Word count : 2644

Warnings : language, angst and just a little bit of fluff (for now).

Summary : Y/N is a Succubus sent by the Devil to take Tony Stark's soul and bring it to him. What happens when she falls for the genius?

Requested by : Khushi-Stark
Thank you for sharing your incredible idea with me. I hope you like it! ❤️

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Hell... A frightening, dark place that consists of the souls of those who have sinned nemerous times throughout their lives. A place characterized by hatred, envy, violence, malice and anger. A place that many have heard of, but has always caused panic among people. A place where the word 'happiness', or anything that has to do with it for that matter, could never exist.

Sounds terrifying, right? Unfortunately, that's what hell was and what it will always be. Here's the bright side though... Once you get used to it, not only do you start enjoying being tortured, but also torturing in return. Just like that, the thing that you used to call a 'brain' erases every trace of kindness you once had, replacing it with the desire to hurt, punish, scare or even kill.

Some evil spirits from there can even steal the souls of those whose hearts are still beating, by doing the only thing they are best at : seducing. This is the category that Y/N Y/L/N, a gorgeous, but at the same time, the most feared Succubus, belonged to.

With black wings, a long, black tail and sharp horns, the creature looked like a female version of Satan, being able to change into a human anytime she wanted. For what reason? The answer was simple : to lure people into her trap, so that she could take advantage of them afterwards.

"I want you to go to Earth and bring me the soul of a man named Tony Stark." the Devil itself ordered slowly, but tightly, grimacing at the mentioned name, while his cloak-covered body walked around the place with slow, long steps, his hands behind his back. Other daemons were watching and listening carefully, ready to attack in case the spirit in front of their 'boss' even thought about trying anything inappropriate.

"He is not an easy target, reason why I have chosen you to complete this particular task."
He stopped, turning to face Y/N, his dark eyes burning into hers as he removed his hood, his body emanating heat and malice. "Disappoint me, darling, and I promise you will suffer the consequences."

"When have I ever disappointed you?" the girl smirked, her eyes glowing red as she stood her ground confidently. With a snap of her fingers, she turned into a beautiful human, with long, sexy legs and curves in all the right places. She looked almost unreal, her appearance receiving a proud, appreciating look even from the Devil. "Just you watch and see..." she grinned. "It will be as easy as pie."

***

Tony was at the bar, sipping from his glass of scotch as his mind kept wandering to his recent nightmares. To say that he looked horrible would be an understatement. His eyes were bloodshot, dark circles more pronounced than ever from the lack of sleep.

He was tired indeed, exhausted even, but he could not rest. Falling asleep has become his biggest fear, the vivid dreams haunting him even now, when he tried his best to clear his mind, but obviously to no avail.

"Hard day?" a soft, unfamiliar voice reached his ears, interrupting him from overthinking any further.

The genius hummed, his head turning to face the owner of the voice. The moment his eyes made contact with the stranger's, he blinked, his breath stopping for a split second.

There sat a girl he has never seen before, wearing a mid-thigh red dress that was hugging her body perfectly, showing her curves. Tony's eyes fixed on her cleavage, and he gulped, realising that she wasn't wearing a bra.

On the other hand, the girl felt some strange sort of energy hit her the moment she made eye contact with the man, her insides burning the more she stood next to him. She could see right through him : pain, fear, lust and exhaustion. It seemed as if she was hit by all of those emotions combined, making her frown. What was that? Sympathy? No... It couldn't be.

"I guess you could say so." finally replied the man as he emptied his glass. "Can I buy you a drink?" he offered.

The stranger smiled genuinely, surprising herself since that was something she'd never done before. "Y-yeah, thank you. I'll have whatever you're having."

'Did I just stutter?' she thought. 'What the fuck is happening?'

Tony nodded in the meantime, his attention turning to the bartender. "Two glasses of scotch, please."

As he spoke, the girl analysed him through narrowed eyes, trying to understand where that feeling came from. There was something about his aura, something she couldn't decipher just yet. His presence made her feel nervous and even a little bit shy.

"Here you go." he said, handing her the glass. She extended her arm, but as soon as her hand brushed against his, a powerful shock of electricity struck her body, making her wince and retreat her hand with a yelp.

Tony frowned, placing the glass back on the counter and watching her concerned. "You ok?"

The female took a deep breath in attempt to collect herself, before looking up at him with an apologetic smile. "I'm fine." she spoke. "Just... having a headache. Nothing serious though."

Tony didn't really seem to buy that, but nodded nonetheless, not wanting to pressure her. The girl stared back at him, her body shuddering slightly. For some reason, she felt the need to be nice around him, to help him even, which was not a good sign at all.

'He is not an easy target, reason why I have chosen you to complete this particular task.' the devil's words replied in her mind, making her feel a little bit nervous. 'Dissapoint me, darling, and I promise you will suffer the consequences.'

Clearing her throat, the girl grasped the glass, taking a sip of her drink. As soon as she gulped, she cringed as her throat started to burn, and even coughed a little bit.

Tony chuckled at her reaction, visibly amused. "Too strong?" he asked. "Guess you're not really a heavy drinker, are you, miss..."

"Y/N." she replied. "My name is Y/N."

***

A few hours have passed and the two of them were still at the bar, drinking and talking about nothing in particular.

Tony was having a good time, his mood having lightened up a little bit the moment Y/N started talking to him. She seemed a very clever woman, with an interesting personality, not to mention about her looks. She was literally the definition of beauty. But then of course, there was also something mysterious about her, something that confused the billionaire and caused him to get curious.

As for Y/N, she almost forgot what her duty was in the first place. Tony was a nice company, making her laugh with his jokes and funny remarks, and although she felt nervous in the beginning, the way he stared, treated and talked to her helped her relax.

"How come I haven't seen you around before?" the genius asked, raising an eyebrow. "I'm pretty sure I would have remembered your face."

"I've just moved to this city." the girl lied, avoiding his gaze. "I don't really know anyone from here."

"Hmm, I see... Who are you living with?"

"I'm living alone. Though it gets kinda boring sometimes, you know?"

"Well, besides my AI, JARVIS, I guess you could say I'm living alone too, so... I know how that feels." he replied with a sad smile. He didn't really have anyone that could understand him properly or be willing to put up with him and that hurt.

Glancing at the time, Tony realised it was almost midnight, his eyebrows raising in surprise at how fast the time has passed.

"I think we should probably call it a night. It's pretty late." he hesitated. "I would like to see you again though. Here's my card with all the information you need in case you wanna contact me."

Y/N took the card, seeing his name, phone number and address on it. "Call me or visit me whenever you want." he smiled. "You're always welcome."

"Alright." the girl nodded, the corners of her lips twitching upwards. "Uhm... Thank you for today."

"Thank you." he emphasised. "See you soon, I hope."

Getting up, he hugged her, taking her by surprise, before placing some money on the counter and leaving the bar. Y/N watched him dissappear, her brows furrowing as she felt her cheeks turning red.

Shaking her head, she went into the bathroom, locking the door behind. As soon as she was sure nobody could see her, her eyes started glowing red, before her entire body disappeared. Looks like this mission was going to be harder than she initially thought...

***

"YOU WHAT?" the Devil roared, approaching her angrily. "HOW COULD YOU LET HIM GO?"

"He gave me his card." Y/N tried to explain. "He's not like the other guys I've met. He wouldn't have slept with me just like that."

"I DON'T CARE! I TOLD YOU TO BRING ME HIS SOUL!"

"AND I WILL!" the girl yelled back, causing the daemons to step forward. "I promise." she added calmly. "I just need more time. Please..."

The Devil sighed, motioning for the others to back off. "Listen to me very carefully, silly girl... You have one month. If you don't manage to do what I asked during this period, you won't be welcome here anymore." he threatened. "I'll make sure you won't be able to leave Earth ever again."

Y/N took in a shuddering breath, before nodding her head. "Alright." she whispered. "I won't dissapoint you this time."

***

"Sir, I hate to interrupt, but it looks like you have a guest." the AI announced as Tony was working in his lab. "They are waiting for you in the living room."

"Who is it, JARV?" asked the genius absent-mindedly, his eyes fixed on the screens in front of him. "Show me the camera footage."

Just like that, a huge image appeared on the wall near him. Tony typed something, before glancing at the video recording, his eyes widening at the sight.

"Oh..." he let out. "Looks like I'll have to finish my project later."

As soon as he said that, his feet carried him out of the lab, his heart filling up with excitement as he entered the lift. Before he knew it, he was in the living room, facing no-one other than the girl he met at the bar.

"Well, hello there." the billionaire greeted, smiling warmly. "I didn't think you'd actually show up here."

"Hi." Y/N waved, returning the smile. "Why not? Were you joking the whole time?"

"Course not, silly." he gave her a hug. "Just didn't think you'd actually want to see me again."

The girl frowned, feeling a pang of guilt all of a sudden, but hugged him back. "You can't get rid of me so easily." she joked, trying to lighten the mood.

Tony chuckled, pulling away. "Too bad then. Cause I don't want to." he grinned. "Please, take a seat. Do you want a drink or something?"

"Are you trying to get me drunk, Stark?" she laughed as she sat on the sofa.

"Not necessarily. Just trying to be a good host." he shrugged. "If you want anything else, just tell me and I'll give it to you."

Y/N raised a questioning eyebrow, looking at him confused and amused at the same time. He blinked, cringing as his own words finally registered in his mind. "That didn't sound right... " he winced.

"I'll just assume you didn't mean what I think you did." the girl laughed. "And to answer your question... a tea would be great."

***

The next day, Y/N visited him again. This time, he was in the kitchen, drinking a coffee and talking to someone through the phone. He looked stressed though, and even a little bit annoyed.

"I don't wanna hear it! You should have thought about that before breaking my heart." he snapped, smashing the cup he was holding forcefully against the counter, causing the girl to flich slightly. "You know what? I'm fucking done with you. Never call me again."

That being said, he hung up, throwing his phone on the table as he slumped on a chair, rubbing his hands over his face in frustration. Noticing a shadow in the corners of his eyes, he turned his head, only to see Y/N standing at the doorway, watching him concerned.

"Oh, h-hi..." he spoke calmly this time. "Sorry, I... I didn't see you there. Come take a seat."

Y/N entered the kitchen cautiously and joined him at the table, her eyes analysing every single datail of his. "You look tensed." she said, as it it wasn't obvious already. "What happened? Who were you talking to?"

Tony sighed, his eyes tearing up a little bit. "It... It was nothing. I'm fine."

"That's bullshit and we both know that, Stark." the girl narrowed her eyes. "It's alright if you don't wanna tell me... We've known each other for a few days, so it's perfectly fine, but don't lie to me. You're not very good at that, you know?"

"Guess you're right." the genius smiled sadly, a tear falling down his face. Y/N's heart broke at the sight of him, her body sharing the same pain.

Not knowing what to say in order to help him feel better, she watched him for a few more seconds, then stood up hesitantly. Tony looked at her, another tear falling since he assumed that the girl was going to leave.

His expression changed into one of confusion, however, as soon as he saw her approaching him, her arms extending. "W-What are you doing?" he frowned.

"I thought you were smarter than that, Stark." she grinned. "You obviously need a hug, so come here, you dork."

"O-oh..." Tony smiled involuntarily, wiping away his tears. "I... Ok."

He stood up as well, accepting the offer and feeling arms wrapping around him. Y/N rubbed his back confortingly, and he sighed in content, leaning his cheek over her shoulder.

"Thank you." he smiled as he stepped back, taking one of her hands into his. "I needed that."

"No problem." she blushed. "Glad you feel better."

***

It's been three weeks since these visits have been going on. With each passing day, Y/N and Tony kept getting closer and closer to each other, fact that the genius liked, but the Succubus started to hate. Why was that? Because she was supposed to seduce him and steal his soul. What was she doing instead? Falling for him... Great job, Y/N.

Today was going to be different though. She wasn't going to allow herself to fall in love with a pathetic human being. Especially not with someone so vulnerable, lonely and depressed. She was a freaking Succubus, for fuck's sake, one of the most powerful ones even, so she wasn't going to fail. Quite the opposite actually. She was going to complete her duty and go back home no matter what.

"Hmm... What to wear today?" the girl thought as he struggled to find something suitable and sexy.

She was finally going to make a move on the billionaire, which meant that she was supposed to look better than usual.

"That's it." she beamed, visualising the perfect outfit. As soon as she snapped her fingers, her current clothes changed, being replaced by the ones she has chosen into her mind. Staring at herself into the mirror, Y/N smirked, feeling more powerful than ever.

"Your time is up, Tones." she grinned devilishly, knowing that Tony couldn't hear her however. "I'll make sure of that."

To be continued...