#bulkprowlbee

The only thing better than having one big, chubby partner to feed, fatten, and feel up whenever he pleased was having two partners—two mechs who were softening up in completely different ways, two mechs that were just as happy to devour his food offerings as he was to make them, and two mechs who took up more and more space on the small berth built for three with each and every passing day.

Bumblebee loved watching them grow and gain. He loved watching Bulkhead’s soft, round frame grow even bigger and rounder, the big belly he sported reaching past his knee joints now and still growing steadily. He loved feeling the way Prowl’s lithe frame gave beneath his fingers now, and how the slim silhouette the mech used to boast had become bigger, curvier, and heavier with Bulkhead and Bumblebee’s doting.

They were the perfect trio, Bumblebee and his two partners he slowly worked to fatten up. Bulkhead had nearly doubled in size since the three of them made it official, and since joining the drive to gain alongside their biggest polycule member, Prowl had gained quite a bit, too.

Bumblebee was proud of it. He liked watching the joy spread between them both as they enveloped their small scout between their big, soft bellies, and he loved the way it felt to be buried between them both.

Things were great. Things were perfect. Things couldn’t have been made better, except for when the next day came and they saw the hard work of the previous day spent packing on the extra pounds for both Bulkhead and Prowl…

…but when Bumblebee started to notice the changes on his own frame, the softening curves, the protruding belly, the way his plating no longer fit like it used to and the way his appetite grew with every extra plate he snuck from the buffets of food he prepared for his two lovers, he started to get a little nervous.

Neither Bulkhead nor Prowl would have ever minded seeing him put on a bit of extra weight himself, he was sure. While he spent most of his time feeding them both up and feeling the effects on their stuffed, sturdy bellies, Bumblebee just hadn’t given much thought to his own growing frame. The gaining was clear to him now, though, and the pudge that clung to his frame anymore wasn’t just from a night or two spent binging on cheap snacks while he and Bulkhead spent the late hours yapping away and clicking at tiny remote controllers as they played their games.

No, no. This time… it was permanent. Just like his partners, he was getting fat.

The thought hung over Bumblebee’s helm like a dark storm cloud for the rest of the day after he had discovered the truth. By the time they made it to the evening hours, he had become so caught up in the internal dilemma that he could hardly focus on the more important task at hand—feeding Prowl and Bulkhead sweet and salty snacks while he rubbed their stuffed bellies to help the hefty dinner he’d filled them up with digest for good.

Had Bumblebee realized the worries were written so clearly on his face, he would have fought harder to keep himself rooted in the present moment. There was nothing he loved more than being squished between two of his favorite bellies, though feeding both of his partners at once was certainly a close second. Doing both at once should have been a dream come true for him, but with his mind a mess and his thoughts swirling, he just couldn’t help the way his mind wandered.

It didn’t take long before Bulkhead and Prowl had realized something was wrong. While Bumblebee sat up and felt around for the next bag of snacks, his brow furrowed and his mouth set in a sad frown, Bulkhead suddenly reached up to pull him back down, and Prowl moved in close.

“Wha—hey!” Bumblebee said, startled out of his thoughts long enough to feel a little offended by the interruption. “What do you think you guys are doing? I was just—“

“Don’t worry about feeding us anymore right now, alright?” Bulkhead said gently as he stared down at Bumblebee with that soft, worried face. “Just talk with us for a second, little buddy.”

“Please,” Prowl insisted, pressing close against Bumblebee’s right side. “We can tell that there’s something on your mind, Bumblebee. You’ve been distant from us all day.”

Bumblebee’s knee-jerk reaction had been to pull away and insist that they let him keep feeding and pampering—that was what they were here for, after all, wasn’t it?—but something about the heavy tone of Prowl’s voice and the look of utter concern in Bulkhead’s optics made him pause.

For a moment, he was confused. Then, when he felt Bulkhead’s servo gently slinking around his waist, the fat fingers sinking into the chubby mesh that was growing on his frame, he flinched.

“Ah-hah,” he laughed it off, his smile strained as he squirmed between them. “Sorry. I just… didn’t realize you were—“

“You know it’s okay that you’re gaining, too,” Bulkhead suddenly said, cutting Bumblebee short before he could even finish his excuse. “Right, Bee?”

“I’ve noticed something was wrong with you today,” Prowl added, his own servo snaking up to rest just below Bulkhead’s, his fingers drumming gently against the soft mesh beneath. “At first, I wasn’t sure—“

“But then we got to talking while you were cooking, and we came to a conclusion,” Bulkhead finished.

Bumblebee sighed between them, a sound that carried over to Bulkhead, who sighed in return, then Prowl, whose long, steady breath came back out as a slow, breathy exhale.

“Okay,” he admitted, “so maybe I’ve been… I dunno, a bit self-conscious, I guess?”

“About your size?” Prowl asked, his fingers stilling.

“Yeah,” Bumblebee said. “Well, that, and… the gaining. I hadn’t realized I was putting on weight at first. I—I mean, yeah, I’ve been eating here and there like you guys have, and sometimes I’ll sneak a few snacks in without a mission to follow it up with, but this?”

He poked at his belly, right between Bulkhead and Prowl’s servos.

“This is…” He shook his head, then shrugged. “It’s… it’s new. To me. I didn’t expect it. I’m not against it, either. I just…”

He trailed off again, his words failing him. He felt helpless and foolish, unable to explain for himself just what was ailing him, but a soft smile from Bulkhead and a slow nod from Prowl assured him that both understood his plight.

“It’s unexpected,” Prowl offered up gently. “I can understand that.”

“Same here,” Bulkhead said with a nod, “but Bee, it’s not… it’s not bad, okay? It’s good. I mean, if you ask me, it’s good.”

“I agree,” Prowl said. “It suits you. Besides, why should Bulkhead and I be the only ones here gaining? Why shouldn’t you get to join us?”

He slowly pulled away from Bumblebee’s side and sat up, settling just in front of the pouting scout. After a nod towards Bulkhead, the berth began to shift, and Bumblebee found himself cradled in the big mech’s lap as Prowl crawled closer.

“We all like the change on ourselves, Bumblebee,” Prowl said as he reached for the nearest pack of snacks—a salty bag of chips he knew Bumblebee adored. “Bulkhead and I both like seeing you put on the extra weight, too. Now, we would never force you… but if you were open to the idea—“

He tore open the bag, then reached in, pulling out a massive handful that Bumblebee couldn’t help but drool over.

“—we’d love to help you gain a little, too, just like you’ve helped us.”

Bumblebee couldn’t say no to that. He wouldn’t. It was too sweet, too genuine, too raw. It was something he wanted just as much as them, he knew, and with their reassurance now comforting him, he beamed at the offering and gave a rapid, eager nod.

“Yes, yes,” he said. “Oh, yes please. I’d love to, guys! I’d love to. I’d really, really love to.”

“That’s a relief,” he heard Bulkhead chuckle from behind, the vibrations tickling his back. “Prowl and I may have already stocked up on your favorite treats before this conversation… y’know, just in case you had said yes.”

Bumblebee was already game for it, but after hearing that, Primus… how could he ever think to say no? He tried to speak again, to thank them for knowing him so well and for stocking up on his favorites in anticipation of this moment, but his mouth was stuffed full of chips, and he was forced to chew around them before he even thought about speaking again.

When he tried a second time, another handful of chips was there to stop him… then another, and another… and by the time Prowl’s first bag had run dry, Bumblebee was already too full to even think about giving it another try.

The rest of the night was a blur of big, stuffed bellies, happy smiles and noisy laughter, servos rubbing and sticky fingers wiping streaks of chocolate from Bumblebee’s lips, and the warm, comforting embrace of belly on belly on small, budding belly.

Bumblebee loved every second of it. He savored being fed and stuffed—his first time ever, really—and he enjoyed stuffing his two conjuxes all over again. By the end of it, they were lying in a pile of tangled limbs, swollen bellies packed with food, and dozing off happily atop their rapidly shrinking berth built for three.

If there was one thing Prowl was known for, it was being curious. The motorcycle figured that is how he ended up here. He had first found himself drawn to Bumblebee for just his personal aesthetic tastes and Bulkhead after the whole Dinobot fiasco. Prowl had attempted the best he could to keep those building feelings deep within himself he ended up going one night to confess to the two during one of their 'game' nights.

This led to Prowl walking in on Bulkhead and Bee not only interfacing but for some reason Bumblebee was busy stuffing as much fuel as the minibot could get his servos on into the bigger bot.

Thinking about how that led to multiple talks between the three of them but eventually to the three of them also working out a relationship between all of them made Prowl chuckle. Bee had done what he could to explain his and Bulkhead's actions, sending Prowl things to look up and links he and Bulkhead used in their own exploration. The humans called it feedism, and Prowl thought it was a fitting word.

He hadn't been interested at first in that part of his partners relationship, letting it be something they did together, but he did assist Bumblebee in collecting fuel for the night they had once every other week. Prowl didn't intrude, but tonight... tonight and many others he had been thinking; slipping into Bulkhead's room silently.

Bee was perched attop the huge bots round gut, cooing sweet nothings to Bulk while he pushed another oil cake into the green bots mouth. It would be impossible to miss how much bigger Bulkhead had gotten since landing on earth, and those in the know knew exactly why.

Prowl stood off to the side and watched the two quietly, Bumblebee playfully teasing Bulkhead as he reached for another treat when he caught sight of Prowl and yelped, nearly falling off of Bulkhead. "Prowl! You scared the scrap outta me!" Bulkhead grunts as he pushes himself upright, holding onto the minibot so he can see the other. "You okay, Prowl? You aren't the type to interrupt... did something happen, sweetspark?"

Prowl shook his head but went to sit next to his partners, tapping his digits to his knee. "I... I apologize, but I've been... thinking. Nothing bad, but... Bulkhead, may I ask you something?" Bulkhead and Bee glanced at each other before the large green bot nodded.

"Why?" Prowl realized the question was vague before continuing, "I mean, why do you like doing this?" Bulkhead blushes, scratching his helm in thought. "Oh! Um... I guess it's a few things. Before Bee and me started doing this, I guess I've never knew what it was like to be full. I know I'm big, but rations never seemed enough."

Bulkhead reaches down and pats his belly, it grumbling softly. "I like this, I guess. Being soft on top of being just big. It's... comforting." Prowl nods, a thoughtful expression on his faceplate. "May I... try?"

"Feedin' Bulk? Sure, I don't mind an extra pair of servos." Bumblebee tilted his head in confusion when Prowl shook his head. "No, not that. The ah... being fed." If the sudden puffs of steam coming from the other two wasn't a clear answer, the sudden shocked nods were. "You sure Prowl?"

"Indeed."

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"That's it, sweetspark... last one... wow, Prowl... I didn't know you had this in ya." Bumblebee smiled as he pushed one last bit of fuel past Prowl's intake, and even the motorcycle had no idea he could consume this much fuel.

While Bumblebee had fed both he and Bulkhead, the green bot still took the lions share, but still, for how slim Prowl was, all three of them were entranced. Prowl leaned heavily against Bulkhead's plush side, his tank swollen and resting heavily on his thin thighs. The noises coming from him were unlike anything Prowl had heard, and the feeling, Primus the feeling.

It felt amazing. His tanks rolling and squeezing around the obscene amount of fuel Bee had convinced him to eat was life changing. Prowl could barely open his mouth before belching loudly, moaning as he leaned his head back onto Bulkhead. "We need... to do this again."