Since Kurokiba already knew Azula's story she wasn't really surprised. But when told from her point of view Kurokiba felt sad at how tragic her life was. She was loved under conditions, her father wanted her to be a perfect soldier ready to give her life to him. Her mother feared her more than she loved her and her brother only cared about his honour and destiny. It was also partly her fault for shutting everyone out of her life, she had made a choice and it came back to bite her, hard.
She did her best and instead of praising her hard work people attributed it to her being a prodigy. Her fragile mentality and need for validation had led her to blindly believe such lies. She disregarded her own efforts, hard work and attributed it to her being perfect, talented but most of all being Ozai's daughter.
She'd only realized it now that she was his slave, he used her to fuel his interest and he never even gave her anything in return. It was also ironic since she had just accepted to become Kurokiba's eternal servant a few minutes ago. But she didn't mind. Without someone to be the centre of her world Azula would simply fall apart. She didn't know how to exist besides what she was taught and she was taught to be a tool. Besides, she felt it would be different with Kurokiba.
...
Kurokiba's turn also came, she told Azula about her story ever since she woke up in an abandoned warehouse covered in dirt and shit. How she had met a certain feline, her power to form strong bonds that can literally alter reality and her most guarded secret, her need to eat human/yokai/devil/angel flesh for nutrition.
"So that's what you've been hiding?" Azula asked with a little shock, pity and an odd sense of intrigue.
"Yeah, I know how disgusting it is. It's my greatest shame." Kurokiba spoke with sorrow as she unleashed her kagune and her eyes turned black and red.
Azula stared with interest, she watched the two kagune swirl softly like tails. Seeing how fragile, insecure and ashamed Kurokiba was Azula was in outrage. How could she be ashamed of such beauty, she was insane! Her need for human meat wasn't by choice either and Azula wasn't one to judge. She knew she was capable of doing way worse if the situation called for it.
"You look stunning, I don't think I can ever get enough of this sight." Azula muttered subconsciously.
Kurokiba smiled and hugged her, they pulled away and stared deep into each other's eyes. A twisted love, lust and perversion gleamed within both their eyes as they leaned in for a deep passionate kiss.
Moans resounded within the room all day and night as the two explored every inch of each other's body. The smell of steamy and depraved sex lingered within the room as the two finally fell asleep in each other's embrace.
...
The next day came. Azula woke up, more cheerful than ever she hummed happily to herself as she felt content for the first time in forever.
What she experienced, nothing could ever come close. Kurokiba's simple touch could send her to the edge of pleasure, her rough and animalistic instinct dominated Azula and made her feel as if she was just a toy for her amusement, she'd only show this side to Kurokiba though.
She had visible bruises all over her body as she strutted around the apartment naked. Kurokiba sat on the couch and would occasionally looked at Azula who was moving her hips hypnotically and seductively without even noticing.
Kurokiba's instincts screamed at her to push her down and make her cum until she was an inch within her life.
Kurokiba eagerly did just that. The duo went at it for days until a week passed with them being all over each other and engaging in the most depraved acts.