Prompt: For the Mission (Fairy Tail) (Patreon)

Summary: On an undercover mission to investigate a gang leader's party, Lucy and Gray are drugged. Despite already dating someone else, the two are forced to fuck each other, and by the end of it, it's not the drug in control of the two. Includes: Anal, and NTR. 

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Lucy tried to steel her nerves as she and Gray approached the large mansion. The team had been sent on a mission to infiltrate a gang and capture the man leading the group.

It seemed like an easy idea on paper, but when Lucy and her friends had arrived at the town he was afflicting, they realized just how difficult this would be. The gang leader had a lot of men on his payroll. 

Lucy had no doubt that she, Erza, Gray, and Natsu could have easily dealt with him and his forces, but the four worried about those caught in the crossfire. They couldn’t let any innocents get hurt because of them, and so a different plan was put together.

When the four heard that the gang leader was holding a party in his mansion, it seemed like the perfect chance to sneak in and do some recon, maybe even capture the criminal if they were lucky.

Sadly, the party only accepted couples for whatever reason. Lucy would have thought that she and Natsu would be the ones sent inside, after all, they really were dating, but Erza disagreed.

She wanted Natsu with her outside, hoping his acute senses could help her keep an eye on the building. Natsu even agreed with her, clearly not wanting to play any sort of undercover role.

Lucy loved her boyfriend, but stealthy wasn’t exactly his strong point. So he and Erza were hiding somewhere outside the mansion, probably patrolling around the old building as Lucy and Gray walked towards the front entrance.

The place was massive, and Lucy couldn’t imagine any one person living all on their own here. She glanced at Gray, and his eyes turned towards hers. 

He gave her a confident smile, and she tried to return the gesture. Both of them were dressed ready for a party, with her body draped in a dark blue dress that Erza had picked out for her. The dress clung to Lucy’s hourglass figure, accenting her curves and showing off her cleavage. 

Lucy was never that shy about showing off her body, but this was… well, it was awkward. Pretending to be Gray’s wife… To his credit, he resisted looking at her chest. 

It made sense, though. He was dating Juvia, and they were happy together. 

Lucy glanced at Gray again, admiring how he looked in his suit. They were wearing matching outfits, and Gray did fill out his clothes well, she noticed. Lucy blushed slightly at that thought, and she sighed as she showed the guards their fake IDs. 

They entered the building, following the crowd as Lucy noticed the old works of art hanging by the walls. She admired them for a moment as Gray subtly placed a finger on his ear, activating his ear piece. 

“We’re in.” Lucy could hear Erza replying back after a second or two, but it was faint. 

“Good. Anything to report so far?”

“Yeah, the hell’s wrong with this thing? I can barely hear you,” Gray whispered. 

“The building must have some kind of defenses to-” Static, and Gray and Lucy shared a look of worry with one another. “Keep going. We’ll-” More static. 

“Looks like we’re on our own,” Gray sighed as Lucy clung to his arm. 

Lucy and Gray soon came to an absolutely massive room, complete with a stage at one end of it. Lucy and Gray were able to find their own little place to sit in the room, though Lucy did notice a bizarre fact.

There was a curtain by their table, and Lucy noticed that it could have been used to cover their entire corner. She wondered what sense the bizarre design was, before a voice called out to them and the hundreds of other guests.

The large, portly fellow beamed, waving to his audience. They cheered for him as Lucy and Gray watched him speak into a mic. “Are you ready for a night of fun, folks?!” he laughed, and he was met with an even louder cheer.

“Good, good. I just want to remind all of you I’ll be recording all of this, so if you aren’t sitting at a private table and you were hoping for some privacy… Well, you certainly came to the wrong place.”

Lucy raised her brow at that, before smoke began to spill out from the stage. She and Gray gasped, only to freeze as they heard a distinct hiss of gas. Pink gas spilled out of the stage, and even the walls around them. 

The pink smoke was covering the area as the gang leader vanished behind the curtains. Lucy coughed, breathing in the gas as Gray fell for the same trap. They coughed, trying to wave the gas away as their bodies began to burn up.

“A-are we being poisoned?” Lucy coughed.

“I-I don’t know! I’m… I’m feeling… r-really hot,” Gray groaned, and Lucy nodded her head vigorously. 

“Y-yeah. I feel it too.” Both of them were burning up, both of them unable to catch their breath as they began to pant. The two wrestled with this fire as Gray noticed something.

Those closest to the stage… Gray just couldn’t believe it as he watched the people tear at their clothes and immediately kiss one another. 

They were like wild animals, fucking and fornicating with the other guests. “It’s time for an orgy!” The gang leader’s voice announced as Lucy bit her lower lip. Her heart was racing, just like Gray’s...

Gray grabbed at the curtain, pulling on them to cover their bodies as Lucy panted. It was impossible. What the hell kind of gas could make her feel like this? Suddenly, all of Lucy’s movements began to… please her.

Her nipples against her bra, her dress against her ass, hell, even her clit against her panties. She shuddered as Gray peeked outside and looked around, trying to find some kind of exit. He quickly returned to Lucy, gasping for air, breathing in more of this poison. 

“A-all the exits are being guarded,” he coughed. “T-they’re all wearing gas masks. There’s no way we can’t overpower them...”

“Can you use your magic?” Lucy asked, and Gray shook his head with a scowl.

“C-can’t think,” he muttered, gyrating his hips slightly. Just feeling his dick against the inside of his boxers… “W-what do we do?” he asked, as he began to pull at his shirt with a shocking amount of strength. 

He tore the clothes off with ease, and revealing his chiseled and naked chest. 

“G-Gray, w-we need to... to.” Lucy gulped, staring at his half naked body. Gray looked at her, and his eyes fell onto her tits, admiring their size. She pushed her chest towards him, wanting him to look at her. “We need to do something!” 

“Y-you’re right. We don’t have a choice,” he declared. He began to pull at his pants as he spoke. “We just do this and get it over with. Never speak of it-ahh… Again.” Gray’s bad habit mixed with the gas, leaving him hot and nearly naked as he kept pulling at his clothes. 

“R-right.” Normally Lucy would try to resist the urge that was building up in her. She was dating Natsu, after all, and Gray was in love with Juvia. They shouldn’t be doing this.

But the pink smoke was a fog in her mind, clouding her thoughts to the point where neither could even consider using their magic. They joined in the debauchery, tearing at their clothes.  

Gray could see the conflict and hesitation in Lucy’s eyes. She was fighting the influence of the gas with every second as she tore at her dress, almost ripping it off of her body. He understood why, of course. They were both with someone else, but this was the only thing they could do while caught in this intoxicating gas.

The two shared a look. Gray was already naked as Lucy paused. He looked at her lingerie covered body, and he couldn’t help but admire the dark fabric accenting her already beautiful body.

“If we’re doing this… we’re going all out,” Lucy whispered, and Gray’s eyes widened as Lucy pushed him back onto his seat. She sat on his lap, and as she gave one last apology to Natsu, she began to give Gray a lap dance.

The dark gas was corrupting her mind, just as it was with Gray. The dark-haired man placed his hands on Lucy’s back, stroking her smooth skin as music was heard. It mixed with the gas, only sending those listening to it further down into a pit of sinful pleasure. 

Outside, both Gray and Lucy could hear the moans and cries of the other guests, but for Gray, all that mattered was the beautiful blond grinding against his hard cock. 

He gave one last apology to Juvia, before he began to rub her ass, squeezing it as her pussy ground against his shaft. Lucy slid her body back and forth, rubbing her wet pussy against him. She coated her panties with her juices, and Gray could feel how wet she was even through her underwear. Lucy moaned as her clit rubbed against her lingerie, before she leaned forward. 

Gray dug his fingers into her ass, before he leaned towards her. The two kissed, and that kiss quickly turned into a heated, and passionate make out session. The two moaned into each other’s lips, tongues wrestling with one another as she wrapped her arms around the man.

The kiss ended sooner than Gray would have liked. Lucy pulled away, rising up just so she could strip the rest of her clothes off. “Sit back and relax,” she gently commanded him, pulling her panties down to her feet, before undoing her bra.

She got on her knees and opened her mouth, welcoming his cock into her mouth as she began to bob up and down. Neither felt the guilt that weighed them down earlier. They gave in to the lust, and Gray placed a hand on Lucy’s head, pushing her lower as he moaned. 

Gray didn’t say anything, but he felt it. The way Lucy was licking his shaft, sucking on the thick dick… She was better at it this Juvia. 

He took control, holding her head in his hands. He fucked her faster, forcing her head all the way down. Lucy’s groans were muffled by the cock fucking her throat. Natsu was never this forceful…

She kind of liked it.

Her lips pressed against his crotch, before sliding back to the tip, and down again. She squeezed the shaft with her lips and throat, and Gray let out a loud moan as he pulled her down on his cock one more time.

The man came, shooting his semen into her throat. Gray expected Lucy to pull her head back, coughing and spitting up his semen. That was what Juvia did after he came in her mouth.

But no. Gray watched, marveling at how every stream of semen he shot into her was swallowed down. He moved his hands, and Lucy kept sucking his dick, dragging her tongue against his veiny rod, before pulling her head back. 

A drop of cum slid down her lower lip, only to be licked up as she looked at Gray with half-lidded eyes and a smile. She opened her mouth, revealing how clean it was, before she whispered, “You have tasty cum…”

Gray grabbed at Lucy, pulling her up onto his lap again, with her back facing him. Lucy giggled as he placed his hands on hips and slammed her down on his cock, slamming into her wet pussy.

Lucy rode his cock, moaning as it pounded her inside. He lifted her up and down at first, but soon she was trying to match his pace. She bounced on his shaft, panting and trembling as he fucked her. 

The blond tried to think about her boyfriend, but Natsu was a fading memory as she felt his tip press against her G-spot. He was bigger, wasn’t he…? He was bigger than her boyfriend… 

Lucy mewled loudly. Her mind began to think only of Gray, and her body fell in love with his cock. Her muscles spasmed, making her pussy squeeze tightly around his shaft. He moaned in approval, making her beam. 

Gray lifted his hands off of her hips, letting her bounce on him at her own rhythm. He placed his hands on her tits. He squeezed her tits, digging his fingers into the soft flesh. She moaned, before crying out in pleasure as he pinched and pressed his fingers down on her nipples. 

Lucy rode his cock for a few blissful moments. Gray had an amazing understanding over her body. It was like he could tell what every twitch and moan meant. He’d stop just before she could cum, slow her down to prolong the pleasure, before he’d start again. 

“Turn around,” he ordered, and she obeyed, spinning on his cock so that the two were facing one another. The two leaned towards one another, kissing the other again. 

Gray’s tongue slipped into her mouth, and she moaned, sucking on it as her hands stroked his muscular chest. He spanked her ass, smacking her tongue with his own as he slid his hands up her back.

Soon, he was groping and squeezing her tits, making her moan even louder. He pinched them as he broke the kiss, licking at the line of saliva that linked their mouths. “Fuck,” he groaned. “You’re so fucking sexy, Lucy,” he comoplimented.

“Your cock is fucking amazing,” Lucy replied, caressing his abs as she bounced on his dick. She squeezed down on his cock again, and Gray couldn’t fight it any longer.

“I’m going to cum…”  

Lucy bit her lower lip and averted her eyes. It was as much hesitation she could muster as she bounced on his cock faster and faster. She wanted to tell him to cum outside, but that would mean she’d have to stop bouncing on his dick. 

So she did nothing, letting him cum inside her as she let out a loud and passionate moan. He moaned with her, digging his hands into her tits as sperm shot into her pussy. She came with him, cumming on his shaft as she felt his cum coat the inner walls of her cunt.

He flooded her pussy, making some of it even drip out of her as she leaned forward, resting her head against his. 

“S-should we slow down?” he asked, more for her sake than his. He fucking loved this… She was a rough lover, and it was amazing. 

“Keep going,” she replied, staring into his eyes. 

Gray smiled at that. He then pulled her off of him, and before she could whine, he ordered her to sit down. She obeyed, and a gentle tap on her legs made her spread them apart as he stood over her. 

“Give me the best you’ve got,” she whispered, and Gray grinned as he positioned himself. He wanted to tease her, torture her a bit. It’d make the pleasure all the sweeter…

He rubbed her creampied pussy with his dick, and Lucy closed her eyes, expecting him to fuck her. When all he did was rub her, though, she opened her eyes and whined, face red. 

“H-hey. Come on… F-fuck me already.” 

Gray just chuckled, torturing the gorgeous blond as he rubbed his dick against her wet folds. He kept this torture going for a while, savoring the way Lucy clawed at his chest, begging him for relief. This was torture for the girl, and he just chuckled as he stared into her eyes.

“You know what I want to hear.”

Lucy didn’t have to be a mind reader to know. The fog pushed down her inhibitions, and she gave the man exactly what he wanted to hear. “You’re better than Natsu. This… this is the best sex of my life. Your cock is so much bigger than his, and you… you’re such a good fucking lover. Please, please, let me cum from your cock one more time, Gray. I need you.”

He grinned, feeling a primal sense of victory as Natsu’s girl told him how much better he was than his rival. He rewarded Lucy by slamming his cock into her, filling her once more with his shaft as he bucked his hips back and forth. 

Lucy almost screamed in pleasure, gasping and moaning as he rammed into her. Her arms wrapped around his head, combing through his dark locks as he fucked her. Gray leaned forward to better fuck her, placing a hand on the wall behind her for better balance. 

His other hand moved down, rubbing her clit with his thumb. That was the straw that broke Lucy, and she shuddered as she came once more on his dick. Her muscles spasmed and convulsed out of her control, and that made her pussy tighten around his cock, squeezing it. 

He moaned loudly, but he kept thrusting, fucking her pussy harder and harder, moving like a piston as she screamed in pleasure. Her tight pussy hugged his shaft, and he felt his orgasm fast approaching as he pulled out.

“Beg,” he growled, and Lucy had to resist the urge to cum all over again. He wrapped his fingers around the base of his cock as she placed her hands on her glistening tits, groping and playing with herself as she smiled.

“Please, Gray. I want your cum. I want your cum all over my slutty body. I need it. I need it more than I ever needed Natsu…” She pulled on her nipples, smacking her tits together as Gray moaned. 

He came all over her, coating her body in his seed as she moaned in pleasure and euphoric joy. Jets of cum fell onto her face, on her tits, and splattered everywhere in between. Her chest was covered in his seed as she moaned, licking her lips as she stared at him.

Her eyes didn’t move as she scooped up some of his seed and licked her fingers clean. She saw the lustful stare he gave her as she returned the favor.

“Juvia or me? Which one of us is better?” She asked, turning around. She laid on all four, shaking her ass for Gray. 

“You. You’ve got bigger tits, a fatter ass, and a tight, perfect pussy. You’re just better in all areas.” Lucy beamed at her own victory, before she asked another question. 

“Good. I’m glad, and as a reward… Do you want to fuck my ass?” she asked, spanking herself lightly. “Natsu’s never fucked me in the ass before. It could be all yours.”

Gray gladly took the offer, spanking Lucy’s ass, before he got down on the ground with her and slammed his cock into her fat ass. She moaned loudly, tits bouncing back and forth as Gray plowed her.

The young man had never felt so good before. Maybe it was Lucy’s tight ass squeezing every inch of his dick.. Maybe it was fucking her, knowing that his rival had never gotten this chance before. Hell, Natsu never would if Gray had anything to do about it…

Gray pounded her ass, letting his balls smack against her body as she moaned and cried out in pleasure. One hand groped her large breast, squeezing it as another hand grabbed at Lucy’s hair.

He pulled, and she arched her back, leaning her head back as Gray kissed her lips. She moaned, pushing her tongue into his mouth. Their tongues danced, drool spilling down Lucy’s chin as the two moaned. 

“F-faster. Faster,” she panted, licking at the trail of saliva that linked their mouths. Gray grinned, nodding his head. He pulled back, spanking her once, before he lifted her up.

The two altered their positions. Gray fucked Lucy’s ass while standing, stretching her butt to the point where Lucy felt like she was being split in two. She screamed in pleasure, wrapping her arms around his neck as she mewled. 

One hand held Lucy’s body against his as Gray used the other hand to play with her breast. He pinched and pulled on her nipple as she drooled, gasping in pleasure. 

Lucy felt his cock throbbing inside of her, and she moaned from the feeling of it tearing into her. He showed no mercy, only speeding up as he fucked her tight ass. He hadn’t just popped her cherry. He obliterated it, and she fucking loved it.

The blond moved closer, whispering into his ear. “I-I’m gonna cum, Gray…”

Gray chuckled, moving one of his hands between them, letting her control the pace of her own ass fucking. He gave her clit a gentle rub, and she moaned in pleasure. His other hand squeezed her breast, pinching her nipple. Her moan turned into a scream as her muscles spasmed again, and her ass tightened around his shaft.

The two came together, with Gray shooting his seed right into her ass. Lucy was a twitching, shaking mess as she clung to him, drooling on him as her cum clung to his skin. His own seed dripped from her butt as his semen clung to her inner walls, just like her pussy. 

They clung to one another for a moment, just holding each other, before Gray pulled his dick out of her. He gave her ass a spank, and smiled. 

“That was the best sex I’ve ever had…”

“Me too,” she panted, nodding her head. Gray let Lucy go, gently putting her on the ground, before he fell onto his chair. Lucy looked at him, and licked her lips, crawling towards him. “Here. Let me lick you clean…”

Gray marveled at her energy. Was it the gas? Or just her? Either way, he enjoyed the show, watching her lick his glistening cock clean as he played with her hair. He stroked it, watching her tongue slide along his shaft…

“So… we keeping this between us?” Lucy nodded her head, as her tongue drew circles of saliva on the tip of his dick.

Eventually, Gray peeked through the curtain around them. The other couples were laying on the floor, panting, clearly exhausted. It looked like the party was over. The smoke was even clearing out.

Lucy finished cleaning his dick, and the night’s fun finally caught up with her. She laid on the ground, eyes falling shut as she let out a long sigh. She began to sleep right there, and Gray smiled at the sight. 

He considered joining her, when a familiar sound greeted him. “Gray. Gray, do you read me?”

“Erza?” he replied, turning on the ear piece. “I can hear you loud and clear.” Whatever must have been disrupting their communication must have been dealt with. 

“Good. Natsu and I captured the gang leader. Meet us back at the inn?”

“Right.” Gray chuckled, briefly wondering if it was needed for him and Lucy to go to this party. He shrugged the question off as he turned off the device. He glanced at Lucy, smiling as the memories of the night played in his head. 

He wondered just how his blond teammate would be walking back given what they had done together. He laughed in his head, closing his eyes as he laid on the ground. He’d wake Lucy up to meet up with the others, of course. 

Just after a short nap. He’d need it after what Lucy did to him.