her and burn off the skin marked with it. However, instead, he stepped behind her, her shirtless state startling him at first (without her even knowing that he was in her apartment, which he had forgotten about ), and lowered his head to kiss in between her shoulder blades, a specific place between two burns that he had created.