"Truly, it is infuriating beyond words, but I entrust my wife to you. For the sake of our devilkind, please… impregnate her."
"I beg you as well. I know I'm just an old woman, and you might be unwilling, but please. Impregnate me with your child."
The husband and wife bowed their heads before Takashi Mitarai.
They were Rias Gremory's biological parents, named Zeoticus Gremory and Venelana Gremory.
These two, who held the high rank of Marquis among devils, were bowing to Mitarai, a mere newbie devil. Zeoticus clenched his fists so tightly that blood seeped from his palms.
Mitarai looked at them again. They appeared far too young to have a daughter of Rias's age. Despite what Venelana had said, it was impossible to see her as an 'aunt.' Though her hair color differed from Rias's, aside from that, one might mistake her for Rias's older sister. A bust even fuller than Rias's. A waistline taut and firm, unbelievable for a mother of two. Long, slender legs—perhaps devils had no concept of gaining weight.
"…Zeoticus-san, are you truly alright with this?"
"…Yes. My wife… is yours for the time being. Treating my wife as a thing is galling, but for the future, there is no other way. I want to erase you this instant, but this is something both my wife and I have reluctantly accepted. Treat her with respect. Venelana. I shall return home. I know this is painful for you as well, but please, stay well until we meet again."
"Yes… I will endure. So please, don't blame yourself too much, dear."
"Right. Farewell."
With those words, Zeoticus showed them his sorrowful back and departed from the old apartment.
Left behind were the apartment's owner, Mitarai, and Zeoticus's wife, Venelana.
For Mitarai, no words came to mind; anything he said now seemed destined to backfire.
"…I'm sorry for the suddenness. I heard about you from Rias."
"From Rias? …My relationship with her is supposed to be a secret, after all."
"I more or less forced it out of her. That girl lately has become even more beautiful than before, and when I asked out of curiosity, it led to this."
"I see… Um… Were you two serious about what you said earlier? I can understand those feelings with Rias, since she's a fellow high school student. But for an older woman like you, Venelana-san, to do such things with a youngster like me…"
"It's the truth. The fact is, our devil population is currently small. Before marrying Zeoticus, I… played around with various men. Ah, please keep that a secret from Rias. You see, our demon birth rate is inherently low. On top of that, the war caused us to lose many compatriots. As a result, our species is on the brink of extinction. Before becoming a Gremory, as a woman of the Bael family, I slept with so many men, hoping to contribute even a little to our race's prosperity."
"But… that was a mistake. I learned later that sex between devils has a diminished effect. Me bearing Rias and her brother was close to a miracle. For a pure-blooded devil to conceive a devil, we must mate with a reincarnated devil who previously was a human, and has a high stamina!"
She spoke with a sorrowful expression.
But, thinking normally, it made sense. No matter how few their numbers were, to increase their numbers, they would let another man bed his own wife.
What kind of conflict must that entail? As an involved party yet ultimately an outsider, Mitarai couldn't even begin to guess.
All he could do was fulfill their request: take Venelana and plant a child in her womb.
"Rias says you are… the finest stud… isn't that right? That yours is large, and your stamina seems bottomless. I was shocked when I first heard. A newbie devil who lives for desire. But perhaps that's precisely why it must be you."
"…Fufu, even though I'm just an old woman, for the next month… I'll be living with you as your temporary wife, as your woman. On the surface, I'll be your aunt, worried about you living alone, who came to visit."
She stuck out her tongue slightly, playfully.
Thus began Mitarai and Venelana's cohabitation…
Since they had a month—a period both short and long—they spent the first week getting acquainted, focusing on mutual caresses.
Takashi marveled at her weighty, ample breasts, played with her beautifully shaped slit that belied her history of 'playing around.'
In turn, she was shocked upon seeing Mitarai's cock and became proactive, servicing him with her mouth, hands, and breasts.
They touched each other so thoroughly that there was likely no part of each other's bodies left unexplored, like children who had just discovered sex.
And today again—
"Today is the main event. So that your husband can properly see you making a child, we'll be recording a video today."
"Ehh!? …B-but this will be the proof, won't it? Alright. It's embarrassing, but I'll do my best."
Takashi set up the video camera in a position that would capture both of them, sitting naked on the futon.
It seemed to be a relatively recent model, reputed for good image quality and long battery life. It was something his father had suddenly sent him, a device that had been gathering dust in the closet for lack of use. Since it arrived about two months ago, it wasn't dusty, and having charged it beforehand, it should last the entire night.
Knowing a permanent record would remain, her body was stiff with tension. She looked nothing like a mother and wife; at most, her appearance was that of a college girl, in a scene where she was being filmed having sex with her boyfriend.
"First, introduce yourself. Your name, three sizes, who you're having sex with, and why. Please say it clearly while looking at the camera."
"Y-yes… I am Venelana Gremory. My measurements are 108, 62, 94. Even at my age, these breasts that keep growing are a… J-cup. I am about to have sex with, Takashi-san, to make a child. Zeoticus, dear… This is proof, so rest assured."
"Wow… I knew they were huge and soft, but a J-cup? Hearing the number makes it different. Lifting them like this, they're incredibly heavy."
Mitarai consciously changed his tone. This was for the sake of Zeoticus, who would one day see this video, and for Venelana after this life together ended.
The fact that she mated with Mitarai would be a great shock to both, and he didn't wish for their marital relationship to cool. If by playing the villain, Mitarai could help them return to being a normal couple, it was his form of kindness—though Zeoticus, upon seeing this, would likely not see it that way.
Because, in many ways, this would be a shocking video designed to shatter his confidence.
"Even though you've given birth to two children, your nipples aren't discolored or darkened at all. Is that because you're a devil? They're not a pretty pink color, but that makes you seem even more like a married woman, and it's hot."
"Nngh… Please don't play with my breasts like that~!! Ahhn You're kneading them so strongly…"
Reaching around from behind Venelana, Mitarai fondled her slightly drooping breasts. They didn't have the firmness of Rias or Akeno's, but he found himself enthralled by their surpassing fullness and their all-encompassing softness.
Even though he'd been touching them for a week now, these bewitching tits captivated him every time…
...
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