The vast door of the apartment swung open. It was an extra-wide door, meant for an extra-wide occupant.

Prrrrttt

"Hmm hmm," hummed Shinji Ikari, sitting in his bariatric wheelchair, wallowing in his poop. He gazed over his shoulder, his bloated chins rippling as his fat head moved. "That new ice cream parlor is certainly delicious, Kaworu-san."

"Indeed it was, Shinji-kun," said Kaworu Nagisa, stroking Shinji's shoulder. Shinji sighed contentedly. He loved being touched. Kaworu smiled at him. "Now, come, let's go to the bedroom and get your diaper changed."

Kaworu pushed Shinji in the wheelchair through the enormous apartment. It was very large, and very luxurious, clearly very expensive and built with a large fat person in mind. Shinji of course was one such person. He currently tipped the scales at 376 kilograms. He oozed in a blob everywhere in the wheelchair, his huge shelf butt blooming behind him and giving him a massive seat, his gigantic thighs puffy and pillowy as they spread wide, his vast belly jutting in front of him, so big a full-grown adult could have sat inside it. His fat breasts were lolling to the sides of his gut slope, their plump nipples visible under the floral fabric of his muumuu. His enormous flabby arms rested on the arms of the wheelchair, sagging with blubber. He had a fat pig's face, billowing with its giant jowls and triple chins.

Shinji wore an enormous muumuu, a green floral-print dress the size of a large tent. He had also recently had his nails painted white, and a few weeks ago he had gotten his ears pierced, and was currently wearing expensive pearl earrings. Kaworu had put makeup on him, foundation and blush, and he had deep red lipstick on his lips. He looked astoundingly like a woman. His short-cut hair still marked him as a male, though. The whole effect was ridiculous, and to strangers on the street the fat gay boy was an object of hilarity and disgust. But Shinji didn't notice, and didn't care. All that mattered was that Kaworu loved him.

They pushed into the bedroom. Coming close to the bed, Kaworu then began to take Shinji's dress off, peeling the giant muumuu off the giant boy's body. As his bare form was revealed Shinji appeared fatter than ever, a huge oozing blob of pale lard, his enormous gut and thighs riddled with stretch marks. In the back, his huge bariatric diaper was on display, a 9XL size, decorated with hearts and rainbows. It was an infantile pattern, and Shinji had the look of the world's biggest baby, a colossally overgrown infant.

"Up we go," said Kaworu, putting his thin arms under Shinji's blubbery armpits. With incredible strength, he lifted the immense former Eva pilot out of his wheelchair. Shinji was almost totally immobile; he hadn't walked meaningfully in almost a year. Kaworu backed him towards the bed, and Shinji weakly put his chubby feet on the carpeted floor, helping to steer himself as his caretaker maneuvered him. His vast butt, jutting out behind him, hit the bed first, and slid across it. The huge load of feces in it shifted and bunched. Kaworu smiled tenderly at Shinji, and leaned him back, settling him on his back on the bed. "Such a good boy."

"Ohh, I do love a nice diaper change," said Shinji, idly tapping his belly. "But then, it's not so bad to have a full diaper. These ones you get for me really are nice, Kaworu-san. They're nice and sturdy and they only let a little smell leak out."

"Only the best for my pampered prince," said Kaworu gently. He leaned in, and kissed Shinji on the lips. Shinji giggled. Then Kaworu maneuvered around his vast lower body, and undid the diaper's taped sides.

Opening the diaper up, Kaworu smiled to see the gigantic mound of shit that was revealed. Shinji Ikari had taken quite a large dump. He'd started to defecate not long after they'd left the apartment for their excursion, and he'd emitted a few more loads throughout the course of their meal and their dessert. A goopy, slimy slurry of feces in a big pile was visible. Kaworu, not batting an eye, pulled the diaper away and wadded the huge mess up. The wadded-up diaper was as big as a medium-sized dog; Shinji's diapers were very big and inevitably held a lot of poop. The pilot of Unit-01 was an absolute shit factory, producing dozens of kilograms of waste every day.

Kaworu wiped Shinji's undercarriage with numerous baby wipes, cleaning and clearing up all the filth. In no time, Shinji's huge lower body was as clean as it had ever been. Shinji sighed contentedly. Kaworu was always so gentle.

"Ah, Shinji-kun... I think it's time for some pleasure."

"Oh! Unh," he grunted as Kaworu reached into the depths of his fat pelvic area. Kaworu reached beneath his hanging belly, deep below his fupa, into his sweaty flab depths. Shinji made an 'o' face as Kaworu found his penis. Kaworu squeezed his testicles tightly, and Shinji cooed in delight. Kaworu then grabbed his cock and began to tug. He kept squeezing Shinji's balls even as he played with his penis, molesting Shinji as Shinji smiled in pleasure.

"It's so nice how small your penis is, Shinji-kun," said Kaworu gently, continuing to jerk him off. "Even fully erect it fits completely within my hand. Such a small, tidy penis. Another part of you that is perfect."

"Ohhh," moaned Shinji as his pleasure rose. "Ohh... Kaworu-san... I used to... used to hate how small it was..." he licked his lips, "but you've taught me how nice it is to have a small penis. If you love it, Kaworu-san, I love it too... ahhhhhh," he sighed contentedly as Kaworu brought him to climax, the tiny penis shooting out spigots of semen.

hsssss

"Ooop, didn't mean to pee on you, Kaworu-san," said Shinji as urine leaked out from the innards of his lower fatness.

"Quite all right, Shinji-kun," said Kaworu, drawing out his hand stained with urine and semen. He grabbed a baby wipe and cleaned his pale hand off.

"Kaworu-san, do you think we could have sex later tonight? I really want you inside me, I always do when I've had a big poo poo."

"Of course, my pet," said Kaworu with a smile. "But first, I think we should order some cheeseburgers and fries for a snack."

"Oh, yes!" said Shinji, his fat face still flushed red from the ejaculation. He licked his lips. "Oooh, a nice snack... that sounds perfect!" He patted his giant gut.