Both Bentley and Derek's lives have changed in around five or six minutes, with lasting ripples for not just their lives together in college but also the lives each of them would grow into once they enter the world from the bubble of university life. If the human never acted on his desires, if he shrunk under the hypothetical weight of being rejected by his bunkmate, then a future of mutual happiness and joy would have never come to fruition. For both him and the Beedrill, they would only ever be college friends, drifting out of contact from each other once they graduated, settling into lives of tolerable monotony. An inkling would form at the back of their minds, a dull, throbbing thought that they missed out on something but never placed what that something was. But that's not what happened; Derek made the bravest gamble in his entire life, and the reward was love - unconditional, romantic, all-consuming love that made everything that wasn't Bentley Delanges colorless and bland.
And for Bentley, the feeling was more than mutual. The Beedrill didn't love the human because he was brilliant - no, the Pokemon internally smirked with some pride that Derek came to him for help with studying more times than the other way around. Bently didn't love the human because he was kind and patient, which he was, and made them become friends in the first place. Bentley didn't love snuggling his bunkmate into the pillowy flesh of his titanic stomach and chest because he was tiny and adorable, like a little plush toy - though prime cuddling material the human was rapidly turning out to be. So why does Derek cause the Pokemon so much raw and pure jubilation? What was it about him that made Bently feel like he was on cloud nine as he rested his head against the twin hills that were his moobs?
There was none.
Bentley always considered Derek a good person; from the first day he met him and throughout his time at college, he gave the Pokemon zero chances at thinking there had ever been an even slightly heinous bone in his body. But that absence of shameful personality traits only served to solidify their platonic relationship; Bentley loved Derek because he was his. There would never be any other explanation, and he needed none; it was the kind of affection that comes, not as a product of rationale and data analysis.
"I love you too, buddy," Bentley repeated his earlier remark. At this point, it was a mere formality; the Beedrill had already sent the message to Derek when he first planted his lips against his, but those were the only words he could think of to say. A white hand came down to rest on his bunkmate's hair, content to slowly, softly stroke the primate's skull as its owner sank serenely into the toasty warm softness that was Bentley's bloated body. The human, in response, let out a barely suppressed giggle - a noise the Beedrill was sure he had never heard him make before. An adorable noise that made him want to keep him there against his chest forever so that he could protect him from any who would disturb his happiness. "Heh, look at us...a couple of dorks, huh? I never...I never thought tha-..."
However, before Bentley could go on with his speech and vividly articulate to Derek how he never expected to feel this euphoria, he was interrupted. Not by his bunkmate, who was content to be quiet and ride the waves of billowing flesh as his body heaved up and down in time with the Beedrill's breathing. Not by Bentley's stomach letting off an impatient roar of hunger that demanded its owner focus all its attention towards the next bit of sustenance that can be shoved into his gullet. No, Bentley cut himself off as, just like the love he had for Derek, out of nowhere came a thought that his psyche couldn't throw away. "Uh...D-Derek...?" The Beedrill, whose voice was usually the epitome of relaxed and sophisticated confidence, stuttered meekly in embarrassment. "As much as I love this thing we're doing right now...I, g-guh, er...want to do something...more."
"...oh?" Derek raised his head from the warm embrace of Bentley's chest to see a shy smile having been plastered to the Beedrill's face. The human couldn't lie and say he wasn't disappointed at the idea that the snuggling session they were having might come to an end, but at the same time...more? His heart pounded in his chest at the thought of something more, and the adorable little grin that the Beedrill sported begged the human to ask further. "W-w-well, go on! Don't leave me in suspense here~." The human encouraged as best he could, and Bentley opened his mouth to speak before snapping it shut with a timid mewl. Whatever this idea was, it was too embarrassing to speak aloud.
Bentley chewed his lower lip and leaned his head, flabby chin rolls and all towards Derek's without waiting for an invitation. The human blushed as he felt the lard-stuffed, silky-soft furred cheeks press up against the side of his skull. However, as the Beedrill mustered the courage to whisper the thought that assailed his mind, the human froze in shock as the blood rushed to his face at a more potent pace, making his visage as red as a cherry. "We don't have to try it if you don't w-want to!" The mountain of fat masquerading as a Pokemon hastened to say after the human fell into silence. He retreated his head back, expecting to find his bunkmate with a disgusted expression on his face, eyes wide and mouth agape at the notion.
Instead, Derek had a dopey smile on his face, one that Bentley soon found himself mirroring.
Bentley Delanges was rich. Insanely, immensely, impossibly rich. He didin't carry himself as such, of course; he didn't live up to the stereotype of an arrogant, pretentious brat with a silver spoon sticking out of his mouth. But having two of the most powerful, influential people in the world be your parents certainly didn't leave him to live the life of a starving academic at university. So when his growing frame soon began to put severe stress on the housing he and Derek called home, his answer wasn't to go on a diet but to make the rest of the house bigger to compensate.
And out of all the adjustments that came to the house funded by the infinite wellspring of funds that was Bentley's parents, Derek's favorite had to be the bathroom. A financial donation to the university convinced them to look the other way when a wall was felled to merge the bathroom and guest room into one giant water closet, large enough to fit the titanic Beedrill. And while the rest of the house was humbly furnished, this expanded lavatory was spared no expense. Derek was on campus the day the construction took place, so he relied on Bentley to tell him his embellished version of the story. A phalanx of some twenty engineers poured into the home one day to pool their collective expertise into designing the PERFECT shower, with every bell and whistle you could imagine and even a few you can't.
Standing naked in the massively colossal shower, Derek felt small, shivering from the lack of clothes. The compartment reached the ceiling, which was vaulted to make sure Bentley wouldn't hit his head, and took up a fourth of the powder room. The human doubted the water fixture's mystical properties as Bentley had described it to him, but a showerhead that gushed gallons each second was impressive enough. Of course, the controls were positioned beyond his reach, being designed with the Beedrill in mind, so he used a step-ladder to operate his hygiene. Stepping up to the final ledge, even on his tippy-toes, he still barely reached the knobs, but eventually, ethereal bullets began to cascade around him from above.
Just as the water came on, the ground began to shake, nearly sending Derek to crash down onto the shower floor. These quakes were commonplace when living with a Pokemon as impossibly fat as Bentley, but this time, the human knew that those steps would grow louder and the tremors heavier. Derek found his breathing pace accelerated as his heart hammered in his chest, but a grin was on his face that nothing on earth could take away from him. The door to the brand-new bathroom opened, and in came the same Beedrill the human had flopped his frame on top of just some minutes earlier...
...just as without clothes as he was.
The room was filling with steam, but the vapor did nothing to hide a single inch of the land-whale's blubbery body from his bunkmate. Without any fabric to bravely attempt to cover the Pokemon's acreage of flesh, his body had expanded ever so slightly outwards from the last time the human saw him. His black and yellow striped abdomen surged ever so further across the tiled floor that it usually did, his soft, gently sloping moobs billowing higher into the air like the mountains they were. With nothing but soft fur covering them, his hips had grown to take a fresh bit of the surrounding doorway with them as he walked inside.
And Bentley kept walking.
And walking.
And walking.
Until Derek was looking up at looming, 11 feet tall colossus plugging up his only escape route from out of the shower he put himself in. "Are you...sure you still wanna do this?" The Beedrill bashfully rose a lard-stuffed appendage to rub the back of his neck awkwardly as he gazed longingly at the sight of a naked Derek in front of him.
"...yeah." Derek nodded simply. There was nothing else for him to say. There was nothing else he could say.
Choice 1: Bentley steps into the shower with Derek, and the two of them take turns cleaning each other's forms.
Choice 2: Bentley steps into the shower with Derek...but slips against the wet tile and falls!
Choice 3: Bentley steps into the shower with Derek, but the two of them have more than just hygiene on their minds~