PB and Finn Go to a Party (NSFW)

Finn the Human was used to sleepovers at the Candy Kingdom. They’d become a sort of thing he’d do at the end of the week or after he came back from killing some large creature or demon or whatever. Princess Bubblegum would get the citizens all together and throw a giant party for any small reason they could think of. He was surprised they hadn’t gotten sick of all the shenanigans, but then again they probably weren’t smart enough to understand the meaning of “moderation.”

This time, however, was much different than before. Trekking out from his treehouse to the Candy Kingdom, pillow and sleeping bag in hand, he foresaw an evening filled with fun little candy games, the usual dance-off, and whatever other antics the candy citizens found themselves in whenever more than three of them were put into the same room together. When he arrived to the door of the Candy Castle, however, he was greeting with a more overbearing figure than usual.

“Oh, Finn! You’ve arrived!” The figure beamed, her pink hair bounced in delight, and wasn’t the only part of her that bounced. “Glad you could make it!”

“Er…P-Princess Bubble…gum?” He cocked his head to the side and saw the ruler of the Kingdom standing in the doorway with a hand on her hip, her body practically twice as big as it was before. “What uh…you look different!”

The monarch was at least a foot taller than before, and her body seemed to have expanded since their last get together. The hoodie and pants she adorned squeezed into her body, stopping short just underneath her chest, exhibiting her stomach that stuck out like the dough in a popped can. Finn’s eyes grew to the size of plates and a bead of sweat ran down his brow. His heart was racing and he was fortunate she couldn’t see his reddening face in the waning sunlight.

“Oh, yeah…” The Princess responded, looking down at her larger figure. “Side effect of this regenerating biomass experiment I’ve been working on. But hey, check this out!” She pulled her pony tail to the side and pulled off a piece, which grew back almost instantaneously. “My body can grow itself in case of any heinous injuries!” She seemed happier than any sane person would be in this situation, but Finn was too engrossed in her enlarged form than anything she had to say. The smooth lumps that hid underneath her hoodie seemed like they were going to burst out at any moment. “Well come on! The party’s inside!” She pulled the boy inside into the insanity going on in the castle’s foyer. There were various candy dancing and singing while others were performing gestures that could only be described as “God-awful attempts at dancing.” These were of no importance to the boy, however, who had his eyes focused on the pink girl’s backside as they walked towards the punchbowl, specifically her panty-lines that were indented through the stretched fabric.

The colorful characters that Finn got to know over the years were there as they always were, blissfully unaware of the outside world, lost in the atmosphere of thumping music and dancing lights. Through the disorientation, however, the guests all turned towards the blonde hero and the music came to a halt. The silence was almost deafening before an almighty roar of applause and cheers erupted; the partygoers resumed their merriment soon afterwards.

Finn would usually go in and claim the dance floor as his own by now, but tonight there was a force stronger than that pulling him towards it. Following the Princess around like a shadow, the two talked idly with random partygoers, each conversation eerily the same, as if they knew nothing else to add.

“Hello, Princess Bubblegum! Hello, Finn!” They would say, the Princess and Finn responded with pleasantries, and the candy would resume their partying. It was possible that they were too entranced in the loud music and flashing lights to make awkward small talk, and really what else more would a piece of taffy have to say?

“Oh, Finn you have to have a cup of punch before we start dancing!” The Princess said abruptly, stopping short in front of the snack table. Finn saw it quick enough to avoid bumping into the back of her, but boy did he have every intention of doing so. She reached out to grab the drink ladle before the bowl of liquid came to life. His eyes darted every which way and his mouth opened up to reveal a tooth-gapped smile. His feet kicked every which way in rhythm to the beat of the music, making the monarch rather irate. “Hey, cut it out!” She spat, trying to get a hold of the glass container. Her hand gripped the rim, but it jumped out of her grip, the momentum made the bowl’s contents slosh about. “Stop! Watch it!” She made a swipe before the bowl stepped aside, unfortunately, its top-heavy stature carried it forward, and the momentum caused it to tip over, spilling its contents all over the Princess and her attire.

A loud gasp could be heard as the crowd looked stunned at the monarch covered in red drink. She herself seemed stunned until she looked at herself in disgust and then at the partygoers around her. Trying not the kill the party early, she chuckled awkwardly before she threw her hands up.

“Heh! N-now it’s a party!” Her cheer spurred life back into the shindig and before anyone knew it, the candies were back to dancing and the music was back to booming. Everything resumed as it was except for the Princess trying to shake off the sugary fluid. “Eegh!” Her face crunched as she pulled at her clothes, now stained a darker tint and sticking even more to her figure. Finn was quick to notice the predicament and tried to hide his embarrassment, but the Princess held fast to his wrist. “Hey Finn, you don’t mind coming up to my room right quick while I grab a change of clothes, do you?” The boy shakily tried to respond, but all that came out was a murmured peep in agreement.

The candy ruler smiled as she continued to lead Finn through the crowd of sweets, all-the-while going on about her latest advancements in bio-candy engineering. Finn, on the other hand, had his sights on different matters…

Traversing the stairs, the boy had the pleasantry of gawking as the Princess’s “lady bits,” as Jake would refer to them, bounce and sway as they moved up the higher levels of the castle. Her stomach was squeezed where her hoodie cut off just underneath the large lumps on her chest and where her pants hugged her waist.

“Geez, it had to be a full punchbowl didn’t it?” She scorned, looking down at herself, unaware that she was already being monitored enough by the male behind her. “Dang, and this was my favorite hoodie too.”

“Heh…uh…yeah, r-real bummer isn’t it?” Finn churped, hoping she wouldn’t turn around to see his “awkwardness.” Thankfully the lighting up along the higher levels at this time of night was much dimmer, just well enough to allow someone to navigate themselves through the corridors.

Before long, the girl stopped in front of a lavish looking door with vines and gothic detailing carved into it. The Princess smiled as they stopped and she reached out a hand to push open one of the doors. Finn stood rigid behind her, both in posture, and in the situation in his trousers.

“S-s-sooo I’ll just uh…hang out here and wait…for…you?” Finn hoped the cracking in his voice was undetected by the Princess, who just turned and waved him in.

“No no, it’s alright Finn, you’ve already been in my room like a dozen times before! I just need to get a change of clothes then we can get back down stairs!” He noticed one of the drawstrings for her hoodie barely made it halfway down her breasts as she held the door open for the boy. He clutched his chest in hopes his heart wouldn’t give out. As they walked in, the Princess flipped on a light, giving the room an amber glow. “Blegh, of course this would have to happen.” She said, stretching out an arm and a leg, grimacing at her attire. “Now it’s starting to dry too, geez…”

As she strode around from her drawers to her various closets, Finn stood with his hands firmly clasped together, smiling meekly as he took in the site of the monarch’s thick legs accommodating her figure, all flowing from her ankles up to where her thighs were abruptly cut off by the pair of shorts that only accentuated her curves. Even before the punch incident, it didn’t take an intelligent eye to see how tight those shorts stretched over her frame, and Finn couldn’t look away.

“I swear, if it’s not one thing, it’s another…” Princess Bubblegum, murmured, bending over to sift through a drawer. Her shorts looked close to tearing apart as they thinned to the point where her backside was clearly visible. Finn’s eyes widened and his pulse quickened to a lightning pace, what a way to die.  “Here! I knew I had another one left!” The Princess cheered, holding up a pink hoodie in hand. “Now Finn, I’m gonna go change in the other room, you make yourself comfortable until I get back, okay?” All he could muster was a small nod. She smiled and swaggered off to the door to her bathroom, closing it behind her, leaving Finn to his own thoughts.

The boy let out a long, drawn out sigh and sat down on the Princess’s bed. The evening was certainly taking a turn in a direction he hadn’t expected. One moment he’s excited to get down and dance, the next he’s trying his hardest to hide the shame trying to rip itself through his trousers. His face burned as he quickly slid his hands inside his shorts to adjust himself and while the short contact felt wondrous, he knew this was definitely not the right place to take care of an issue like this.

“Get it together, Finn!” He scolded himself, dragging his fingers along his face. “Just…stop thinking about it!” He closed his eyes and tried to find his happy place, trying to quell the building heat in his loins. He couldn’t let the Princess see him in such a shameful state; his hero’s code wouldn’t allow it.

Despite his best efforts, he could still feel his manhood pleasantly pushing against his waistband. His pants grew uncomfortable and stuffy as his bulge swelled with blood, filling his head with impure thoughts that didn’t help his situation. It twitched as he tried lying back on the bed, the lump obviously visible to anyone with the ability to see. Perhaps he could feign sick until he got out of there, but that would still require him going through that parade downstairs. Maybe if he could call Jake he could-

“Finn?” The boy heard his name called, breaking his train of thought. He shot up and looked around, pulling his shirt down to cover his shame. “Finn are you still there?” It was the Princess, still in the other room. He could feel his face burning, hoping everything was all right.

“Y-Yeah! I’m…I’m still here, PB!”

“I hate to ask you, but uh…could you come in here for a second?” Finn could feel his eyes sink into his skull as the Princess grunted audibly behind the door. “This zipper isn’t going down and I-ugh! I need an extra set of hands!”

“I-I can go and get Peppermint Butler instead!”

“There’s no time for that, Finn! Besides, he’s too short! It’ll be really quick, I swear!” Finn swallowed the lump in his throat and tiptoed over to the bathroom. His hands felt like they were made out of lead as he gripped the doorknob, his body wracking with dread. Adjusting his pants one last time, he slowly pushed the door open, hoping not to catch the Princess off guard.

Finn held a hand over his face as he stepped into the Princess’s room. He could feel her plush carpet squish under his shoes. He knew it wasn’t likely proper etiquette to wear shoes indoors, but no one else seemed to mind and Jake always told him how lucky he was to get away with it. “It’s about time, Finn!” The Princess said impatiently a ways away. “Close the door; come on!” Finn’s mouth trembled as he tiptoed further into her room. The door clicked shut behind him as he continued his blind excursion. “Like I said, it’s this zipper and I-! Can’t-!” He could hear her grunt in frustration, struggling with her clothing. “Oh for Glob’s sake, Finn! Open your eyes and help me!”

Finn’s body shook in fear as he slowly lowered his hand. One eye peeked open, then the second. His meekness seemed to dissipate quickly as his eyes shot open, ogling the monarch as she hopped around in front of her dresser.

Walking forward, his heart raced, threatening to tear through his blue shirt. PB turned towards him as he approached, her blossoming bosom pushing tightly against her stained hoodie. “Here, Finn, we can’t be much longer, and I think the punch is starting to stick.” Bubblegum bent forward. The hole between her hoodie and the zipper formed a circle that resembled a picture frame; her cleavage displayed prominently as gravity pulled her breasts downwards. “Now the teeth of the zipper are being pulled too much for me to do it, so here’s what I need you to do…” The Princess’s hands went to the opposite sides of her chest, pressing them together so that the clothing didn’t stretch as far. However, the mass was forced forward, pushing out to where they almost collided with Finn’s face. He could smell the sugary liquid soaking the Princess’s garments, but he knew he had to focus. “Okay, now grab the zipper and yank it!”

Finn hesitated. Where the metal clasp held fast, directly underneath it was where he really wanted to plunge his hand. The zipper’s tip dangled precariously over the valley formed by her cleavage, a thick line that sunk down into an abyss of gum and juice residue. His eyes had trouble focusing on the thin piece of metal as he reached out to grab it. He dared not keep the Princess waiting long, but the voluptuous pillows being thrust in front of him proved a bigger challenge than any recent quest or monster hunt.

“Uh-err…yeah, okay…” The blonde stammered, finally taking hold of the clasp.. PB pressed her breasts harder together, trying to make it easier for him to pull it towards him. Finn prayed she didn’t notice him drooling.

“Alright, now just give it a quick pull! That should do it!” Finn tugged hard, but it still stubbornly refused to move. Not wanting to break it off and prove their efforts worthless, Finn laid a hand on the Princess for some leverage. Giving another pull, he felt the teeth give way. “Finn-!” The Princess said in reaction. Continuing on, he pushed with one hand and pulled with the other, feeling it give way little by little. It was almost halfway down her torso. He pushed his hand harder. “Finn!”

“Hold on, Princess! I almost got it!” Finn strained, trying to get the stubborn piece of metal to move down her stomach. With one last valiant pull, he felt his arm almost slam down into the floor, the broken zipper still between his index finger and thumb. Staring at it, he breathed in heavily before sighing in defeat. “Sorry, about that, PB. I think we almost had it.”He huffed and stood back up.

“That’s not what I was trying to get at…” The Princess said, fatigued. The boy looked up to see what she meant. Where his hand was, in an attempt to get better leverage, was placed it directly onto her right breast. His hand depressed the fabric and flesh as he still applied pressure. Even worse was where the zipper had broken off, now was replaced by the line her cleavage formed as it was still tightly compacted in the garment, albeit slightly not as worse off. He felt his face burn from embarrassment as he quickly retracted his hand, apologizing quickly and profusely.

“Aw geez! I’m sorry! I’m sorry, Princess! I-! I-I didn’t mean that I was just trying to-!” His bumbling was quickly silenced as the Princess raised her hand.

“Finn believe me it’s alright, I know you were only trying to help. In fact I likely still would’ve been more stuck if you hadn’t been here. At least I can breathe…” She placed her hands on her hips and looked at her soiled top; the fabric had already been stretched to its limit by her new figure, and now the zipper was snapped off. The teeth ran only halfway up, stopping at the very bottom of her bosom. “I think I can probably pull off the rest myself.”

“Oh! Heh… that-that’s great!” The monarch pouted and shook her head.

“No, because now we’ve got another issue.” Her finger pointed at the boy, lowering his gaze to where it extended. His face stopped as it became obvious what she was pointing attention towards. The lump in his trousers had returned, and there was no way of covering it up this time. It pushed out sideways, growing across his leg and stopping just short of his pants pocket.

His body locked up; his pupils narrowed into pins and time seemed to freeze. Finn’s mind raced drastically for some excuse for the troubling bulge or some witty remark, but each thought crashed into the one before it and soon they all piled up into a slew of gibberish.

“Buh…buh…buh…” Princess Bubblegum turned her head up, keeping her gaze focused on Finn.

“Guess you were happier to help than I thought...” Her words trailed off, making the boy sulk in his shame. His brow furrowed and his body trembled. However, she sensed his anxiousness and sought to lighten the atmosphere. “I uh, guess I still got it, eh?” She faked a few laughs, but it was evident she had little effect on the boy, at least in the she desired. Her laughs caused her half-exposes chest to bounce in rhythm, only heightening the issue in Finn’s trousers. “Hrmm…I suppose I should’ve expected this. You’re a healthy, growing boy after all…”

Finn’s hands went to the bottom of his shirt and pulled it downward. It didn’t hide the log in the front of his pants, but it relieved his shaking, at least somewhat. The Princess’s head cocked to the side and her face took a much somber tone.

“Oh Finn, I’m sorry. I didn’t mean for this to happen.”

“No! I mean, it’s not like that, Princess!” Finn spat out, trying to form legible thoughts. “I mean-! Uh, s-sometimes, it can do this all on its own! It-it doesn’t mean that-! That…!” His word-juggling slowly tapered off as he concluded her was just digging his hole deeper. Tapping his fingers together, Finn kept his eyes glued to the floor, not daring to look at the ruler of the Candy Kingdom in such an undignified manner.

The Princess grumbled as she took in the scene. Her princess duties wouldn’t allow her to leave a citizen of her kingdom in such a conundrum. She’d have to take matters into her own hands.

“Here, Finn. Stand in front of me.” She grabbed him by the wrist and guided him towards the bed. As she sat down, her body seemed to be slightly squeezed more by her clothing. Her pants creased where her legs bent, but smoothed out over her calves and thighs. Her stomach, which mostly couldn’t be covered by the measly hoodie, stuck out like a pink, gummy pillow. Even sitting down, she practically matched him in height.  “Now lower your shorts.”

Finn was visibly uneasy. His legs kept shaking which travelled up through the rest of his body. “Wha-wha-wha?” The Princess sighed and scratched at her temple.

“Look, I know your…situation was because of my, er, ‘updated physique,’ and I probably could’ve done a better job in concealing it, so I am somewhat responsible for…this.” She again pointed at his stiffening rod. She saw a dark spot near the tip of it. Every so often she noticed it pulsed and the damp spot grew a bit larger. “Oh Glob…uh, we should really speed this up. I don’t want you to stain your pants.” Seeing he wasn’t going to move anytime soon, the monarch took the reins and led the boy’s hands to his waistline. “Just like that, aaaaand-!” Leaving his hands at his waist, she threw down Finn’s pants and underwear in one swift movement. His raging excitement bounced up and almost collided with her cheek. She reeled back in shock, watching as the appendage, swollen and a shade of red, twitched in the open air. “Glob…does it…does it hurt?”

“N-no…” Finn finally responded. He looked down to see it staring right back at him. His shirt fell lazily onto his genitals, no longer able to conceal his shame. “Do you…? What are we going to do?”

PB looked down to see his cock twitch and a small amount of precum leak out. The mushroom tip was already gleaming from being bound in his pants for so long. Laying a finger on her chin, she finally looked up at him and smiled.

“Well, I figure I could give you what made you so excited in the first place…” She brought her hands to her abdomen and squeezed it enthusiastically. Finn’s dick jumped and another trickle of precum emanated from the tip. “Geez…um…here, come here.”

Drawing him closer, she pulled him into an embrace, albeit a slightly awkward embrace. Her chest was far too large to wrap her arms around him, but she was able to pull him in tight enough to where his meatstick was pressed into her stomach. It pulsed in coming into contact with the gummy substance and spread a dab of clear, sticky fluid onto it. Finn shuddered in delight as more of the softness rubbed against him. His hands went to the Princess’s shoulders and assisted in holding him close to her.

“Gah-! Finn! Why is it so lively?!” Princess Bubblegum exclaimed, watching sweat bead down Finn’s brow. He huffed and bit his lip, trying to stave off the looming pressure in his loins.

“It-! It’s just…really happy to feel you!”

The Princess blushed seeing one of the most prominent figures in Candy Kingdom history in this light. Looking over to the door, she could still hear the party downstairs going on. Diverting her attention back towards the hero, she decided to throw in another offer.

“Here,” Her hand went to the slot made by her hoodie and pulled back on it, revealing more of her ample bosom to the boy. “It’s still a little sticky from the punch, but I suppose, if you want, you can lap it off?” Finn’s eyes looked like they were going to pop out of his skull. His dick still slipped across her plush belly, but now he began to drool, watching the Princess awkwardly try to disrobe the soiled top. “Uhh, Finn?” Without further hesitation, the boy dropped his head and began to lap at her mammaries. The punch residue only added a slight cherry flavor to her as his tongue scoured her chest. Bubblegum flinched slightly at his abrupt loss of inhibition, but quickly adjusted to the new change in mood.

As his tongue trailed along her skin, he began to thrust against her stomach. His writhing mass pushed against her soft, doughy midriff, leaving its own gleaming coat. Before long her found an indentation that his rod found accommodating and quickly began to thrust into that. The Princess let out a sharp laugh in response.

“Fin-! Finn! Tha-HA-t’s my! My belly butt-AHA!” Pushing her stomach closer together with his hands, he began to thrust into the soft mass he had created. His movements rocked the two as well as the bed the Princess sat on. She looked on as an uneasy expression spread across her face. Her breathing grew heavier the more the boy thrust into her. His spit began to act as a lubricant, allowing his face to slip deeper into her cleavage. She squirmed as he licked up the sweat beading into her sweet canyon. He was never like this in the presence of her previous figure; did something about him change during his last adventure?

She hadn’t the time to think as his lips began to suckle on any part of her bosom he could find. All-the-while his hips continued to thrust into her midsection. She tried to hold him still, but she could barely keep him steady. “Finn! Finn! Slow down, you’re going to suffocate in there!”

In response, Finn pulled his head up. His tongue wavered out, a small bead of saliva hung for a moment before falling and disappearing between her breasts. Before she could respond, he leaned in and planted a deep kiss on her lips. She felt his tongue slip into her mouth, lapping at the insides of her cheeks and behind her teeth. A shiver went up her spine, resulting in a moan escaping from her throat which only spurred the boy further. She could feel him throb against her stomach, as well as his precum begin to build up the more he thrusted into the makeshift fold in her fat.

“Fi-! Fi-hnnn!” She tried to catch her breath, but only ended up swallowing the built up mixture of her sweat and Finn’s saliva carried in by his tongue. As he finally pulled away, their faces shared the same shade of crimson.

“PB, I’m close.” He huffed, reeling over and putting his full weight on the balls of his feet.

The Princess’s arms went behind her to support both of them. Finn’s thrusts were becoming more drawn out, more vulgar, and it took what remaining strength she had to ensure he didn’t fall on top of her. “Finn! Wh-where are you going to…finish?!” The boy ignored her question and instead began to pound into her midriff even faster. His throbbing prick slid effortlessly in and out of her naval, now properly lubricated with his precum “Fi-HI-nn?!” The more his groin slapped her stomach, the more apparent his intentions were. “Wait…wait a second! DON’T YOU DARE-!

Without warning, Finn pressed his face into her cleavage once more. Before the candy ruler could protest further, she felt a sudden warmth fill her naval. Her cheeks flushed as a Finn let out a loud groan, only muffled by the mass of her breasts. Her stomach was pressed harder together to stimulate his prick even more and she could feel his splooge begin to seep out. His hips slammed into her a couple more times before coming to an exhausted halt.

Finn tilted his head to the side, taking in a gulp of air as he still stood imbedded in the Princess. His dick was still erect enough to where she could feel his pulse. With a passionate moan, he pulled himself free, his member shining and covered with cum and streaks of pink.

Princess Bubblegum picked up her chest to get a better view of him slowly growing flaccid, as well as the stream of sticky fluid flowing onto her pants. “Holy stuff, Finn…”

The boy breathed in deeply before wearily getting to his feet. Matted clumps of hair stuck out of his hat as he fixed his posture.

“Hah, uh, sorry about that, Princess…” He rested his hands on his knees and noticed his pants were still around his ankles. “I, ahem, I should probably get dressed.”

“Yeah, yeah go ahead.” She responded, looking at herself. “Geez, Finn did you get it all out at once?!” She dropped her hand and felt where she could still feel it flow down her stomach. “Egh, it’s everywhere…”

Finn didn’t know how to respond. He couldn’t even explain what just happened. All he knew was that he probably needed a towel.

And the Princess too.

“It smells too…” She lamented. Finn turned so he didn’t have to look at the atrocity he had just committed, but he could still hear her trying to compose herself.  “Do humans always…release this much?” The boy immediately felt ashamed, he had practically forced himself on a longtime friend and the ruler of the Candy Kingdom at that. He felt awful, even if she volunteered to assist him. “Wait a minute, Finn!” He heard her exclaim. Peering over his shoulder, he saw her standing up in joy. “Look! My pants don’t fit so tightly anymore!”

Finn took a moment to take in what she just said. His mouth hung open for a brief period before he responded, “How…how did that happen?”

“I think, and if I’m right then all scientific knowledge up to this point can be thrown out the window, that something in your seminal fluid counteracted my biomass regeneration formula!” She pulled at her stomach and let it fall back down with a bounce. Finn could tell it wasn’t as rotund as it had been previously. “Although, I’m still a bit too big to get out of them…” She rubbed her chin as she thought out loud.

“Uhh…is there a way to fix that?” Finn squeaked, hoping her could finally stop being half-naked.

Princess Bubblegum thought about it for another second before her mouth bent into a half-cocked smile. “I think I’ve got a hypothesis. However,” She slipped her fingers into the neck of her hoodie and pulled hard. The teeth broke apart and the garment was ripped asunder sending bits of metal every which way. Her breasts fell out and bounced slightly, squashed together by a bra obviously too many sizes too small for them. Admiring the dumbfounded expression on Finn’s face, the Princess dominantly stood with her hands on her hips. “I’m going to require a few more samples.”