Hestia, as Hades found out, was exactly like her mythological counterpart, always happy and wanting to bond with her family. There was just the issue that she was very clingy, and always wanted to spend time with him. Of course with the issues of the other gods of the Greek Pantheon that wasn't too bad. By raising her he had also discovered something very interesting.
Either the time in Cronos's stomach was different, or gods grew up very fast, as it barely has been three months and Hestia was already an adult in the prime of her life. She was also beautiful, like incredibly beautiful, red hair and amber eyes, fair skin, well round breasts, and ass. It was a shame that she would remain a perpetual virgin. Through maybe he could change that, making Hestia fall for him wouldn't be an easy task, though considering who were the ones that tried in the myth (Apollo and Poseidon) it wasn't that hard to see why she decided to become a virgin goddess.
As for the fact that she was technically his sister, he didn't care for incest and besides this wouldn't be the first time he slept with a close relative even if was only because she wanted to get back at her husband.
He had also encouraged her to train with her powers. Hestia could control both flames and heat, as well as generate it, she could shape them with either weapons or constructs, she had also shown him her true form, which is an orange mass of thermal energy.
He had also decided to wear clothes now that he wasn't alone, even though he was rather proud of his new johnson, he had been rather well endowed in his previous life, but his new one was both larger and thicker. He created his clothes from literal darkness, the task proving to be rather easy all things considered. Hestia had decided to follow his example, and as much he wanted to look at her naked body, he still let her do it, it took some time but she eventually made a red toga for herself, which by way only worked to make her more beautiful.
It was a really good thing that, unlike a certain god, he didn't think with his dick.
Food was also still arriving in the... stomach (It was very weird when he started thinking about it), which kept both him and Hestia without the pains of both thirst and hunger. Then as he was talking with a Hestia he felt a rumble and saw a small green bundle fall from the throat.
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Hestia loved her brother, and he loved her back, though she didn't know which type of love she felt for him. Her brother was kind to her and his presence always made her happy, but sometimes she wanted more, sometimes she would stare at him for longer periods, her gaze focused on his hard muscles and the thing between his legs, and she felt an unknown heat between her legs.
She was confused, so very confused, but she didn't know if she should talk with her brother about it, as the topic made her embarrassed. Her brother had raised her, and also told her where exactly they both were and who put them there. Suffice to say Hestia was very conflicted about it
Then when she was talking with her brother she felt a rumble and saw something green fall from above from her father's throat. Dark tendrils immediately arose to grab the object and gently brought it to her brother, who started to inspect it, before turning to her.
"Hestia," The tone of his voice sounded different "Say hello to our sister Demeter" She froze a little before she quickly moved towards her new sibling. Her sister, Demeter, was awake and bright green eyes stared at both of them. "Hello Demeter, I am Hestia your older sister" The little one only gurgled back as a response that made her giggle.
"Come sister, I think there is still food left for her to eat" She beamed at him, happy that they have a new sibling, through wherever she looked at Hades holding Demeter she felt an unknown feeling.
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Hades mentally sighed as he watched Demeter drink the Nectar. He didn't expect that she would appear so soon, this changed things somewhat, not that much but still enough to make him rethink things. If he remembered correctly the next one to arrive would be Hera, then Poseidon, and after that the stone that Rhea had fooled Cronos with.
This meant that he would have to deal with three of the original Olympians that were very volatile, Demeter he could understand, motherhood could change many women, Hera and Poseidon on the other hand would be a problem if they were like their Mythological counterparts.
He decided to wait and see what would happen, after all, after he escaped from Cronos's stomach he would have to fight a divine war.