Kendra scoffed, "A likely story!"
At which Timothy sadly shook his head. It was clear Kendra would never accept she lost her humanity, even though there was clear sings. Like that time she watched porn with the other succubi and she thought aloud "I wish I was the one doing that blowjob, tasting their delicious sperm". Because let's be honest, while most men fantasm about blowjobs, outside of succubi few girls do the same. In fact, most are disgusted at the very idea of ever giving one.
He hesitated an instant in using his magical phone app to alter Kendra, but decided against it. Timothy always considered that, as a summoner, he had a duty to ensure the happiness and well being of his succubi, unlike most of peoples in his line of work. But Kendra did nothing but harm his business which, in turn, endangered his ability to take care of his demonesses. In this kind of cases, the need of the most outweigh the need of the few, and as such he would have to end Kendra.
To kill a demon, most people would call an exorcist. But exorcising a demon simply send it to hell. It would take time, but eventually said demon would be back. There is only 4 kind of being that could kill a demon: A stronger demon, an angel, one of god's prophets or god himself.
Thankfully, Timothy had the body of a demoness stronger than Kendra. He grabbed her by the neck, and took everything from her. He gave her soul to eat to his other succubi, divided equally between all of them. He gave a third of her magical power to Lou, the only other with a soul, and kept the other two. And her energy was shared between everyone present, even Timothy himself. Like any demon, Kendra's body disintegrated upon her death.
The fact he felt her death was the best option didn't mean Timothy was happy about it, or that he didn't feel any guilt over it. Even with the body of a succubus, he was still human.
Seeing his distress, Lou said "It needed to be done. You can't save everyone mistress, as much as you wish to."
"You don't seem too affected by her death."
"I may have a soul, I'm no less a demon. I won't feel pain over what needed to be done being done. If you had killed her without any reason it would have been another story.
…But only because I have a soul…"
Timothy had always tended to find comfort in eating when distressed which, since he took over Nalkira's body and was stuck in it, tended to manifest him fucking his succubi until he fell asleep from exhaustion. (With the stamina of a succubus, it could take day, if not week with one as high-ranking as Nalkira.) The nearest one being Lou, he started french-kissing her while massaging her ass with one hand and one of her boobs with the other. But Lou put a hand on each of his shoulder and slowly forced him to separate from her. "I much as I would love to share that meal with you, I believe you'll have to be somewhere else soon mistress."
Looking at the nearest clock he saw the souled succubus was right. And while it was perfectly accepted and even required for demons to walk around nude on the streets, humans were still expected to wear clothes, even when in a succubus body. So everyone helped Timothy dress up. After so long in Nalkira's body, he was more than able to put on women underwear and make-up by himself, but it helped speed up the process, and putting on a suit without help when you have wings is a pain in the ass, even when the suit have holes specially made for said wings.
Looking the part of a business woman, albeit one with horns, wings and a long and rope-like prehensile tail tipped with a blade, Timothy turned a last time toward Lou and said "You're in charge while I'm away. That mean you can't be the one granting the clients desires, even if it's a sexy girl," before flying to his appointment.
In answer, said succubus said "You're a spoilsport, mistress" while pouting, even though she knew Timothy couldn't hear her anymore.