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Oh Look, the Demon's Simping

Summary:

When things start to get a little too much in their lives, Sebastian and Grell becomes friends with benefits to take their frustrations out. Grell secretly wishes that this'll bloom into something more.

But does Sebastian also wish for something similar?

Notes:

Alright so this is something new... let's just hope it doesn't crash and burn.

I've always wanted to write something outside my comfort zone so I figured writing a story like this is just the thing.

Chapter 1: The First Night it Happened

Chapter Text

Sometimes being a butler to the Phantomhive family is no easy task.

Sometimes being the only female Reaper is no easy task.

Each job has its ups and downs... and that is the kind of position Sebastian Michaelis and Grell Sutcliff found themselves in.

For Sebastian, he was a butler for the young Ciel Phantomhive so he can obtain his soul for a delicious meal. But he knew it would be quite sometime before the consumption can happen. For now he just has to play his role to a T and endure all the monotonous tasks that come along with it. From having to fulfill whatever request his master has for him, to dealing with the bumbling servants who couldn't perform their tasks right no matter how much he scolds them, to even fighting the rising hunger within him to just eat the soul and be on his way.

As for Grell, while some would say she looks to be thriving and living her best life... it would be a flat out lie. For deep inside, she was unsatisfied with where she is now. Most of her fellow reapers find her annoying and a nuisance, too fierce and flamboyant for her own good that it interferes with her work. Not even changing her body to feel like herself with the help of a potion did little to ease her problems. In fact, it just made her more a complete joke to other Reapers than before. She of course doesn't regret her decision to finally feel comfortable in her body, she just wishes she could just be accepted as herself and have someone to love. She does find solace in flirting with whatever man she finds attractive, but constant rejections just made the negative feelings grow bigger and bigger.

The two were feeling... unhappy with their current predicaments, unsatisfied you would say.

They just want something to take their frustrations out on.

~~~

It happened that very night...

Sebastian had finished his duties in putting his master to bed and nightly chores, that he found that he could practically take the night off and not worry about anything. So he figures a stroll through the garden is just the thing.

He steps out back the mansion as he walks along the stony path, admiring the beautiful flowers and bushes he trimmed to perfection (No thanks to Finny and his ridiculous strength). With how perfect everything was, he was expecting to see his little cat friend and give her love and affection like he always does.

What he found instead was a blur of red disappearing as soon as he saw it, causing him to close his eyes and shake his head.

'No... surely it can't be... him.' He thought to himself, prompting to just go back inside and now have to deal with that nuisance.

But instead, he followed where the blur disappeared to figure out just what he was doing here. Lately he's been coming to the manor more and more often, just to flirt with him and duel in a battle. Even though it was a nice change of pace, it still annoyed him when the reaper would take a chance to flirt and try to kiss him before getting pummeled to the ground. But lately he's been coming less and less leaving the butler wondering what had happened.

When he finally caught up with the reaper, he was surprised by the appearance of Grell in front of him. It appears she had found a way to be the woman she always said she was, her new breasts obvious through her uniform, her waist more curved, and overall just looked more feminine and delicate.

She was reading a small black book in her hand as she didn't appear to notice Sebastian behind her, who only smirked as he sneaked up to her and wrapped his arms around her waist. He inhaled her scent of the cherry blossom perfume wafting off her.

"Why hello Grell, fancy meeting you here on this fine evening."

"B-Bassy!" She squeaked.

She tilted her head up to see his red eyes staring into her green iris'. Feeling her crush's hands on her caused her body to react in a way that it didn't before, her belly feeling like it was doing flips while her nether regions grew hot. She moved out of his embrace, wishing she could relish in the touch but knew she had her job to do.

"As much as I would like to cuddle and squeeze you until the sun comes up, I can't afford to dwaddle anymore darling. I'm already in trouble with William as is and if I don't complete tonight's job, I'll be suspended again."

"I see..." Sebastian replied, looking at his hand then at her. "I see you were able to change yourself."

"Oh you mean my new body?" She grinned as she struck a pose. "I was able to whip up a potion with the help of the Undertaker to finally make my dream of becoming a woman come true! But the others don't share the same feeling..."

Like a candle whose flame has been recklessly blown out, her excited exterior deflated when she brought up the other reapers.

"They don't?"

"In fact, it just fuels their mistreatment of me and treat me like a joke. Of course there hasn't been any female reapers before, but it doesn't mean it's impossible!"

"I have to agree, they don't seem to know how to treat a lady."

"Well that's easy for you to say, you're the butler to that Phantomhive brat and is treated with respect."

Sebastian's eyes fall to the ground, his smirk disappearing as he respond.

"To say I do have it good... would be a lie."

"Hm?"

Now this intrigued the Reaper, wanting to know more of what he was admitting to her.

"While it does appear that way, I have to deal with annoyance that tests my patience."

"... I'm listening, I don't have to go back until I reap that soul."

"Very well."

They both sit down on the ground, Sebastian prepping to tell her of his woes.

"To start off, it feels like I'm the only competent staff member of the manor. The others can't seem to even do ONE task right without my intervention. They are excellent in combat sure, but other than that they are useless. And don't even get me started on my master... his soul will be delicious to devour, but having to endure his tasks for me and protect him is more chore than I can say. Without me he would crumble under all the pressure and responsibilities that comes with the title as the Queen's Watchdog, the ungrateful brat can't even tie his own ribbon or shoes without me!"

Grell listened to him rant, looking at the manor in front of them as she began to think. Perhaps she was wrong about that part of Sebastian's life, he seems to be having it as bad as her. They both don't feel like they're being appreciated for their hard work and no other outlet to let it all out.

Then she got an idea...

"Say Bassy?" She spoke up, getting his attention. "How about this. We don't feel like our work is being rewarded enough, so how about we reward each other?"

"How so?"

"Well we both need an outlet for these feelings we're bottling up, so how about we..." She smiled. "channel it into pleasure instead."

The Butler immediately picked up on what she was trying to say as he returned the smile, moving closer to her.

"Oh Grell... you're mind is as dirty as ever. I'm not objecting to the idea, and I suppose I could try out your new body." He leans in closer to whisper in her ear. "... I hope you're ready to see stars."

Grell felt her face go red at the comment, leaning back until she was laying down on the ground as Sebastian moved on top of her. Taking his gloves off with his teeth, he began with removing the buttons off her vest. Which wasn't that hard of a task because as he touched them, they came off from the strain of her new chest.

"I must ask, have you not gotten any new clothes to accommodate your new body?"

"I've... been busy with work that I haven't had any time to do that. It does make it hard to breathe sometimes and it's awfully tight..."

"You won't have to worry about that tonight... just let me take care of it."

Moving back to removing her clothes, he continued with unbuttoning her white long sleeve to reveal the smooth skin and red bra covering her new chest, causing her to shiver and cover herself with her arms.

"I'm... not used to anyone seeing my new body like this. The only other person to see me was the Undertaker."

"Well I think it's beautiful, you can truly call yourself a woman now."

"Bassy..."

He moved down a bit to remove her pants and underwear, revealing her womanhood as he now starts removing his clothes as well. His tie, his tailcoat, his vest and long sleeve, and his pants and trousers. With both of them exposed, now it was time to have some fun.

"Tell me... have you ever had relations like this with any other guys before? I'm just curious."

"I... I haven't." Grell admitted. "I was waiting to share this moment with the one I figured would be perfect, the one I choose to grant the privilege of taking my virginity."

Sebastian chuckled. "Well I am honored to have been chosen for this. Don't worry, I won't disappoint."

"I know..."

The Butler started placing kisses on her neck and collarbone, causing her to moan and grip his arms. He didn't mind as he continued to place kisses on her body and moving down until he reached her breasts. Bothered by the bra covering her, he undid the hook and removed it as his grabbed one of them. She gasped, zings of pleasure coursing through her as he played with the nipple and lightly squeezed. His other hand moved to give the other breast some love as it only doubled the pleasure she was feeling.

Eventually his kisses moved down to her abdomen and hips, which he felt her buck forward. He smirked, figuring it was time for the fun part as he removed his hands on her chest to wrap his arms around her waist. He buried his face in her lower regions as he moved his tongue to get a taste. Grell leaned back, covering her mouth with her hand to prevent herself from screaming to the heavens from the amount of pleasure she was feeling.

For so long, she waited for a moment like this. To finally have her Bassy all to herself this very night, kissing her and making her feel things she only imagined it feeling like was a dream come true. And having him eating her out like this just makes her wanna yell right then and there. But she knew better as they were near the mansion, and the last thing she wants is this moment being interrupted by the other staff and his master all because she couldn't keep her mouth shut.

Perhaps he figured out what she was doing and wanted to reward her... by moving from in between her legs to face her again.

"You're taking the others hearing us into account, that's why you're muffling your cries of ecstasy. Good girl~."

He lowered his waist down to her until she could feel him moving his member inside of her-

She gasped, burying her face in his chest as she grasped tightly onto him.

"Does it hurt? I thought I'd moisten it enough for it to-" He asked, thinking his efforts to make her comfortable went to waste when he heard her panting out words.

"No... I'm alright... Keep going... Never felt this... this good..."

He smiled, making sure to go slow and steady as to not really hurt her. Their bodies moved in a rhythm like they were dancing, their body heat keeping the cool of the night away.

Sebastian had never felt this... excited, fulfilled in life before. There have been other girls he slept with, but none of them even felt this good before. It makes him wanna fuck her dry, to have her screaming his name as he makes her reach her limit. But he too couldn't risk anyone hearing them, so he would have to save it when they're far away and no one can bother them.

Eventually, he picks up the pace and thrusts deeper into her. Her gasps getting more vocal and her grip tighter. He kept moving and thrusting until he hit her g spot, causing her body to spasm a bit.

"There..." He said to himself.

He thrusts where her g spot was, earning more moans and pants to hear from the Reaper as he could feel his limit being reached at the bottom of his stomach. Meanwhile Grell herself was also reaching her limit as she hugged him as tightly as she could.

They both came at the same time, the Reaper biting down on her hand to keep herself from screaming from pleasure as the Butler collapsed onto her. They both panted, having never felt that way before in their immortal lives. Sebastian moved out of Grell so he could look at her.

"Well... I certainly feel better after that."

"So do I..." She replied, her breathing regulating her breathing as her body relaxed.

They laid there in pure bliss, forgetting where they were for the time being.

~~~

An hour passed as they figured it was time to go.

They put their clothes back on and took care of the small mess they made to avoid any suspicions. Sebastian turned to face Grell.

"I have to say your idea was actually good, I certainly say I feel like I can take on anything."

"So do I, I've never felt this energetic before!" She grinned while placing her hands on her cheeks. "We should do this again when we find the time!"

"I agree. Whenever we feel we need release some tension, let's meet up somewhere remote so we won't be interrupted or discovered."

"Sounds like a deal to me~ I look forward to it Bassy."

With a simple kiss blow, she hops away to her job as he smiles and waved by. Checking the time on his watch, he walks back to the mansion to get some work on.

A butler's job is never finished... but at least he now has something to look forward to when things get a little rough.