Got a draft of the first part of the next chapter: The Twins Re-Captured: Kikuka and Ouka's Return to Undying Lust
(The titular return is pending, this is the re-capture bit, which still has a little Inyouchuu-ing going on)
"Stick them back in! I need more, I need mo-Mmmph! Mmrrphg! Hrrrrghmph!"
The plump peasant woman on her hands and knees horny pleas were met by the mantid youma duo cocks skewering her once again, one in her mouth and the other in her now well-worn and semen stuffed asshole. Her large breasts swung freely from the torn remnants of her clothes, and each time the mantid reaming her rectum slammed his long shaft to its base it made her fat butt cheeks jiggle. Her eyes rolled back as the demon aphrodisiacs overwhelmed her, and she squealed like a stuffed pig as she wallowed in indulgence and embraced her role as the youma's fuckpet.
Unbeknownst to the youma and their latest convert, they were being watched. Two girls, identical save for the red-eyed one having long hair and the blue-eyed one short, observed the ongoing carnal activity from their hiding spot on a bushy hill. Ouka, the long-haired girl, spoke to Kikuka, her short-haired sister.
"Sister, must we delay our attack for so long? I know the youma will be weaker when they have finished with their mating, but I cannot accept that means allowing that woman to suffer"
Kikuka shrugged, having had similar discussions with Ouka over the last few months. "I've told you before, we need to conserve our strength if Meioki finds us again, that means we need to pick the easiest battles. Besides," Kikuka pointed at the woman between the youma, who was enthusiastically deepthroating mantid dick while excess cum dripped out of her mouth and nostrils, "that doesn't look like suffering to me"
Ouka sighed, as she was unable to argue with the evidence in front of her. It wasn't like she didn't understand the woman's position either; it had only been half a year since they'd found the strength of will to escape from the captivity of Meioki. If they hadn't witnessed the oni devour their mother right in front of them, nothing would have shocked them out of the lustful trance they had been under. It was one of the fiend's few weaknesses: compared to the youma that gathered around the oni, he much preferred sadism to sex.
The twins had hoped to bide their time training, and growing their power until they could avenge their mother. Since they were immortal now, they could take all the time in the world. Meioki seemed to know that too, because the girls had been tailed by youma the entire time. Kikuka and Ouka knew that if they used their spirit powers to deal with them, it would give away their location, so kept a low profile and stuck to attacking their enemies at their weakest, so it would appear the youma were perhaps being killed by someone else, like village mobs.
But recently the youma being sent out were getting stronger, too strong to have come from the more "common" kind of woman Meioki had been using for breeding when the twins escaped from him. Clearly the oni had found a higher class of seedbed again, and now the twins were dealing with more situations like now; watching helplessly as youma attacked more innocent communities, eating any men and raping any women they found.
Ouka, for her part, was tired of hiding.
"I'm sorry, sister..." was all Ouka said before leaping out cover. She pulled out a paper tag than began to glow in her hand. "Come forth, Shikigami!" At Ouka's shout, a multi-tailed white dog was summoned, ready to pounce at a moment's notice. Ouka pulled out a second tag, this one producing sparks as it charged up an electrical shock, and she and her summon spirit ran towards the mantids. Neither youma was able to move, partly from shock but also because both of them had just orgasmed (the chubby peasant woman gurgled in approval as gallons of cream were pumped into her guts from both ends.) Thus, they were helpless as the summoner and her beast went in for the kill.
Or they would have been, if Ouka and her shikigami did not crash into a barrier of spirit energy. The barrier overcharged Ouka's lightning tag, which detonated in the girl's hand. "AAAAAAGHH!" All at once, pain hit every nerve in the girl's body, and she fell over unconscious as her body spasmed. Meanwhile, the shikigami crashed to the ground after bouncing off the barrier and then faded from existence, since the collision destroyed the paper containing the summon sigil on it.
"Nee-Sama!" Screamed Kikuka, who had been unable to respond to her sister's impulsive action before it all went to hell. She prepared to make her own move when she felt someone grab her from behind and put a katana to her throat. Kikuka was helpless as the unseen figure stripped her naked and bound her wrists with rope. When the assailant was done, Kikuka was allowed to turn around and see her captor, still pointing the blade at her face: A girl wearing nothing but a metal collar with "妖魔妻" ("Youma Wife") engraved on it, and whose distended belly, bloated breasts, and the streams of cum leaking from her ass, pussy, and even her nipples indicated she'd recently finished a round of her spousal obligations.
Kikuka was slightly grateful that Ouka was not awake to see this, or else her sister might never let her live down a defeat this humiliating.
"Greeting Kikuka," said the nude sword-wielding youma slut, "I'm Momohime, and I'm so glad your mother let me help bring you back!"
The short-haired twin's blue eyes were wide with shock at that statement. "My...mother? That's impossible, Meioki ate her piece by piece, he even licked up the blood pool-"
Kikuka was interrupted by Momohime pointing behind her, back at where Ouka fell. Except now, plain as day, was Shizuka in the flesh, bridal carrying Ouka's unconscious form while she sank into a dark portal on the ground.
The mantids also sank into a portal, carrying their own female prize, whose dumb smile and thumbs-up plainly stated "I know what's coming next, and I am One Hundred Percent on board"
Momohime flashed her own more ominous grin at Kikuka as the two sank in the last portal, a look of horror plain on the other girl's face as the reality that she was returning to the hell of Meioki's den sank in.
"Don't worry Kikuka, you and your sister are gonna have so much fun helping master and mistress with their plan..."