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Beta Testing

Summary:

Alastor lifted his hand to turn the handle, ready to barge into the room and stay until he had satisfied his need for annoying Lucifer, before suddenly stopping. From behind the imposing door, muffled noises could be heard.

They didn’t sound pained… or maybe they did? Alastor couldn’t really tell but he knew the noises were odd. Very slowly, he turned the handle and opened the door just a tad to peek inside the room. Never in a million years could he have ever expected seeing the scene in front of him.

Or : Lucifer agrees to test out some new products for Asmodeus. Alastor, who had simply planned to come bother the King, accidentally becomes an audience to the show.
Days later, still unable to forget Lucifer’s face, Alastor decides he needs him for himself, no matter what.

Notes:

This was an idea pitched to me by an anon on my Tumblr !! :DD They sent me two other ideas that I really really loved so look out for those too hihi
If you have any requests or concepts you'd like for me to write (or you just wanna talk), my Tumblr asks/messages are always open wooo (@meguwu-fu) aswell as my twitter DMs (@Megsu_fu)!!
Have an enjoyable read!

(See the end of the work for more notes.)

Work Text:

One thing was certain, nobody could tell Lucifer he wasn’t a dedicated friend!… Maybe… Sometimes… Anyway!

Recently, he and the Sins had finally gotten back in contact after years of Lucifer virtually ghosting them. It was nice! Mostly. Earlier this week, Ozzie had asked him for a favor and of course, Lucifer had accepted. He didn’t have anything better to do anyway.

However, he did feel perplexed when he hadn’t heard anything from the Sin of Lust after he accepted his proposal. At least, that was until a package was delivered to the hotel for him.

“Dad! There’s something for you here! It’s from uh… The Lust Ring?” Charlie had called out to him as he walked down the stairs.

“Hm? Oh! Right, it’s probably related to whatever Ozzie wanted me to do. You can hand it over sweetie.” Lucifer smiled up at her, gently taking the rather heavy package. “The hell is in this?

Well, he already had an inkling. This was a package sent by Asmodeus after all, though he still wondered what the Sin could possibly want his opinion on. Maybe the designs of the “toys” and how they looked? Whatever it is, he’s sure instructions would be given to him anyway.

Having thanked his daughter, Lucifer walked back up to his quarters, dodging almost all sinners left and right in the hallways. Almost.

Rounding up the corner, Lucifer bumped into Alastor, the radio demon being annoyingly sturdy despite his lanky frame. “Ow- Hey watch where you’re going.

“Hm? Ohh what do we have here, Your Highness? Who did you possibly have to pay to send you a care-package?” The sinner smirked mockingly, dusting himself off as if Lucifer was somehow contagious.

“Oh shut up Alastor, don’t blame me for your sad friendless existence.” He spit out, walking right past him as he headed straight to his bedroom.

Dropping the purple box onto his bed, Lucifer snapped his fingers to change into his comfy clothes of choice, letting the oversized pink sleeves settle over his hands. “Hahh… Gosh, that sinner always finds a way to get under my skin.” He complained under his breath and opened up the package.

Unsurprisingly, he was met with sex toys of different shapes, colors and uses. “Of course.” He sighed, hand pushing dildos and vibrators left and right to try and find the notice he was wondering about. “These better not have been used before.

After a minute of searching, his hand finally met a small piece of paper with golden writing on it, signed Ozzie. 

Bored, Lucifer skimmed the note under his breath, taking in every piece of information about what he was meant to do with all…these. “‘Hello Snakey Sweetie’… ‘Was wondering if you could do me a favor’…bla bla… ‘you can totally refuse’… yeah yeah…uhh… ‘New products’… ‘need some testing out and I trust your judgement’…bla bla yeah- wait. Testing?” Lucifer paused, rereading the sentence he had quickly looked over. “Hold on. ‘We've conceived some new products that need some testing out and I trust your judgement. I’d like you to send me back ratings, criticisms so I can improve them, or your approval concerning the immediate release of whichever product you think is good enough.’...Jesus Christ Ozz.” Lucifer groaned, hand dragging over his face. He finished reading the letter, whose ending consisted in Asmodeus thanking him in advance with little heart drawings as well as his signature.

Putting the letter down and looking back towards the box, Lucifer considered it. It couldn’t hurt, right? He’d be helping his friend and he’d just need to pleasure himself once or twice a day (because no way in hell was he testing all of these in a day.)

Though he wasn’t sure how he felt about treating jerking off like homeworks he had to hand back, Lucifer still let himself be tempted by the idea.

Being tempted into lust by the Sin of Lust himself, ha, how funny is that? This wasn’t a big deal anyway, he couldn’t see why he would turn down the chance to help out the big guy if it didn’t even require that much out of him. 

Convinced, Lucifer pulled out his phone to send a quick text to Asmodeus, confirming that he would help out with his little beta testing, before looking back to the package next to him.

“Where to start?”

 



 

As always, Alastor felt immense satisfaction at the prospect of annoying the little King.

Still, he couldn’t help but wonder about the package he had been carrying during their earlier little encounter. Though he had said it specifically to mock Lucifer, he was truly curious about who could've possibly sent the carton container to him.

Their King wasn’t necessarily known for his social prowesses after all.

Well… I could always just go probe him about it again.” Alastor figured, the idea of further messing with Lucifer bringing a smile to his face. What a good way to finish his afternoon.

Resolute, Alastor turned on his heel and headed towards Lucifer’s private quarters in the hotel spire opposite to his radio station. Finally arriving in the fancy corridor, Alastor glanced at the “No Alastors allowed” sign and chuckled, rolling his eyes. 

Lucifer was truly as stupid as he looked if he even thought for a second that the placard would actually deter him from having his fun and bugging the tiny King.

Alastor lifted his hand to turn the handle, ready to barge into the room and stay until he had satisfied his need for annoying Lucifer, before suddenly stopping. From behind the imposing door, muffled noises could be heard.

They didn’t sound pained… or maybe they did? Alastor couldn’t really tell but he knew the noises were odd. Very slowly, he turned the handle and opened the door just a tad to peek inside the room. Never in a million years could he have ever expected seeing the scene in front of him.

In the middle of his King sized bed, Lucifer was on his knees and bouncing up and down a rather large dildo, his eyes closed as his face scrunched up into pleasure. “A-Ah! hah! F-Fuck…!” Lucifer moaned, hands supporting him against the mattress as his thighs trembled in pleasure.

Before starting, Lucifer had figured using his uh…”vaginal form” would be more efficient.

Two holes would make the testing go faster than one after all, right?

However, he quickly also realized that there was only so much his behind could handle, especially when so much time had passed without him getting any action. Though, no matter how long he had gone without using his pussy, the tight cavity seemed like it couldn’t get enough, his refractory period almost non-existent when using this form. God- He had forgotten how good having a pussy could feel.

Asmodeus was damn fucking good at his job, that was for sure.

As Lucifer continued bouncing up and down the curved dick, each ridge rubbing against his insides making him whine in delight, Alastor couldn’t tear his gaze away from the scene.

He knew he should leave. He should close the door and head back to his own room. He should just forget he had even witnessed a second of this entire thing but… for some unknown reason, his hand couldn’t make itself close the door, his eyes refused to look away from Lucifer’s wanton face for even a second.

…What the hell was happening to him?

“N-Ngh! Fuu…! Hahh mh! ah ah !” Lucifer shivered, biting his lips as he reached his peak once more, cunt clenching around the toy as his back straightened up. “G-Gah! Ahh~!”

Alastor felt absolutely mesmerized, breath catching in his throat as he watched Lucifer’s face devolving into one of absolute pleasure as he came undone. Before the blond could come down from his high and get his senses back, Alastor tore his eyes away from him and closed the door with some difficulty, shadows teleporting him to his bedroom.

“Hahh…ahh… Lord…” Lucifer caught his breath, fanning his heated face with his hand. Maybe he shouldn’t have gone so long without pleasuring himself, the pent up feelings releasing all at once were a lot to deal with.

Slowly, his blurry vision came back to normal and he withdrew himself from the large intrusion. Laying back in bed, he stretched his arm to take his notebook in hand, and wrote down his review. 

Well, it definitely did what it was supposed to do so that’s already a point.

While the blond chewed down onto the other end of his pen, writing down what he thought was well-made or what could be improved, Alastor paced back and forth around his room, still unable to forget about the sinful scene he had become an audience to.

Sitting down into his arm chair, Alastor lit himself a cigarette, desperately trying to ignore the tent that had formed between his legs.

He had never looked at Lucifer in such a way. Actually, he had never looked at anybody in such a way, and he found himself having a hard time dealing with the overwhelming feelings.

Why in the world did he stay? 

No matter how much he tried finding a logical answer to the question, everything led him to believe he had simply let his desire take over him like a much more lowly sinner than he thought himself to be would.

“Shit…” He groaned, head falling in his hands as he tried to rid his mind of the image.

Lucifer shaking and moaning around the intrusion as he bounced up and down the plastic cock, moans ricocheting off the walls… He couldn’t stop thinking about it. 

That face… I wonder… Would he look like this too if I…” Alastor started contemplating before quickly slapping himself internally for even entertaining the thought.  This was Lucifer he was thinking about! Lucifer! The most annoying fucking entity Alastor had ever had the displeasure of knowing!

So why… Why could he not get that rosy-cheeked face out of his mind?

He was in big trouble.

 



 

Alastor had hoped the image of Lucifer whorishly moaning and drooling would leave his mind with time, but it had been over a week at this point and he was still haunted by the memories. It was absolutely maddening, he could barely look the King in the face anymore, turning away each time the other would try to start bickering with him as usual. His mind would always end up circling back to what he saw that afternoon.

Still, he did surprise himself when realizing that his preoccupations may not have been in the right place… 

Alastor couldn’t help but wonder… Did it really feel that good for Lucifer to make such a face? Or was the celibate King just that desperate?

What started as curiosity, as a stray thought, built up over the days and became a need. A need to prove something to himself…to prove something to Lucifer. 

He knew he could make him feel better than those stupid toys.

He wanted to prove it.

He would prove it.

Fuck… He needed him for himself.

He’d make Lucifer feel even better, that way he’d never need to use those replicas and instead could have the real thing. Alastor would provide him with it.

 



 

Lucifer had finally —finally— gone through most of the toys Asmodeus had sent him. His notebook had come in quite handy in remembering which ones he particularly liked so he could ask the Cardinal Sin to keep these ones for himself. 

All he had left to do was test the final dildo he hadn’t gotten to yet —and by the Lord, there were a lot of those in that package— as well as an Air Pulse vibrator which was in a beautiful burgundy color. Now that he truly stopped to think about it, these might be… a lot to use together.

Well, he might as well start with the vibrator. He needed an easy orgasm to relax anyway. Plopping into bed and lifting his pink bathrobe, Lucifer laid back against the headboard as he got his hands on the device.

Meanwhile, Alastor had been hot on Lucifer’s tail since the King had excused himself out of dinner, claiming he was “already full”. He knew precisely what that excited look on the blond’s face meant. If he was going to act, tonight would be his chance.

As he approached Lucifer’s quarters, he made sure to make his shadow stand guard for him at the entrance of the area.

He couldn’t have any interruptions tonight.

Leaning his ear against the door, Alastor’s breath slowed down as he tried listening in to the noises he knew Lucifer would soon serve him with.

From his comfortable spot on his bed, Lucifer slowly approached the soft silicone head to his clit, biting his lips as the gentle airwaves started surrounding the sensitive nerve endings, pulsations making him whine in pleasure.

Fuck… That one was good, very good.

“A-Ahh… N-Ngh!” Turning up the settings, Lucifer felt his thighs shaking in pleasure. This thing was amazing, it felt like he was being given the best head he’d had in years.

Man… Getting back in contact with the Sins had been an amazing idea.

S-Shit- Ahh…hah! T-This is so…!” Free hand coming to grab at his sheets, Lucifer’s eyes crossed as his hips started involuntarily humping the air, chasing after his peak. “Ah, ah! Fffuck~!”

Thighs closing against his wrist, Lucifer felt air being stolen from his lungs as his orgasm crashed into him, pussy getting soaked from pleasure. “A-Arh! Hahh ahh~! S-Shiiit~!” He keened, ass plopping down onto bed as he desperately tried to catch his breath. “Fuck… This thing is efficient.” He couldn't remember any of the other toys making him come undone so fast.

Shaky fingers turning off the toy, Lucifer put it down onto the mattress next to him and reached out for his notebook. He tried his best to write his overwhelming praise for the object in legible handwriting, still unaware of the audience at his door, who had been thoroughly enjoying hearing him climax from the other side.

...Alastor couldn’t handle it anymore, he needed his hands on him. He needed to make him feel even more pleasure.

As Lucifer rolled onto his stomach, writing as he tried to catch his breath, Alastor finally decided to delve into his shadows, reappearing behind the unaware blond. Quickly shedding his long and extravagant jacket, leaving only his button-up shirt, Alastor walked slowly towards Lucifer, approaching his relaxed form on the bed.

His eyes racked over the plump ass cheeks presented to him, focusing on a droplet of sweat rolling down the King's lower back. Carefully, Alastor climbed onto the bed and atop of Lucifer, casting a shadow over the blond as he caged him in against the bed.

Feeling weight shifting on the mattress and seeing the outline of two fluffy ears over him, Lucifer gasped as he turned his head suddenly, taken aback by the radio demon’s presence. “Fuck! Alastor!” 

Quickly, the embarrassed King’s hand flew to try and pull down his folded bathrobe to cover his naked behind, only to be stopped by the sinner wrapping his fingers around his wrist. “Tut-Tut, none of that.”

Lucifer felt like he was going to spontaneously combust from shame. Having Alastor of all people see him in such a way… “Let go!” He snatched his hand away, his own physical strength greatly surpassing Alastor’s. “Do you mind? Can you not read the sign in front of the door? Get the hell out of my room.” He grumbled before squeaking when the feeling of Alastor’s big hands grasping at his ass reached him. 

“Hmm… You don’t seem that busy to me.” He leaned down to whisper in Lucifer's ear, the act making the older demon shiver. 

What the hell is going on…?” The question wracked Lucifer’s mind, the entire situation completely confusing him. This is Alastor we’re talking about! “I… uh…” As the sinner's hands continued fondling him, Lucifer’s brain let itself be slightly tempted by the feeling. That was until his gaze caught the glint of his wedding ring in the corner of his eyes. No... no, he couldn’t do this. “Alastor- wait… I can’t, this is…” He tried to reason, the feeling of another being’s touch muddling his brain a little. Lucifer was nothing if not absolutely touch-starved after all.

Seeing the way the little King’s eyes flew to the golden band surrounding his finger, Alastor brought one hand down to cover Lucifer’s, hiding the evidence of a previous relationship, while the other sneaked around to the blond’s sopping cunt. “Out of sight, out of mind, right?” He chuckled, licking a stripe up the side of Lucifer’s neck before sucking down onto the flesh, leaving little golden marks.

“H-hm! Ah…!” Lucifer whined, fingers flexing under Alastor’s grip. “Wait wait wait, I just- ah!” His sentence was cut off by the feeling of Alastor’s fingers pushing against his entrance, slowly breaching the wet heat.

“What were you saying?” He smugly tilted his head before scissoring his fingers inside the shivering blond. “Hm… Still relaxed from your earlier fun I see? Lord... to think our King is such a degenerate, it pains me to think about!”

Mh! Y-You’re one to ta-ah! talk!”

Alastor hummed, thrusting his fingers harshly into the heat before finally taking them back out. “Fair point.” He relented, fingers now pulling down at his own pants, any restraint he had left slowly abandoning him with every whine and gasp pulled out of the blond.

Hearing the sound of fabric shuffling behind him, Lucifer snapped his head around to stare at the sinner above him, eyes searching his face for any reasonable reason this was even happening in the first place. “Wha- Wait, wait! I don’t understand! The hell’s going on with you?!”

“You only have yourself to blame for this one, Your Majesty.” He chuckled, cock finally freed from the confines of his pants.

Lucifer’s breath caught in his throat at the sight of it resting against his exposed ass, golden flush painting his entire face. “I… Wait- how is this my fault?! I didn’t do anything!”

“Ohh Lucifer… pleasuring yourself like this everyday for the past week, while not even taking care to check if your door is locked? Your foolishness really knows no bounds haha! Really, it seemed like you were just begging for someone to come satisfy you.” Alastor purred, hand slowly tightening around Lucifer’s, the rind digging into his skin.

“I-Is that why you’ve been acting so weird towards me lately?” Lucifer chuckled awkwardly, he really should pay closer attention to this kind of stuff…

“I’ve simply been thinking…a lot, actually. I’ve been trying to understand why I was unable to make that whorish face of yours disappear from my mind.”

“Hey.” Lucifer frowned at the offensive term, but Alastor continued anyway.

“Embarassingly, I even started getting… upset at the notion of these stupid plastic toys making you look like this… Really, I just can’t help but think I would do a much better job~” He explained, guiding his aching cock to rest between the soft cheeks in front of him.

Hm! I… I thought you hated me though.” The blond asked, mind still unable to comprehend the radio demon’s shift in attitude.

“Well I certainly don’t like you, if that’s what you’re hoping for. I’m not here to be a replacement wife, thank you very much.”

“Oh.” Lucifer dead-panned. Well, this was still Alastor after all, the man couldn’t help but be a jackass no matter the circumstances it seemed, even when the circumstances included him having his cock out and rubbing against him in bed.

“Though… I do admit that I wouldn’t mind taking on some of the more… intimate marital duties.”

With that, Alastor used his hand to guide his impatient cock to the place it’s been aching to breach for days now. The feeling of the warm head poking at his entrance made Lucifer gasp, eyes almost popping out of his head in surprise. “I- Wait! Can you just give me a second to process for fuck’s sake!?”

“Hmm… I don’t think I can, not after such a tortuous week of restraint.” Alastor declared next to the blond’s ear, eyes fixed onto Lucifer’s expression as he wasted no time to thrust his length inside the King, warm walls clenching around the intrusion.

Lucifer’s eyes rolled to the back of his head at the sudden shove, “Argh-?! A-Ah! Y-You fucking piece of shi-ah!~

Alastor bit his lip, trying his best to not spill inside the shivering King under him. It had been a… while, to say the least, since he’d last done anything remotely close with anyone and he didn’t need to embarrass himself by spilling after two thrusts when he had talked such a big game. Lord knows Lucifer would never let him live it down.

So, with the power of pettiness, Alastor grit his teeth and took a deep breath, hands travelling to Lucifer's small waist and lifting his hips up from laying flat against the bed, getting a better angle to hopefully thoroughly ruin the man under him.

Planting his knees firmly down onto the mattress, Alastor finally let out hundreds of hours of sexual frustration out onto the poor King.

“Ah! Ah! S-Sloww down…!” Lucifer begged through wanton moans as the sinner above him pounded into his cunt with abandon, as if trying to mold his insides into his shape. Weakly bringing up an arm to try and push Alastor off of him, or at least get him to slow the fuck down, Lucifer pawed at the demon’s ribs, only for the immovable man to tsk in response.

“Can’t even stay still and take it for a minute? Well, don’t worry, It seems I’ll just have to fuck that unruly attitude out of you.” Alastor grunted with each thrust, hands leaving Lucifer’s hips to grab his wrists and pin them to the mattress next to his head.

S-Shit! Y-You are so dead once this is over- ah! Fuck!” He cried out, fingers twitching against the sheets.

“We both know you could easily free yourself if you wanted to dear… My hands are not made of angelic metal as far as I know. Go on, push me off if you’re really that desperate.” Alastor purred, gyrating his hips as the head of his cock massaged the entrance of Lucifer’s womb, making the King’s thighs tremble as he whined against the mattress. Lucifer buried his face deeper into the bed in shame, muffling his moans as Alastor continued fucking into him like a jackhammer, pace not faltering. 

However, little flames soon started appearing around the King’s form, tall horns sprouting out of his forehead as well as a long black tail from his lower back. “Oh?” Alastor tilted his head to the side, was his little devil really going to end their little encounter short?

Before Alastor could speak up, the tail in front of him —that he had been half expecting to be slapped by square across the face— wrapped tightly around his waist, keeping him flush against and inside the blond. 

Alastor chuckled, delighted to see such a mighty being submit to him. The high he was getting from this was absolutely incomparable to anything he had ever felt before. “Fuck… Lucifer, I fear you’ll be the double death of me if you keep on being so slutty.” A harsh thrust against his cervix made Lucifer sob into the mattress, his sharp fingers ripping into the sheets under Alastor’s grip around his wrists. 

Hm! Mphh…”

“Hm…Well that just won’t do.” The radio demon muttered before letting go of the blond’s forearms to meanly grab at Lucifer’s horns like handlebars, forcing his head up. “Don’t deprive me of that sweet voice Lucifer, I don’t have many opportunities to hear the King of Hell himself begging for my cock, now do I?”

“F-Fuck! A-Ah! Alastoor~!” Maybe Lucifer should reevaluate some of his earlier commentaries about Ozzie’s toys… They were still fucking good, don’t get him wrong, but Lord did the real thing feel different.

“There we go.” Alastor chuckled, interrupting his frantic thrusting every once in a while to gyrate his hips into Lucifer, dick slowly but surely opening up the short King’s womb, before getting back to his harsh pace.

As his grip around the imposing horns tightened, Lucifer whimpered. “N-Ngh! A-Al… Hurts…!” He complained, stray tears flowing down his rosy cheeks.

“Hm? Oh, sensitive are they? How cute.” He said patronizingly, grasp tightening harshly for a second just to hear Lucifer hiss. “Promise me you won’t muffle your sounds anymore?”

“Yes! Yes, yes! I-I promiiise-ah! Fuck!”

“Good boy.” Alastor drawled, hands releasing the receptive horns and letting the devil's head fall down onto the mattress.

Lucifer felt his heart flutter at the praise, which was something he would unpack later when finally alone and rethinking all the life choices that had brought him to that point. Getting fucked to high-heaven by his daughter’s hotelier…Asmodeus would probably be so happy that his toys inadvertently caused such a scandalous affair.

Noticing the way the King’s tail tightened sweetly around him, like a sort of remote hug, Alastor chuckled. It seemed he had found the next part of Lucifer he would have fun being rough with. Bringing a now free hand to caress the appendage, Alastor reveled in the full body shudder that pulled out of Lucifer. “How cute… But I fear I’m not very cuddly.”

Without any further warning, Alastor tugged the tail away from his waist and wrapped it around his hand, using it to yank Lucifer back onto his dick with every thrust. “F-Fuck! T-Too rough, Al~! Ah!

“Much better way to make use of this naughty thing.” He figured, unoccupied hand pulling down Lucifer’s bathrobe from his shoulders and exposing more of his white impeccable back. His fingers wandered across the soft skin, leaving traces of his little visit with his sharp claws, drawing golden blood.

Alastor was already enjoying how fucked out Lucifer sounded and looked, however… he was never known to be easily satisfied. He would make sure this man would be ruined, unable to think of anything other than Alastor for the coming days, the same way he had been haunting his every waking thoughts this past week.

Looking around, an imposing discarded and still untouched object caught Alastor’s attention. Smirking, his wandering hand came to spread the blond’s asscheeks, a thumb coming to nudge at the still untouched entrance.

The feeling made Lucifer squeal in surprise, half lidded eyes looking over his shoulder as moans continued spilling out of his drooling mouth. 

Fuck… He looked so debauched like this.

Shaking his head, Alastor got back on track. “Have you already used any of these… things… here?” 

“H-Huh? Mh! W-What things?” Lucifer dumbly asked.

The sinner rolled his eyes. Well, he couldn’t be too mad at Lucifer’s declining IQ when he was the cause behind it, he reasoned. He pointed towards the still unused dildo with a grin. “These things.”

Lucifer’s already furious blush somehow deepened. “I uh… mh!” The sinner didn’t have the patience for any bashful spluttering when he was already balls deep into the blond. Pressing the tip of his thumb past Lucifer’s rim and into the tight heat, Alastor narrowed his eyes. “Ah! Fuck…-!” Lucifer gasped in surprise at the intrusion.

“Answer.”

“Yes! I- fuckk~ B-But the last time I- mh! The last time I did was a-a few days agoo~ ahh!” He moaned wantonly, pressing against Alastor desperately, wanting the head of his cock to finally breach into his womb after so much teasing.

“Hm… Is that so? Well, to be honest, I am very curious concerning what’s so great about these… How about you give me a demonstration?” Alastor chuckled, hand coming to take the dildo by the flared base.

“W-Wha- ah?!” Before Lucifer could even begin to question what Alastor meant, he felt the cold tip of silicone pressing against his back entrance and slowly breaching him. “Fuck! Alastor! T-Too much-! Ah!

“You can handle it.” Alastor simply said matter-of-factly, pushing the dildo deeper and deeper inside Lucifer's ass as he continued thrusting into his cunt.

Finally having shoved the entire thing past his rim, Alastor listened to every moan and complaint about “being too full” from Lucifer. Harshly pulling Lucifer back onto his dick with his tail, Alastor hummed as he frowned, slightly confused. 

He didn’t get how such a thing could be so pleasurable on its own. Sure, it was big but… it seemed like such a hassle to have to move it by yourself. Lucifer really should stick to him instead of using this stuff in the future, that way he wouldn’t have to cramp his arm just to feel any motion.

Feeling like he was missing something, Alastor looked around to find a remote he hadn’t thought to pick up. It was the same color as the dildo now lodged deep inside the blond, so they may be related. Taking it in hand, he pressed a random button, eyes widening as he heard Lucifer’s moans become higher pitched, the muscles in his thighs contracting, as he noticed a pulsating motion coming from the object inside Lucifer’s ass.

Oh. Well. Alright. 

His dick couldn’t vibrate, but at least he could move on his own, that had to count for something, right?

And… this was getting slightly pathetic.

Getting jealous over a plastic dick? Who even was he anymore?

Well, Lucifer didn’t seem to care much for any of Alastor’s inner turmoil, eyes rolling to the back of his head at all the stimulations going through him. His body was being pushed to the absolute limit, and he was a celestial being! Only a psychopath such as Alastor would be able to push him to the brink of insanity like this.

Lucifer’s nails tore through the mattress, desperately trying to ground himself as he was forced to undergo Alastor’s ministrations. “Ah! Ah! Ah! F-Fuck~! Alastoor! I- I can’t th-thiink~!” He whined loudly, tears now freely rolling down his cheeks.

“Hm? You feel so good your brain turned into mush? Well, not like you were using it that much anyway.” He chuckled meanly, pulling harshly on Lucifer’s tail.

Still, as much as he tried to keep up a strong facade, Alastor’s restraint could only last so long. Dropping the little remote he had in hand, his fingers came to grip at Lucifer’s hip, leaving traces in their wake.

As Alastor’s pace hastened, Lucifer could do nothing but sob, cheeks pressed against the mattress as the sheets under him soaked up tears and saliva. The King’s peak approached rapidly, making the velvety walls around Alastor’s cock tighten, as if trying to suck him in even deeper.

Ah, well who was he to deny His Majesty?

Alastor thrust harshly inside the blond, the head of his dick, that had been bruising and pounding Lucifer’s cervix thus far, finally breached inside the warm awaiting womb, pulling a pleasured scream out of the man under him. “A-Argh! Fuck! T-Too deeeep!~”

The pressure around Alastor's cock felt nothing short of heavenly.

There was no way he would be able to stay satisfied with only bedding the King once. Now that he had experienced this, it had to become a recurring thing.

“F-Fuck~! Alastor I-I’m c-cloose! Ah! Ah!

“You’re not the only one~ Fuck, I’ll make sure you’re still dripping with me for the rest of the day.” He breathed out, feeling almost delirious, hips snapping harder and faster as his release quickly approached.

However, Lucifer’s single remaining brain cell seemed to perk up at that and the feeling of the cock pulsing inside him. “W-Wait! Ah! Ngh~ N-Noo, not insiiide!” He tried, hips attempting to get away from Alastor before being pulled back by his tail onto the hard cock.

“Hm? But look at how much you’re moaning for it dear… Seems to me like that’s what you crave.” 

“N-No! No no!” Lucifer sobbed, “Please p-please! Alastoor~ I-I don’t wanna be pregnant~!” He babbled, begging for some mercy from the sadistic radio demon.

Alastor hummed, considering his options. If he wanted this to become a habit between them, maybe pissing off the King was a bad idea. With a sigh, Alastor relented. “You’re lucky I’m so generous.”

“H-Huh- eek!” Lucifer squeaked, feeling the large vibrating dildo being pulled out of his ass harshly. Before he could even question what Alastor was playing at, the emptiness past his gaping rim was filled with the big cock that had been pounding into his cunt thus far, Alastor replacing the plastic dildo inside his ass with himself. “F-Fuck! Ah!

Grunting and moaning at the tightness, Alastor got back into his rhythm, hand circling around Lucifer to come jerk off the little nub, rubbing it quickly as Lucifer’s thighs trembled. “A-Almost there dear?” He sighed, trying to stop himself from moaning too loud at the pressure around his cock.

“Y-Yes yes fuck! Ah- I-Im comingg~!” Lucifer cried out, entire body shaking as his orgasm ran through him, cunt pulsating around nothing as he squirted against Alastor’s fingers, who continued rubbing him through his climax.

“Fuck… So whorish, squirting for a lowly sinner’s cock and fingers? Look at yourself, Your Majesty.” Alastor chuckled, fingers continuing to massage Lucifer’s clit until overstimulation as he chased his own orgasm.

Soon enough, his thrusts became erratic, moaning as Lucifer sobbed about everything being “too much”. Slamming his hips against the King one last time, his release punched through him as he flooded the monarch with wave after wave of scalding cum. “F-Fuck! Ah… Hm!”

“A-Alastoor~...” Lucifer moaned, eyes glancing down to his stomach, distended by the cock inside him and growing bigger with every wave of seed pumped inside him. “Jeez…”

With a sigh, Alastor slumped down onto a still shaking Lucifer. Taking his chin in hand and forcing him to look him in the eyes, Alastor grinned. “Now, you’ll promise to never use these silly contraptions again, yes? If you need any relief you’ll know to just come to me.”

“I… It wasn’t even like that! I was just testing these out for Asmodeus… Sin of Lust needs to make sure his toys are adequate I guess.” Lucifer mumbled, looking away embarrassedly.

“Well, you can tell ‘Asmodeus’ to find some other harlot to test his toys because this one—” Alastor licked up a strip from Lucifer’s neck up to his cheek “—is mine.”

The King whined but didn’t protest much other than that, eyes glancing towards his ring one final time. “I…”

“Lucifer.” The dark tone made him immediately look back to Alastor. “Promise?”

“…I promise…”

Notes:

Alastor’s def gonna convince our lil King to let him cum inside the right hole next time lolol, he’s a man on a mission.

This concept was so much fun to writeee. Thank you anon, whoever you are lolol <333
Now that exams are over, I'll finally be able to write more often woop woop !!! Don't hesitate to reach out to me on my socials! I'm gonna be very bored this summer so I might as well get to talk with people about these lil freaks lol