Prompt from Candy-of-Doom: Zoro/Kitetsu swordporn, Kitetsu comes back to find himself covered in his master's blood.
Slick and warm. Those were the first sensations Kitetsu registered. Familiar and delicious came not long after. The blood of the strong, it occured to him.
Zoro's blood.
Kitetsu had always considered himself fortunate to be able to sample Zoro's blood in the past. The nick of his thumb Zoro might treat him to were moments he lived for.
He was covered.
The realization shot awareness into Kitetsu. Real, conscious awareness. He could feel Zoro's blood, the powerful, sweet blood of the one Kitetsu had chosen to obey, covering his blade.
Zoro was bleeding for him. There were no enemies, just Zoro. Zoro did this to himself and for him.
Kitetsu lost control of himself, but not in the same way as before. There was no rage now, only unrestrained joy and his feelings for Zoro spilling out from him and effecting the swordsman, his master.
They were lost in the haze of emotions and sensations. Kitetsu reveled into the blood on his blade and the feel of Zoro's touch. He could feel the pain, the sadness, the guilt the swordsman had felt. Because of him. For him.
Because he wasn't as uncaring and apathetic about Kitetsu as he pretended to be. Because he needed Kitetsu. Because he was finally feeling a fragment of the way Kitetsu had felt for him since they'd met.