Chapter Text
“Urgh… where am I?” Bruno Bucciarati, also known as the magical boy Sticky Fingers, woke up at the sensation of something sliding over and around him, restraining his body. Thankfully, he was still transformed, yet his weapon was nowhere to be found. “I was… That’s right! Gold Experience and I were fighting that monster... when I… “ Bruno then realised what the thing restraining himself was. Pink tentacles acted as his prison, dripping with sticky, pearlescent fluid. “Tentacles?? Then this place must be… ”
“Well, well, well. You’ve finally woken up, Sticky Fingers. Or should I say Bruno Bucciarati?” From the shadows the Demon King Diavolo appeared, striding forward in all his glory to stand in front of his prisoner.
“Diavolo, where is Gold Experience? And how do you know my name?” Bruno demanded as he twisted in his bonds, trying to escape but to no avail. All he got was an amused chuckle from his captor. “It wasn't that hard to get to know you, Bruno. You really should have checked your surroundings more.” “Have you been spying on us?” Bruno looked calm, but internally he was panicking. If Diavolo had spied on them, that must mean- “Your teammates are quite the handful. Narancia, Fugo, Mista, Giorno, Abbacchio…” Diavolo watched as Bruno's eyes widened just a fraction. “And look. Here's Giorno.” A side of the tentacles parted, showing an unconscious Giorno, still in his magical boy outfit, however just like Bruno his weapon wasn't with him. Diavolo prodded his cheek with a long black fingernail. “How cute.”
“Our friends are going to save us, Diavolo! You won't get away with this.” The tentacles were tight and slick, and no matter how much he tried he couldn't escape. “They'll make their way here and defeat you.” Diavolo laughed. It was dark and cruel, and sent shivers down Bruno's spine. “Oh, Bruno. You have no idea what is going to happen to you two, do you?” The tentacles started moving, dragging themselves over his skin. “They won't be fighting me. No, they'll be fighting you two.”
Despite getting molested by tentacles, Bruno managed to keep his composure, yet he couldn't help but let out a small gasp at his words. “You.. so that’s your plan? To corrupt us? Well I’m sorry to tell you that us magical boys won’t be giving into whatever torture you have planned for us. As long as we fight for what is right, we will never give in to you and your darkness.” He tried not to shudder as the tentacles slid up his skirt and gently spread his legs apart, exposing his front to Diavolo. “You’re still so naive. Why torture someone when I can make them fall by themselves through carnal pleasure? Even the mightiest fall when subjected to the pleasures of the body.” They slithered up and over his crotch, making him moan involuntarily.
“Have you never experienced such pleasure, Bruno? Well, I will be sure to show you just how good the human body can be capable of feeling.” Behind Diavolo, black smoke swirled and formed into an elegant throne, and he seated himself to enjoy the show in front of him. Bruno shuddered as those piercing green eyes raked over his body. He had to stay strong, especially for Giorno, or else Diavolo would turn his attentions towards the boy, and Bruno would never forgive himself if anything happened to Giorno while on his watch.
The tentacles slipped under his panties and Bruno had to hold back yet another moan as they curled around his cock and stroked it, making him close his eyes. It felt so good… “I see it's time for our sleeping maiden to wake up.” Diavolo's cruel voice made him snap back to reality. “No! Don't- don't touch him!” His voice cracked embarrassingly as Diavolo made the tentacles containing Giorno draw closer to himself, yet the King paid him no mind, instead running his hand through Giorno's hair lightly, watching the silken strands flow through his fingers.
Giorno felt like he was floating. Everything was calm, and he was relaxed and comfortable. He felt someone gently stroking his head, and he purred, wanting to feel more. “Good morning, Giorno.” A gentle voice roused him from slumber, seemingly coming from far away yet right next to him all at once. “Nnh…” As nice as the voice sounded, Giorno didn’t want to wake up.
Suddenly, something wet and slimy was forced down his throat. Giorno snapped awake instantly, trying to breath through the foreign object in his mouth and throat, tears starting to form in his sea green eyes. “Finally awake, aren’t we? Cute little things like you should be awake to watch the show.” The voice came from the man in front of him. Long pink hair cascaded down his back, eyes like twin emeralds that shone in the dark.Even though there was something disgustingly sinister about the man, Giorno felt his heart beat faster, until he was sure it would burst.
“Gi-Golden Experience!” The shout drew him back out of his thoughts. Giorno tried to turn his head towards the source, and he caught a glimpse of black and white amongst the pink. The object left his mouth, and he gasped for air desperately, realising what had been in his mouth. The tentacle slipped back into the mass that was restraining his limbs.
“Br…Sticky… Fingers…” Giorno managed to rasp out. “Watch out! That man is-” Diavolo glanced over. “Silence.” The tentacles surged forward, making their way into Bruno's mouth. “How rude of you to interrupt me, Bruno. Allow me to introduce myself, Giorno Giovanna. I am the Demon King Diavolo, and you two are going to be my new pets.” Giorno felt the tentacles shift, bringing him closer and giving him a full view of Bucciarati’s exposed panties and the tentacles wriggling around inside. “Pets? What do you mean?” Diavolo resumed his caressing of Giorno’s soft hair. “You really are innocent and pure, aren’t you? No wonder you’re so powerful. It will be a pleasure to corrupt you, Giorno.”
“Diavolo… Take me instead… I’ll submit to you… But please, don’t touch Giorno.” Even if it meant Bruno could never return to his friends, he would do anything to spare Giorno the pain of his pure heart falling into darkness, never to return to the light. “Bucciarati! You can’t... “ Giorno was once again cut off by Diavolo, who made his way towards Bruno. Standing in front of him, Diavolo smirked. “What made you think I would ever spare either one of you? For that, I’ll just have to corrupt you first.”
With a wave of his hand, the tentacles curled and pulled, ripping his panties apart. They circled his hole, and Bruno whimpered at the foreign sensation. “Stop that! What are you doing to him?” Giorno struggled against the tentacles, eyes wide with horror as the tentacles pushed into Bruno. “Don’t worry about him, Giorno… Just relax and watch the show..“ Giorno felt the tentacles shift, and he tried to scream, but a tentacle pushed back into his mouth before he could so much as make a noise. The tentacles around him also moved, and he moaned at the newly inserted tendril wiggling around inside him, touching him in places he had never thought to ever touch.
Bruno shivered at the sensation of his body being penetrated by the tentacles. Slowly, more and more pushed in until he was sure nothing more could fit. He felt uncomfortably full, yet there was no pain. Was it Diavolo’s doing? However before he could finish that thought the tentacles started to move, thrusting in and out of him with wild abandon. Every nerve was on fire, and he screamed as they pounded into him mercilessly, taking no notice of his pain. Strangely as his body accustomed to the intrusions, he felt the pain recede and pleasure take its place. He continued to struggle even as a few tentacles started to tug at his nipples, further increasing the amount of pleasure he felt. Dimly, he realised that Diavolo was watching him closely, observing his every move.
“You’ve already fallen, Bruno. Just accept the pleasure you’re feeling.” Diavolo was really enjoying this. He had planned to merely send the monster to suck out as much energy as it could before the Magical Boys defeated it, but it had not only returned, brimming with energy, but with two unconscious magical boys in tow, both who were major obstacles in his way. With Bruno’s body being so low on energy it would gladly receive any, it wouldn’t be long before his mind crumbled as well, then they could move on to corrupting Giorno.
“N-no…Stop... ” Bruno knew his body had already given in, but if he could just hold on to his mind then- The tentacles kept thrusting, loosening his already weakening hold on reality. He felt so full, tummy stuffed full of tentacles that kept spewing their viscous fluid inside, making his abdomen expand further. “Please…” He didn't know what he even wanted anymore. Did he want this to stop, or for Diavolo to continue this almost painful pleasure? Everything was centered around the never ending waves of pleasure he was receiving.
Giorno didn't know what to do. Watching Bruno like this… set off a fire in his chest, which didn’t help the fact that the tentacles were also pulsing gently inside him. He just looked so…beautiful. His body felt so hot, and the slick tentacles didn't help matters. It looks so good… Wait, what am I thinking? I need to get out of this place! But... is that what I really want?
“Just give in, Bruno. Let the tentacles fill you up with dark energy. It must feel so good, doesn’t it?” Hazy blue eyes tried to stare at Diavolo, who had circled behind Bruno to gently caress his chest and whispering to him about how he must feel so good, how he was so very worthy of being his pet, his cute breeding slave. Bruno just moaned, trying to resist his honeyed words, even as his body opened up further to accept more of what Diavolo had to give him. He couldn’t even think properly, let alone speak as the darkness spread throughout his unresisting body. “I…” Bruno managed to mumble out before getting silenced with a kiss from Diavolo. It was surprisingly sweet, and he melted into the kiss.
One kiss was all it took to send Bruno over the edge of depravity. In that instant, the pleasure surged and increased exponentially, and he closed his eyes, losing himself to the depths of darkness as he came, the orgasm only adding fuel to the already raging fire within him. Markings appeared and swirled into being on his previously unmarked skin, their dark colouring a drastic contrast with his paleness, branding him as a reborn servant of darkness. On his abdomen, a mark that bound him to his new master appeared and glowed.
A smile appeared on Diavolo’s face. Bruno Bucciarati was no longer an ally of purity and justice. His mind, body and soul now fully belonged to his new master, becoming only an obedient pet for Diavolo to use as he pleased. He cooed as the tentacles released his new pet, who dropped to the ground, no longer putting up a fight. “There now. Isn't this so much better?” Bruno pushed himself up and knelt in front of him, opening his eyes. Gone were his gentle blue eyes, instead crimson orbs gazed back into Diavolo's own. “...Yes, Master.”
“Why don't you show Giorno how good getting corrupted feels like, Bruno?” As drained as he was, Giorno still tried to struggle against the inevitable. “S-stay back! This isn't you, Bucciarati! Snap out of it!” Bruno laughed, drawing closer to Giorno. Normally his laughter was soothing and gentle, yet now he sounded much more harsher and cold. “Oh Giorno, what are you talking about? It's still me. Master has only made me realise the truth.” He idly took a lock of Giorno's hair and twirled it as he spoke.
“...And what is that false truth he's made you believe?” Diavolo also joined in, long black fingernails grabbing Giorno’s cute little face and stroking it as Bruno spoke. “Isn’t it obvious? We became magical boys so that we could better serve our Master as his submissive pets. Our minds, bodies and souls have always belonged to him completely. So just relax, Giorno. It’s your turn to feel good now.”
“No! I don’t want this!” Without prompting, Bruno licked Giorno’s sweat off his face. Diavolo stared in confusion, though he hid it well. …What the fuck. “You taste like a liar, Giorno. Master, how should we deal with this liar?” Diavolo was this close to actually voicing his thoughts out loud. Bruno could actually tell whether someone was lying from the taste of their sweat? And it wasn’t a magical boy power too, as Diavolo had already removed all of his original powers and replaced them with new ones fueled by dark energy. Was he just born with that ability? “Well, pretty little liars like him should be punished, isn’t that right?” He replied, knowing that no matter what he said, Bruno would agree with him regardless.
“Bucciarati…please... ” Giorno pleaded with him, though he already knew it was a lost cause. The other two paid him no mind, and as the small tentacle slid out of him he whined unintendedly. During Bruno’s corruption it had continuously injected a steady stream of fluids into him, most likely the ones the tentacles were covered in. Whatever they were, it made his body ache and burn for something more. The larger tentacles also shifted, and they deposited him into their waiting arms. Too weak to put up a fight, he still tried his best to twist out of their grasp as he was manhandled so that he was facing Diavolo, Bruno at his back.
Diavolo licked his lips as he looked at his prize. Giorno was a wreck. His skirt already barely covered his legs, and after it was ripped by the tentacles it didn’t even cover anything important. His eyes were glazed over from the aphrodisiacs his tentacles had filled him with, hair free from his usual braid and cascading down his back. But even after all that, he still refused to give up, and the spark of resolve in his eyes never died down. Perhaps more drastic measures needed to be taken to push him off the edge.
“You’re already so loose for me, Giorno.” The blonde whimpered as Diavolo’s finger pressed in and wiggled around, searching for something. Another one was inserted, and Giorno moaned at the relief from the burning within him. With a crook of his fingers, Giorno’s vision went white. “Wh- What was-” Giorno panted as he came down from the sudden high. Bruno grinned against his back, kissing his star shaped birthmark and caressing his still sensitive chest. “That was your prostate, Giorno. Does that feel good?” Giorno tried to reply, but his words turned to gasps and moans when Diavolo rubbed the sensitive bundle of nerves again.
“Looks like you're ready for me now.” Somewhere along the way, Diavolo had removed his pants, and was now stroking his own cock to full hardness. “Master's cock is so big… You're so lucky to be able to be bred by him first. Don’t you want to feel that in you, filling you up nicely with his cum? You’ll be such a good breeding slave for Master.” Bruno kept Giorno's hands behind his back, occasionally nipping and sucking at his neck, leaving little hickeys and bite marks.
“I… I don’t... “ Giorno’s mind was hazy and he couldn’t focus properly, except to listen to what Bucciarati was telling him. He couldn’t help but imagine himself, belly swollen with Diavolo’s brood, being a good pet for his master. It would be good to submit, to just stop struggling and accept his fate. And he trusted Bucciarati. Why wouldn’t he? Giorno was unaware of the previous mental readjustments done to him, to make him accept Diavolo as his master quicker. Diavolo was never known for his patience, no matter how pretty Giorno was. If anything, that only made him more impatient.
The head of Diavolo's cock pressing against his hole just excited Giorno further, the blonde trying to move his hips downward and finally get fucked. “Such a good little pet. You two are so much better than my last pet. Never broke, and even now he still refuses to cooperate with me unless I turn off his reasoning. He's only good for destroying things now.” Diavolo's green eyes stared into Giorno's own as he watched the crimson encroach on them, the markings on his body swirling into place. “But you two will be different, yes?”
“Of course, Master.” Bruno purred, his eyes dark with lust as more and more of Diavolo's cock entered Giorno, until the hilt rested against his ass. “Hah…No…I don't…I…” The red receded from his eyes, returning them to their normal sea green. Diavolo tsked in irritation. “You still keep resisting me, Giorno. But I can tell that you've fallen as well. Once you fully accept it, you'll feel so much better.”
Before the blonde could get a chance to reply, Diavolo started thrusting, every snap of his hips sending shockwaves of pleasure through Giorno's body. Giorno nearly screamed, tears forming in his eyes as Diavolo hit his prostate constantly. The markings solidified, and the faint beginnings of their bond mark began appearing on his tummy. “You take my cock so nicely… I knew you would be a good pet for me, Giorno.” Diavolo kissed away the tears forming in Giorno’s eyes, shushing the blonde’s hiccups. “I...I’m good?” Giorno murmured, looking at Diavolo through his long lashes, uncharacteristically timid.
“You are perfect.” Diavolo growled as he bit down on his neck, drawing blood. As Giorno’s pleasure peaked, the last bit of resistance that remained within him was snuffed out by the wave of dark energy and pleasure he felt as he orgasmed. With Giorno tightening around him like crazy, it didn’t take long for Diavolo to come as well. Giorno groaned with delight as he felt his Master’s release filling him up, the slave mark glowing as their bond solidified. He slumped in their arms, body shaking from the intensity of his orgasm and the new changes to his body.
Pulling out of his new pet, Diavolo watched as some of his cum spilled out from Giorno. “Master…” Giorno mewled as he felt the loss of his Master’s cock. “Greedy little pet. Do you like my cock so much?” “Mmh! It feels so good inside me, Master!” Giorno nodded emphatically, making grabby hand motions towards Diavolo. “More, please?” Bruno also turned pleading eyes onto Diavolo. “ Master, please pleasure us more!” The demon king grinned. “Who am I to deny such cute pets?”
“What lovely pets I have. Corrupting you two was well worth the energy.” Three hours later, all three were lying on Diavolo’s bed in his palace, thoroughly sated. In response, the two snuggled up against him, much like a pair of cats. “But unfortunately, I’m not quite satisfied with just you two. How would you two like to corrupt your friends and turn them into my pets as well?” Bruno and Giorno looked at their master as he petted their hair, and both answered decidedly.
“Anything you want, Master~”