Feeling this thrill for the first time, Grayfia thought she might understand a little why Xenovia wanted to train outside.
"Mmph, ohh, aahhn, yes! Deep inside... fill me up...!!"
Leaning against the room's door, the two were connected in a standing doggy style position. With Kazuki's fierce thrusts, Grayfia let out pleasured, moaning cries.
"Grayfia, it seems your frigidity has been completely cured, hasn't it?"
"Ah, yes... Even though I couldn't feel anything before, now... haahn! Ka-Kazuki-san's pe... his... his cock feels so good!!"
Though she lowered her face in embarrassment, Grayfia answered honestly, seemingly happy that she could now feel pleasure. Kazuki shot a mischievous smile at her.
"That's right... After all, you're the one moving your hips all by yourself, aren't you?"
"Eh!?"
When Grayfia hurriedly turned her head back, she saw that she was indeed the only one moving her hips; Kazuki had stopped all movement entirely.
"Ah, no way..."
Grayfia was aghast at the sight.
"You're moving your hips so earnestly... Do you like my cock that much?"
"Ahhh, uuu..."
'How shameless I am... Just when I thought my frigidity was cured, I'm moving my hips on my own, seeking out his dick... But I can't hold back anymore. I want Kazuki-san's cock! Now that I've known this pleasure, I can never go back to how I was before!'
Having never known the pleasures of sex due to her anorgasmia until now, this newfound carnal delight was like a drug, driving Grayfia's mind wild.
'Ahhh, I'm sorry, Rias. I finally understand how you all feel. Your mother was right. Once I've tasted Kazuki-san's cock, I'm already...'
Having made a resolve known only to herself, Grayfia began moving her hips on her own, pleading with Kazuki.
"Please, Kazuki-san! Move! Make me feel good with your cock!!"
"Hmm~, a little more specifically."
But Kazuki still didn't move, intent on humiliating Grayfia further.
"~~~! Ka-Kazuki-san, with your big cock... I want you to stir up my, my soaking wet pussy! I want you to make me cum so much with your dick!! Please—haooohhhhnnnnn!!"
Mid-sentence, Kazuki grabbed Grayfia's breasts and thrust fiercely into her depths. He then began sprinting in earnest, aiming to make her climax right then and there.
"Haaahn! Yes, this is it!... Aahhn, haahn, I-I'm cumming...! Kazuki's cock feels so good... nnaaah, I'm cumming, I'm cumming, I'm CUMMMINGGGG~~!!"
Feeling the hot impact even through the condom, Grayfia reached her peak and came.
She let out a scream loud enough to be heard beyond the soundproofed door...
...
...
"Haaahn, aahhn, ahh, this... it's hitting me deep inside... nnnh! I-It's so good..."
The two were fucking in the cowgirl position. Grayfia was straddling Kazuki, moving her hips with evident pleasure.
"You're doing great, Grayfia. Just like that, try moving while searching for the spots that feel best for you."
"Ah, yes... nnn, like this, perhaps... haahn! Ka-Kazuki-san's cock is hitting just the right spot... aahhh!!"
Grayfia greedily sought more pleasure, moving her hips actively and assertively. Her face was ecstatic, no longer that of a wife or a mother, but simply of a woman—no, a female in heat, a bitch.
"Aahhn, Kazuki-san, I'm about to cum... Can I cum?"
"Mmm, wait a bit. I'm close too, so let's cum together."
"Ah, yes... Together, let's cum together...!"
Kazuki also began to move, and their motions synchronized.
"Ah, ahh, Kazuki-san, it feels so good..."
"Yeah. Grayfia, the inside of your pussy feels amazing too."
From Kazuki's perspective, a swaying silver braid and what appeared to be soft, massive breasts filled his vision. When their eyes met, Grayfia smiled happily.
And then…
"Guaaah, I'm cumming!"
"Nnaaaaahhhhnnnnn!!"
With a smile still on her face, Grayfia climaxed and came.
...
Kazuki tied the opening of a used condom, filled with semen, and placed it by Grayfia's pillow.
The total count was twelve; they had used up all the condoms Grayfia had prepared.
"No more condoms. It seems tonight is over," Kazuki said.
"Already... over...?" Grayfia, who had collapsed sweaty onto the bed, raised her upper body at Kazuki's words.
"Yes. Any more would risk pregnancy," Kazuki said as he lay back on the bed.
Even though Kazuki's cock had ejaculated twelve times, it still maintained its hardness and size, standing erect. At its majestic sight, Grayfia unconsciously swallowed.
"It's alright, Grayfia. Your frigidity is cured. From now on, I'm sure you'll be able to feel pleasure even with Sirzechs," Kazuki said, smiling to encourage the anxious-looking Grayfia.
But Grayfia's heart remained clouded. Why?
Because—
'Is this the end?... That's right, I'm a married woman. I can't betray my husband or my sister-in-law any further... But, is this really okay, Grayfia? Once this night is over, you can't be with Kazuki anymore? Is this really alright!?'
Yes, the reason Grayfia looked anxious wasn't about her frigidity, but because she thought she could no longer be with Kazuki. To that extent, Grayfia had become addicted to sex with Kazuki, the first person to give her such pleasure.
...
"Grayfia, it's alright for you to seek peace and happiness, too. Sometimes, freed from being a wife, a mother, and even a maid, it's okay to seek your own happiness just as a woman..."
At that moment, the voice of her mother-in-law, Venelana, resurfaced in Grayfia's mind.
'That's right. Just as Mother-in-law said, for now, just as a woman—'
Having solidified her resolve, Grayfia brought her face closer to Kazuki's still-erect cock.
...
"Gr-Grayfia-san!?" Kazuki was shocked by the sudden stimulation on his cock.
"Habu... slurp, fumn, hmmm, mu... slurp, sluurrp... mmm, slurp…"
Even though he had just declared the end of their intimacy, Grayfia was giving him a blowjob.
"Slurrp!! Chupa, hmmm... Kazuki-san, please. Once more... please put your mighty, strong cock inside my pussy."
Grayfia pleaded after removing her mouth from his cock. Her expression was filled with sorrow and an irresistible allure.
Kazuki unconsciously swallowed at this newfound allure, something Grayfia hadn't possessed before.
"Understood. Well, since there are no more condoms, I'll come outside," Kazuki said, trying to prevent Grayfia from worrying.
But…
"No. Please cum directly inside my pussy," Grayfia stated clearly in response.
"Grayfia-san!?... Is that alright?"
"Yes. Please."
Saying that, the silver-haired MILF lay down and spread her legs wide. Grayfia's pussy glistened with a silver bush and a large amount of love juice, her labia opening and closing like a mouth, inviting Kazuki in.
"Just one request. For now, just call me Grayfia, without honorifics. I want you to treat me as your woman."
"...Understood. Here I go, Grayfia."
Saying that, Kazuki plunged into Grayfia's vagina.
"Nnn, nnaaaahhh! Something big is going in... uu, Uaaaaaahhhhh!!"
'What is this?... It's different. It's completely different from before! I can feel Kazuki's hardness and heat directly... Is it just because there's no condom that it feels so different!?'
Grayfia was shocked by the sensation of her first raw experience.
"Not... I can't take this... Just from being inserted... I-I'm cumming!!"
Squirt squirrt~~ Grayfia climaxed, her body jerking and twitching. Waiting for her breathing to calm down, Kazuki began to move.
"Hiaaaaahhhn! Wait, Kazuki-san, I just came... au, huff... uwaaaaahhhnnn!!"
Smack~~ Kazuki's cock drilled into Grayfia's pussy, reaching her cervix in one go.
"Ahiiiii! Nooo, I'm cumming again, I'm cummiiing~~~~!!"
Without a moment's pause, Grayfia climaxed consecutively. Her back formed a beautiful arch, and her entire body trembled as if struck by lightning magic.
"Whoosh, whoosh..."
Repeating only rough breaths, Grayfia couldn't say anything. Her sweaty body scattered a dense, feminine—no, a feral—scent, stimulating Kazuki's senses.
"Ah...?"
Holding Grayfia's legs, Kazuki took a position as if folding her in half, pulling his cock out until it was almost entirely out before thrusting back in deeply all at once.
"Haaaaaahhhnnnnn!!"
Kazuki thrust strongly and fiercely into Grayfia's vagina. Overwhelmed by the intense, physical pleasure Kazuki was giving her, Grayfia was tossed about like a small boat caught in a storm.
"Nnaaah, aahhn, nooo... It feels too good, my mind is going crazy!!"
Kazuki's hand overlapped with Grayfia's, which she had stretched out seeking help.
"It's okay, it's okay, Grayfia. I'm with you, so relax and entrust yourself to me!"
Kazuki gently enveloped Grayfia, who was feeling fear from the intense pleasure. Embraced by that warmth, she entrusted herself to him.
"Haa, aah, it's cumming... Something amazing is coming!"
"Ah, I'm going to cum, Grayfia! Where do you want me to come!?"
"Aah, inside my pussy, cum inside my vagina! Pour all of Kazuki's baby-making essence into meeeee—!"
Kazuki entered his final sprint, moving even faster.
"Kuuu, I'm going to cum, Grayfia!!"
"Cum! Ejaculate all of Kazuki's semen into my pussy!!"
Sluuup!! Splluurt! Byuru! Spluurt!! Spllurt!!
Kazuki's cock erupted inside Grayfia's vagina.
"Oaaaahhh! I'm cummmiiing~~~~!!"
White magma poured in like an avalanche, dyeing Grayfia's womb white.
"A, o, oooooooooooooooohhhhhh~!!!"
'Ah, amazing... I didn't know such a pleasurable thing existed... I won't be able to forget this... This is a woman's happiness... I understand why Rias and the others are so hooked...'
In the midst of pleasure so overwhelming it turned her mind blank, Grayfia Lucifuge lost consciousness.
...
In the early dawn, Grayfia, who had woken before Kazuki, used her magic to clean up after last night's passionate events while Kazuki still slept.
She dried the wet sheets, paying extra attention to the traces of her own places of squirting, and ventilated the dense sexual smell, then picked up the used condoms.
'I'll keep this one.'
Grayfia carefully stored the used condom containing Kazuki's semen in a dimensional space. After putting on her maid uniform, she gazed at Kazuki's sleeping face.
"Thank you, Kazuki-san!! It was wonderful," she whispered, kissing his cheek before softly leaving the room.
...
As an aside, Grayfia's guidance regarding the sexual lives of Rias and the others was lifted as of this day.
Naturally, Rias and the others were delighted, but no one knew the reason why it had been lifted.
...
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