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Aziraphale hasn't planned anything like this, first of all - because he never planned to help Gabriel. But to leave him alone would be cruel, so Aziraphale gave him a helping hand.
Living on the Earth in full human form was a perfect punishment for the failed Apocalypse, and it is exactly what Gabriel deserves: nothing painful or hurtful, just a lesson in good manners. But somebody should watch Gabriel. Heaven won't let him die, but yet - Aziraphale decided to support Gabriel and give him a job and a room. And make sure he understands how to take care of the human body, and how much food and sleep it needs. Surprisingly, Gabriel knew enough from the start - he didn't like it, of course, but with enough diligence, Aziraphale helped Gabriel find the right way to fit into human life.
He wouldn't accept any help like a donation, but Aziraphale needed someone to help digitize and catalog the store's contents. And Gabriel was literally created for a job like this. So it was a sort of mutually beneficial agreement. They never hated each other, so it could work.
Aziraphale preferred to see things that way. Don't focus on how good it feels to have control over Gabriel.
Give him documents, fulfill small requests, and, of course, give him food.
Aziraphale wouldn't say that Gabriel has exquisite taste in food. Actually, he prefers simple and satisfying things - but it doesn't mean that he should not be pampered with something nice. Even Gabriel deserves nice things - after all, it could be a gateway to becoming a nicer person.
And he always needs food. In the case of Gabriel, the old truth about the way to a person's heart is through his stomach is more accurate than ever.
Gabriel is a little too literal about eating every time his stomach is empty. Not exactly the right approach to the human body, but Aziraphale will not condemn him. Another thing that Aziraphale is trying not to focus on it's his own little lust about changes in Gabriel's body.
This time, when Aziraphale comes to Gabriel, he is reclining on the sofa, half asleep.
He pays a lot of attention to his daily sleep. Gabriel's ideas about what humans really need to survive are quietly formal, and sometimes it's just lovable.
Now his abs are fully relaxed, and his gut is pouching out in all roundness. When Gabriel is awake, he always keeps it sucked in - and with his strong muscles, it has always more or less been successful. He can't hide all the gain he had - not with love handles thick like that - but Gabriel doing his best, and it looks charming in some way. Even if Aziraphale prefers to see him in full roundness, all attempts to hide changes add up to a fascinating show. Gabriel lives in a world that never changes - and his corporation couldn't change as well, no matter what he is doing with it.
Aziraphale helps him with this little game of denial. He wouldn't say if it's about control or a heartfelt endeavor to assist Gabriel in finding even a slight sense of comfort in human life. The fact that Gabriel seems still doesn't fully trust him is not helping.
Aziraphale is not a fan of balancing on the edge, but he finds this experience pretty captivating.
Today he is not in the mood to philosophize or search for the truth. Aziraphale lets himself get carried away by the moment - the sensual, sexual aspects of it. Gabriel looks more eye-catching than ever. Even if now he's wearing a sports suit instead of elegant slacks and a well-tailored shirt - he hates fiddling with fasteners and buttons without miracles. Or he's not ready to know how tight his clothes became. Most likely none of his shirts, fitted to the old version of the body, could have been buttoned around the expanded waist.
Aziraphale barely can fight the desire to disturb Gabriel's dormancy and touch him. Squeeze that gut, sprawling on Gabriel's lap like risen dough, and find out how deep his fingertips will dig into the soft fat.
He won't do it - that would be rude.
Instead, Aziraphale makes cough in a low voice, drawing attention to himself, and Gabriel shudders, waking up. He shakes his head and smiles, slowly getting up - and, as Aziraphale expected, sucks his belly in as fast as can. It looks almost like a magic trick. For a person who always treated his body more like a suit than a part of himself, Gabriel manages it perfectly.
"Did I disturb you?" Aziraphale returns his smile. "I brought donuts, as you asked."
Gabriel's eyes light up the curiosity, and he slowly gets up. He's still a bit nervous about Aziraphale, but Gabriel appreciates him as an expert in food, and it helps to break the ice. Gabriel will never say it out loud, but he's getting more and more curious about food - and, probably, some other aspects of living a human-like life. At least, he seemly loves to care about his body, loves to use it and slowly getting more and more involved in brief earthy pleasures. Aziraphale sees it that way. He loves to be optimistic.
"I planned a paperwork." Gabriel looks at the desk for a second. "Donuts don't go particularly well with this. Wouldn't want to stain the paper."
He pauses a little - more likely not for giving Aziraphale time to answer, but for making his own words intriguing undertones.
"Maybe you'll help me?" Gabriel steps closer. He moves quickly and smoothly, easily taking over all of Aziraphale's personal space. Some things cannot change. "I will be very grateful if you feed me."
It doesn't sound like a thing that Gabriel would say. Or, more correctly, it doesn't sound like a thing that Aziraphale assumed Gabriel would say. For a few painfully long seconds, the tension becomes mutual - Aziraphale has no idea what's going on: is it flirting or some kind of trust test? Or, maybe, Gabriel is trying to push his own limits and wants to use Aziraphale for this?
He probably does.
"It will be a great pleasure."
Gabriel smiles, stepping even closer, and Aziraphale intercepts the box better before slightly stepping back and putting it on the table. He never was a risky person, but the promise - or is it a temptation? - is too good to resist.
Looking right into his eyes with a hungry interest, Gabriel licks his lips and leans on the table next to Aziraphale. Gabriel rarely gets involved in anything besides work responsibilities - but when he does, the new interest captures him. So it's a good sign.
It means that everything anyhow goes the way Aziraphale wanted - he caught Gabriel's attention, and all that is left is to lead him down this path.
He opens a box and takes the first donut, and slowly puts it to Gabriel's face. The feeling of physical closeness with Gabriel echoed through his body and soul. Gabriel often enters the personal space of the interlocutor, but now it feels different. Perhaps it's about a genuine curiosity in his eyes, or, perhaps, everything changes the fact that he is now more material, more physical than ever.
And the way Gabriel slowly opens his mouth, allowing Aziraphale to feed him, feels incredibly erotic.
Aziraphale has always had a slight interest in Gabriel. It was neither real sexual attraction nor infatuation, but he allowed himself to a little succumb to Gabriel's charms. And right now, it was pulling him into a whirlpool of desire. The comfortable warmth inside his body is about to thicken into the heat of lust. And Aziraphale doesn't mind.
It's like a scene from an erotic stage play, and that just makes it all even more exciting. Gabriel stands almost still, pryingly watching Aziraphale; the glance is still strained, but slowly tension dissipates, replaced by curiosity.
Gabriel slowly chews on the donut and swallows, closing his eyes. When Aziraphale brings a second donut to Gabriel's lips, he leans a little closer, taking a deep breath that sounds almost like a sigh; the distance between their bodies is shrinking. It might be almost inappropriate, but Aziraphale finds everything too exciting to ask Gabriel to back off.
Flirting can take strange forms - Aziraphale has little experience - but what is happening is still surprising. It feels like Gabriel is trying to take back power and control in this relationship - and he's fine with the fact that he also changes the relationship itself.
Taking the third donut, Gabriel tilts his head slightly and runs his tongue over Aziraphale's fingers. It's a brief movement, but Aziraphale gasps, feeling it. He never thought that Gabriel might do something such sexual - or anything sexual at all; but, to be honest, Aziraphale as well never thought that Gabriel might not even feel hunger but develop something very close to gluttony.
Maybe now he is discovering other desires.
Gabriel's taking his sweet time eating, breathing getting slower and slower. His stomach probably wasn't empty when Aziraphale came, and with each donut, it's getting harder to keep his belly sucked in - but Gabriel doesn't give up.
He keeps his little pretense even if his tired abdominal muscles are painfully tense up and probably aching. After another donut, Gabriel slightly leans back and pats his middle with a noisy sigh; for a second his beautiful smile fades, he clearly is strained. His stomach is spacious enough to let Gabriel do what he plans - whatever the plan is - but it's clearly more difficult than he imagined.
Standing so close, Aziraphale not just sees, but almost feels the warm doughiness of Gabriel's body. And it fills him with more lust than he could have imagined.
Things keep going. The donuts disappear one by one. Gabriel is breathing harder and harder.
Penult donut makes Gabriel finally surrender. He relaxes his muscles - and his gut expands forward again, touching Aziraphale's left hand. His fat feels dense, almost solid, but a more intense touch reveals how actually malleable and squishy it is, even now, when Gabriel's stomach is full. Gabriel opens his mouth, perhaps about to say something, but Aziraphale hastily, not allowing himself to think, shoves the last donut into his mouth. Gabriel moans back. He looks embarrassed by the fact his heavily swollen belly is displayed like this, but the way he eagerly takes the donut says that he is still caught by the moment. He's turned on - in one sense or another. Or both.
Gabriel moans again.
And it's an invitation Aziraphale cannot refuse, not anymore. He strokes his palm against Gabriel's lower belly before leaning close and slowly runs his thumb into a navel. He's not ready to give Gabriel a squeeze - it could be uncomfortable and may ruin the moment. Instead, Aziraphale gently strokes under his belly, enjoying the warm softness. The thin fabric of the clothes is so stretched that the skin feels almost bare. Aziraphale feels even Gabriel's body hair - he is designed perfectly human-like.
Gabriel didn't try to push Aziraphale away or take a step back. No, he stands still, looking into Aziraphale's eyes with curiosity.
"If you don't like it, just tell me, and I will stop." Aziraphale does not know what is more about - simple politeness or the desire to hear a predictable answer.
"No. Don't stop." Gabriel licks his lips again, taking the last crumbs of icing sugar.
"So, you take pleasure in it?" Aziraphale smiles and moves his hand to Gabriel's side. "Just say it honestly."
Gabriel nods and noisily exhales when Aziraphale reaches his love handle - it's as doughy as he imaged. Aziraphale gives him a little pinch, feeling how his fingers sink into the pliant softness of Gabriel's fat. If Aziraphale didn't see all changes by himself, day by day, he'll never believe that Gabriel could grow that thick, squashable flab on his sides.
"There is nothing wrong with it. It's living in human flesh." His voice still sounds tense, but there is no doubt anymore.
"Yes. And you, beyond any doubt, are getting very fleshy." It sounds more rude than he expected, yet Gabriel doesn't look insulted. He breathes deeply, and his beautiful pink blush blooms on his pale skin.
"It was your plan? First - make me fat and weak, then - seduce and turn me into a dirty, lustful thing?" Gabriel is clearly trying to sound the way he sounded when he spoke from a position of authority, but his emotions, his feelings won't let him.
"My plan was to make you feel better, and I dare to guess that I did it." Aziraphale pinches Gabriel's side once more time, a bit roughly, enjoying all the pliability of his flesh. "And if you are still hungry in another way, I'll gladly help you."
"I let you try. I am convinced that you know enough about pleasures". Gabriel smiles and leans closer, and finally lets Aziraphale kiss him.