“Insolent insect. I should cut you down where you stand.” Minamoto-no-Raikou moved to unsheathe her blade. She watched her prey through sharpened eyes, following the ebbs and curves shaping Shuten-Douji’s engorged form. The oni sat idle on the floor, tremendous thighs spread to allow the mass of her gut to pile in front of her, every inch of her burgeoning with soft, ample roundness beneath the meager straps constituting her outfit. She drummed her fingers along her belly’s uppermost swell while sipping from the rim of her saucer, huge and heavy enough to contest the rest of her enormity, with its slight movement betraying life buried deep beneath its layers of purplish lard, desperately trying to push themselves out. Shuten enjoyed a few more gulps before finally pulling away with a satisfied exhale, heralding a powerful, slimy belch that blasted from her throat.

“Oouurrrrp! Hwoouurrrllk… Ah. Nothing like a drink to compliment a good meal, wouldn’t you agree, Raikou?” Shuten leered at her guest, her lips curling to reveal the points of her fangs. Raikou bit her lip tentatively as she studied the fatty heap pooling beneath the oni’s chest, her gaze fixated on the subtle sloshing of its occupant’s struggles. The unfortunate Servant - or heavens forbid, member of Chaldea’s staff - entombed within its walls fought valiantly against their impending transition into oni flab, yet their efforts earned them little more than the occasional gurgle from the organ. To be little more than nourishment for such a hedonistic creature, eaten and forgotten like any other passing meal… the very thought roused feelings of disgust in Raikou’s stomach. Such a fate had befallen countless maidens while they were both alive. It was her honor as a samurai of the Genji clan to prevent any more casualties.

Raikou bared her teeth. “To think that you would return to your old habits… It was a mistake not crushing you the moment you were summoned. I shall rectify my previous mistake by severing your head from your body here and now!”

“You were wrong to believe I had been tamed, even for a second. Tell me, hag. Who do you think is stewing away in there? Lady Murasaki, the Mochizuki girl, mmm… maybe even that brat? They were so tasty, I just couldn’t resist eating them all up.” Shuten drew slow circles into her tummy’s splaying flanks and let it churn beneath her fingertips. “Not very filling, though. It’s a good thing I see a fat-chested cow right in front of me. Why not join them in there? Let all your worries… melt away inside of me…”

The absolute nerve of this bug to assume she would dare entertain the notion of giving herself up! Heat rose to Raikou’s cheeks as her mind swam with images of dark, smothering walls bearing down on her from every angle. What a repulsive end that would be, to be comforted by the warmth of the surrounding stomach while it dutifully broke her down into a viscous, nutritious soup. She couldn’t bear the thought of never again having to worry about her oni heritage or her pride as the greatest warrior of Kyoto once she had been reduced to inches of fat for the gluttonous demon to sit on. And simply imagining their shared Master sinking their fingers deep into the burgeoning pudge built from her body, witnessing the pitiful state of Minamoto-no-Raikou…

“Enough of these games, bothersome pest. The mere act of looking at you makes me ill.” Raikou shook her head as she turned on her heel and walked away, her long hair bobbing behind her with every step. “Do not mistake this as an act of mercy. I’ll simply swat you once my health improves.”

Shuten shrugged. “Suit yourself. You’ll come around eventually. Cows are meant to be eaten, after all. Uuuorrrp…~”

Raikou cast one final look at the oni’s bare gut. It had gone completely still, left to bubble contentedly around the lifeless heap of meat. Sad as it was, surely it hadn’t been anyone important - Kintoki would have cut his way out in an instant. Shuten licked her fangs, and the samurai quickly averted her gaze, making an effort to temper the anger tangled with a cocktail of other odd, indiscernible emotions in her chest. The insect had grown emboldened to partake in the carnivorous debauchery that had gotten her killed to begin with, smug enough to proudly flaunt her spilling, overfed form for all to see. By all accounts, she should have been squashed the very moment Raikou had discerned that she had taken another life. Such hesitation was unlike her… a cup of tea would help her regain her bearings.

Certainly no strange and complicated feelings had arisen from this.

Definitely not.

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Another FGO collab with the friend I was doing that Koyanskaya one with,  fleshlord! This one isn't exactly tied to the previous ones, I just REALLY wanted to draw shuten and they offered to write something for it : )

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