The underground dungeon smelled strangely sweet.

Blue crystals lit the stone halls as Kyoka Jiro walked carefully ahead, one hand near her earphone jacks.

“This place gives me bad vibes,” Jiro muttered.

Behind her, Momo Yaoyorozu adjusted her belt while looking around curiously.

“It does seem unusual,” Momo admitted. “But we should stay alert.”

The hallway suddenly opened into a massive chamber.

At the center stood a giant creature made entirely of cake.

Layers of frosting covered its body while a huge mouth filled with sharp teeth stretched across its face.

Momo blinked.

“…It smells kind of good.”

Jiro immediately looked annoyed. “Momo, don’t say stuff like that. That thing looks dangerous.”

The monster growled.

Its mouth began glowing brightly.

Jiro’s eyes widened. “MOVE!”

A massive beam of liquid cake batter fired toward them.

Momo reacted too slowly.

Jiro instantly shoved her aside.

The beam struck Jiro directly in the mouth.

“MMPH—?!”

Warm cake batter flooded down her throat. Her eyes widened while she grabbed her stomach in panic.

“J-Jiro?!” Momo shouted.

Jiro’s body immediately began expanding.

Her stomach swelled outward first, growing round and heavy while her hips and thighs widened rapidly beneath her clothing.

The pressure kept building.

Within seconds, Jiro collapsed heavily onto the floor.

The ground shook softly.

Momo stared in disbelief.

“…No way…”

Jiro panted heavily, cheeks red with embarrassment as her enlarged body settled.

She already looked close to 600 pounds.

“My body feels so heavy…” Jiro groaned.

Momo clenched her fists angrily. “You did that because you protected me!”

The monster roared again.

Momo glared at it. “How dare you hurt my partner like this?!”

The monster fired another beam.

“WAIT—!”

The blast hit Momo directly.

“AHH—!”

Cake batter poured endlessly into her mouth as her body rapidly expanded just like Jiro’s.

Her stomach ballooned outward while her chest, hips, and thighs grew larger and heavier.

600 pounds.

Then higher.

The beam didn’t stop.

Jiro forced herself upright, wobbling badly under her new weight. She leaned one hand against Momo’s massive belly to keep herself standing.

“T-this is bad…” Jiro thought desperately. “It just keeps pouring into us!”

Momo groaned softly as more weight spread across her body.

Jiro’s jacket ripped apart from the pressure while Momo’s outfit stretched tightly against her expanding frame.

The girls continued growing together as the monster force-fed them endlessly.

Momo gripped her stomach. “I can barely stand…”

The monster lunged again.

“Oh no!” Jiro shouted.

Before it could attack—

Momo bit into it.

Jiro froze.

“…Huh?”

The Cake Monster screamed.

Momo swallowed a huge mouthful of cake and stared at it in surprise.

“…It’s edible.”

Then she grabbed another piece.

And another.

“Momo?!” Jiro yelled.

Momo continued eating rapidly while the monster struggled violently.

Her body expanded further with every bite.

2000 pounds.

Then more.

The stretched remains of her outfit finally tore apart under the pressure of her growing body.

“She’s actually eating the monster…” Jiro whispered in shock.

Momo kept going.

3000 pounds.

The floor cracked beneath her enormous weight.

“Momo, stop before you explode!” Jiro shouted.

But Momo only swallowed another massive piece.

“I can’t help it…”

The monster shrank smaller and smaller until only a tiny screaming crumb remained.

Momo picked it up carefully.

Then swallowed it whole.

Silence filled the dungeon.

Momo collapsed backward heavily onto the stone floor.

She now looked well over 5000 pounds, her body spread across the room like a massive blob.

Jiro slowly waddled beside her, still extremely heavy herself.

“You really ate the whole thing…” Jiro muttered.

Momo blinked slowly.

“My whole body feels big and heavy… I can’t move at all…”

Jiro sighed tiredly.

Then Momo smiled weakly.

“But my belly is full… and I’m happy I got to eat cake.”

Jiro covered her face.

“…You’re unbelievable.”