Grayfia stood up from her chair.
"You want my body, then," she said. "Very well. I considered such a possibility."
Grayfia grabbed the laces that kept her collar tied closed. She pulled on them, loosening it, and shed the top part of her maid garb. The dress fell away. Harry WOULD say it was shocking to see the lingerie underneath… But it wasn't actually the first time that he laid eyes on it. When she got doused in melted ice water on his front lawn, he'd gotten a pretty clear view under her clothes.
That said, it was different to see her standing there in literally nothing but her underwear. She was blessed with the massive mammaries that seemed to be the norm for devil women, at least in the ones Harry had met thus far. Grayfia's torso was shaped like an hourglass with thick thighs beneath it and a slender neck on top. Her maid headdress remained in place. Harry observed that her underwear matched her eyes, both of them mimicking the shade of her hair. Something about the gray motif made her eyes stand out brightly.
"I'm used to serving. I can easily do it this way for a single day," Grayfia said.
Although her voice was calm, it carried an undercurrent of steel. She was of the opinion that Fleur was trying to break her. It wasn't a bad assumption, all things considered.
By declaring her acceptance so confidently, Grayfia was saying that she would follow every instruction, but Fleur still wouldn't get what she wanted. Harry's wife smiled at her.
"My 'usband's member eez un-sucked," Fleur said. "Rectify zis."
Grayfia turned toward Harry. As ever, she showed no outward emotion. She still knelt in front of him, observing his dick with a critical eye.
She looked back at Fleur. "It is already wet enough. There's no need."
Fleur came over, smiling brightly, still carrying a dildo in her hands that was as big as a club.
"You are saying two very difeerent things," Fleur said. "Eez 'is penis wet, or eez zere no need to suck et?"
"Oral sexual interactions are a form of foreplay designed to facilitate coetus," Grayfia said. "Although they can be pleasurable on their own, they are still a tool for the truly purposeful act. As his penis is already properly prepared, there is no need to engage in oral sex.
Fleur sighed deeply. She snapped her fingers, which proved to be an unspoken signal to Akeno, who seemed to be her personal assistant today.
Smiling sultrily, Akeno stepped up and helped Fleur shed the straps of her black leather dress. Akeno also had to give it a pull to help lift it over Fleur's head; it was otherwise stuck on all those veela curves.
Fleur was naked beneath her dress. She quickly set about fixing the strap on over her crotch, doing so with a noticeable degree of seriousness.
"You are ze victim of a gross misunderstanding," Fleur said. "I take eet back. I do not want you to suck my 'usband's cock."
"Shall I remove my undergarments?" Grayfia asked.
"Non! We will still begin with your mouth." Fleur snapped the final strap in place. The phallic obelisk jutted out above her pussy; Fleur reached down and grabbed the top of Grayfia's head.
"Today, I will teach you ze art of sex," Fleur said. "Open wide."
Although Harry was the one who made the original bet with Grayfia, it seemed like the maid had no problem accepting Fleur's orders as if they were his own. Perhaps she saw Fleur as the "Lady of the House" in this situation where Harry was the master. Frankly, he could only guess about the interior thoughts of such a powerful, beautiful woman that voluntarily chose the role of a permanent maid.
As soon as Fleur commanded it Grayfia unhinged her jaw. Fleur smiled viciously. Her long fingers tightened in Grayfia's hair.
Queen strength or not, Harry knew from interacting with her that Grayfia was far physically stronger than his wife was. Whatever boost Fleur had gotten from the evil piece was one shared by Grayfia, who was an extremely powerful pureblood devil on top of that. If she wanted to, she could've resisted Fleur… But she didn't.
She let Fleur pull her head forward and shove her mouth straight down on the dildo.
Grayfia made a very quiet noise that sounded a bit like "Urrrr." Frankly, it was a testament to her stoicism that she only made that much noise. Fleur had just powered a remarkable amount of rubber straight into Grayfia's throat.
Rather than continue holding her hair, Fleur moved her hands to the sides of Grayfia's head. She cajoled the Underworld's strongest Queen through the blowjob, pushing Grayfia hard without ever asking the impossible.
Slowly, under the watchful oversight of Fleur's dedicated fingers, Grayfia fell into a rhythm.
"It goes so deep, does eet not?" Fleur hummed. "Feel it, down in ze throat! My 'Arry's does ze same thing… Do not zink about zat for now, though. Move your lips… your teeth… Your tongue!"
Gradually, Grayfia started to make louder noise. "Urp! Urp! Urp!"
Although Fleur said Harry hit the same places, he had no shame admitting that the toy she and Akeno had procured was even bigger than his dick. Slightly to the side, Rias watched her sister-in-law garbed in very little, struggling to absorb a synthetic penis with her throat. Rias's expression was strange. She didn't avert her eyes or leave, though; Harry supposed that if she was willing to fuck him in front of Grayfia, she didn't mind watching Grayfia get busy in return.
Meanwhile, Fleur was cooing at Grayfia.
"Focus. Stretch ze throat. Relax into ze motion. Yes… Yes… Yes! Are you starting to see?"
No amount of stoicism was able to keep Grayfia clean in these circumstances. Although she managed to keep her voice limited to a very subdued volume, she could do nothing about the saliva spilling out, nor the way it dripped all over her tits, turning her lingerie see through. In short order Harry could see Grayfia's pink nipples poking through the translucent material covering them.
Fleur looked Grayfia dead in the eyes, and Harry even considered the idea that she was using legilimency, because Fleur seemed to decide that Grayfia had achieved some sort of enlightenment.
"You understand eet now," Fleur said. "GO."
She let go of Grayfia's head. To Harry's surprise, the silver haired maid started by lurching her head off of Fleur's fake penis.
Grayfia grabbed the dildo around the base and stroked it with her hand, as if it had any sensation. She stretched her neck and very quickly shoved her head down Harry's dick, the very action she frowned upon as useless just minutes before.
She pumped her head with a fervor, spilling even more spit onto her titties. Grayfia's face was serious and composed, yet her actions were desperate and almost deliriously horny.
Harry looked over at his wife, silently queering how she'd changed Grayfia's style so much in such a short time. Fleur merely giggled, grinning victoriously.
The fact remained that somehow, Fleur had brought Grayfia over to her side of the argument. The gorgeous devil sucked Harry off like it was her favorite act in the world, then switched back over to Fleur.
Heedless of whether it was an unfeeling toy, she sucked at Fleur's strap on, stroking Harry's dick with her hand. Harry breathed out heavily, acknowledging that Grayfia's fingers felt just as good as her mouth did.
"My, my!" Akeno said, watching Grayfia switch back and forth between the real and fake dick.
"I didn't know you had this side to you, Grayfia," Rias said, sounding a little bit shocked.
"I'm sure you surprised her earlier," Harry pointed out.
He winced a second later, and Rias giggled as she noticed. Harry was ready to cum in Grayfia's throat, who was sucking him off in a ready-to-recieve position.
He fed her his load directly down her throat. Grayfia rolled her weight back on her knees, her eyes hazy. Her mouth was open, full of cum that she hadn't been able to swallow.
Before she could recover even slightly, Fleur commanded her husband: "Lift 'er!"
Harry scooped Grayfia into the air. Fleur yanked Grayfia's bra off her body and tossed it away, then snapped the thong that Grayfia wore. The ease Fleur managed that minor feat with was a reminder of the strength her evil piece granted her, prowess that Harry was confident his wife wasn't done showing off, given that her strap-on was still fixed in place.
"Spin 'er around," Fleur said.
Harry turned Grayfia so that her ass was to him, those thick cheeks rubbing him above his crotch. He had a hand under each of her thick legs, holding the inside of her kneecaps. Harry held Grayfia up, which had the side effect of spreading the lips of her pussy slightly, granting a clear view inside.
Fleur stepped up to Grayfia, standing so close that their massive breasts kissed each other, going flat as they pressed together.
The tip of Fleur's strap-on jabbed the entrance to Grayfia's cunt. Even the icy queen couldn't entirely quell the quiet moan that left her lips.
Fleur rubbed Grayfia's cheek, who looked back at her with unreadable eyes. "You did a very good job getting 'Arry ready. Now, eet ez time for your reward. Mon amor?"
"Yes, Fleur?" Harry asked.
Fleur leaned to the side, fixing him with her bright blue eyes. Her smile was now deceptively innocent. "Let's break 'er, ze same way zat we broke dear Daphne."
Now THAT was a night Harry could never forget. It was years ago, now. One of their first joint escapades, in truth. He remembered exactly what the fun that night had entailed… Including which hole it involved.
"You may want to grit your teeth," Harry told Grayfia apologetically.
A second later, the entire length of his penis was sheathed straight up Grayfia's shitter, stretching her asshole in a way it had assuredly never been treated.
The penetration was compounded as Fleur moved her own hips forward, shoving the dildo attached to her all the way up Grayfia's pussy. With both of her holes being stretched so much, Harry could almost feel the bulging of Fleur's thrusts in time with his own.
"By all that's unholy…" Rias breathed, which was apparently the devils' version of the phrase.
She was so shocked by what she was seeing… And aroused by the idea of herself in that position… That she leaned back, pressing her body into the room's wall, and sank down while touching herself.
Akeno was watching too. She started rubbing her own tits through the leather dress that she was wearing. The bag she entered with was still nearby, and she glanced at it.
"Would you like a few more of the toys we acquired, Mistress?" she asked. "I still see a hole that could do with filling."
"Mistress" was apparently Fleur's codename in this activity. When Akeno spoke of an empty hole, her eyes were clearly locked onto Grayfia's mouth, which had been opened up wide to moan and gasp for air. Fleur, however, shook her head.
"Zere eez a very special filling for zat 'ole!" she said. "Would you like to see eet?"
Akeno shivered with pleasure. "Please, show me!"
That was all the prompting Fleur needed to kiss Grayfia hard.
Harry was let down slightly by the position he was in; he wished he could have seen every angle. He certainly her the deep slurping and sucking sounds. Fleur, it seemed, wasn't interested in just CARESSING Grayfia's mouth, she wanted to vacuum up all the cum Harry left in there, bullying Grayfia's tongue in the process.
Although Grayfia was obviously a far more powerful devil who'd seen true war and come out victorious, Fleur was a master of the bedroom kind of warfare. Despite being a mother, Grayfia was surprisingly on the innocent side by devil standards.
Frankly, she stood no chance.
Almost immediately Fleur was in the dominant role, leading the other woman through the kiss while fucking her pussy hard. Harry was deep in Grayfia's ass, a feeling that was surely uncomfortable but pleasurable to an even greater degree. He couldn't feel when Grayfia came except by noticing when and how her body would shake. Grayfia managed to stay as subdued during sex as Koneko had been, although just like the stoic rook, Grayfia eventually hit her breaking point.
"MMPH!" Grayfia squealed, moaning loudly into Fleur's mouth. The corners of Fleur's lips curled up even as she kissed Grayfia. An immense shudder traveled through Grayfia's body, vibrating her tits and making them shake Fleur's bust in turn. Harry picked up the pace slightly, wondering if today would be enough to alter the shape of Grayfia's asshole.
Fleur leaned back, preparing to say something, before getting distracted by Grayfia's expression.
Without Fleur's mouth acting as a stopper, Grayfia's tongue rolled out. Her eyes went up, taking on a true ahegao look that couldn't have been any further from the Queen's usual persona. All of her toes had curled up on her feet like she was trying to make fists. Fleur pulled her dildo out of Grayfia for a moment just to watch Grayfia squirt.
"Magnifique!" Fleur declared.
She slammed her strap on straight back into the silver haired beauty, piercing her straight to the womb, and resumed fucking her at the same time as her husband.
While Rias masturbated and Akeno giggled pervertedly, Harry took stock of the changes they'd already created in Grayfia's demeanor. He wondered if perhaps the Underworld's Strongest Queen had underestimated who she was getting involved with when she committed an ENTIRE DAY in their bet.
If they could do all of this in under an hour, what would she look like in eight, or even sixteen?
Harry smirked. He couldn't wait to see.
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