Well, Homura does know where Mami lives...

In the end, she had decided to go and meet Mami. She was quite familiar to Homura due to their close proximity and was more than willing to help out newcomers, having mentored several magical girls in the (alternate) past. They went to the same school, anyways, so she might as well go over and introduce herself now and be polite about it. Kyubey had no opinion in any direction, saying that each of the choices was "a rational decision from the presented information", which didn't exactly inspire confidence in her. Still, though, the Incubator was willing to point her in the right direction, pinpointing the older girl in her apartment. They walked through the crowded streets, people glazing over Kyubey's presence but still subconsciously avoiding colliding with her body. It freaked out Homura somewhat, but it was relatively tame compared to all the widespread changes, so she was able to ignore it.

They made it to Mami's house without too much conversation, Homura still coming to terms with their alliance and Kyubey content to simply walk along if Homura didn't want to speak. They did agree to keep Homura's time travelling a secret, the magical girl coming up with a relatively plausible explanation with the Incubator's help. The dark-haired girl paused in front of the door, not wanting to interrupt her fucking someone like she had with that other magical girl. It swung open on its own anyways, Mami's voice calling out with a "Come in!" from somewhere within. Kyubey must have messaged her ahead of time, which made Homura feel a little stupid for being so wary. Of course, she might be having sex anyways, who knew.

They walked into Mami's room, the door automatically closing behind them. Mami's cozy little apartment hadn't changed much at all, which Homura found comforting. She wasn't there though, which meant that she was in the small kitchen. After a little hesitation, Homura walked into the side room and got her first look at futanari Mami.

The very first thing she noticed were her gargantuan breasts. They were the largest pair she had seen in her life, and considering every single person she'd seen this reset had had boobs bigger than their heads that was saying quite a lot. Homura stared at the watermelon sized knockers and their gravity defying roundness, marveling at the sheer size and weight of it all. How the hell did she walk at all? Did she have help or something? Well, not like Homura had any room to speak here, considering her similarly oversized ass, but even so... Her nipples and areola were similarly oversized, fat nubs sticking out from the red circles. They were currently squirting milk into a set of tubes connected to a tank, Mami manually massaging her tits and coaxing the fluid out in a steady stream. Her movements were incredibly broad, covering as much as she could of her ridiculous endowments with a circular motion. She then grabbed onto her tits around the areola and began squeezing inwards, forcing the milk out in thick white jets. She moaned with each compression, breathing heavily and moving her breasts around even more. Finally, with one last long spurt, the milk flow slowed a little. Sighing with happiness, Mami popped the suction cups off of her boobs, letting them return to their natural place. Homura finally managed to tear her eyes off of the veritable mountains of tit-flesh, and checked out the rest of her naked body. The rest of it was the standard fare: you know, nearly foot-long dick, big cum-heavy balls, bottomless pussy, legs for days, unblemished skin, big round ass, the usual. Her hair was still curled into drills, and Homura still couldn't believe that it was natural. She must have curled it somehow, right?

The blonde looked at the newcomers, and smiled in greetings. "Hello, Kyubey-chan, and hello to you as well. I'm Tomoe Mami, nice to meet you." She dipped her head and bowed, heedless of the compromising situation she'd just been in and of the nude state she was currently in.

"Uh, Akemi Homura. It-It's nice to meet you!" She slipped back into her "scared newbie" tone of voice, trying to play to Mami's soft spot for rookies. She returned the bow, albeit much faster. Kyubey watched the proceedings, that permanent smile still on her face. If she hadn't known better, she would have sworn the Incubator found it funny.

"So, you're the unique magical girl?" Kyubey nodded in confirmation, giving a little "mhmm" sound as emphasis. Their plan was to claim that Homura's condition was a consequence of an alternate contract due to a special set of circumstances regarding Homura's DNA makeup and emotional patterns. Like all of Kyubey's lies of omission, it was technically correct. "Alright, sit down then, I'll get some tea for you. Yeah, yeah, I know Kyubey, you don't need tea, but it's my duty as host to provide for you." Said albino was about to register a complaint of some kind, but was preempted by Mami, and merely shrugged instead.

They gathered around the familiar living room table, the curly haired girl carrying a teapot. Homura was slightly worried that it would be like that tea ceremony that Hitomi was describing, but no, it was just normal black tea. She sipped at it politely, not particularly inclined to like it, but not particularly offended by it either. Maybe jacking off into it would have been a good idea after all - she would have to try later.

Homura felt the silence was getting a little awkward, but didn't feel like breaking it just yet. Mami, on the other hand, did. "So... what's different about this 'experimental system'? Do you have any cool powers to show me? Or maybe that great ass of yours is magic?"

"Umm… No magic ass, but cool powers, I guess? Let me transform first." She took out her Soul Gem, drawing power from it. The familiar costume materialized itself, fitting tightly against her overly endowed body. Not as overly endowed as Mami in the chest department, so she supposed it was slightly easier, but her giant ass took quite a bit of pantyhose to cover.

Mami ran her eyes over Homura's uniform critically. "That's so much clothing though..." She looked puzzled even at the idea. "Don't you feel incredibly constrained in that? Who came up with that costume?" Homura shrugged, letting Mami continue on her incredulous appraisal. "It doesn't even have any room for your penis! It's just stuck there! Something had to have gone wrong here." It was rather uncomfortable, that was true, but the more important issue was that her dick kept rubbing against her stomach, which was making her pretty horny- hornier.

Kyubey chimed in with some misleading but true analysis. "Akemi-san's contract was based on an alternate framework focused on combat, and her magical girl transformation has manifested in a way inconsistent with her physical form."

Mami sighed. "Yeah, I'd say it's inconsistent! Seriously, I know you don't have anything to do with people's transformations, but I think you should have been able to fix poor Homura-chan's problem." Her plan of endearment must have succeeded in gaining the older girl's sympathy, especially if she had already started using her first name. Although, it sounded like a very Mami thing to do, trying to cultivate friendship and closeness with a perceived junior.

"Rest assured, we are working on potential solutions to her situation. One such solution requires your help, which is why we are here."

The other magical girl raised an eyebrow. "And that is?"

Homura chimed in for the first time in a while. "Kyubey-san thinks that you might be able to recharge my Soul Gem." She held it aloft for her to inspect. "It doesn't work normally, so I don't want to do a lot of magic changing stuff just yet."

Looking at the proffered crystal, Mami let out an inquisitive hum. "Well, it definitely doesn't look like any Soul Gem I've seen. Have you met any other magical girls, Homura-san?"

"Uhh, I don't think so." Not in person, at least.

"Then here, I'll show you mine." She took the hairpin out of her hair, and transformed it back into its ovular shape. It looked about the same in shape and composition, but there were darker flower imprints within it, and the metallic outer coating was a subdued grey color that contrasted with the bright inside. A pin with a flower head ran through it, reminding Homura more of a Grief Seed than its precursor. The grief inside of it didn't swirl around like hers did, it simply sat at the bottom, dormant.

"Got a good look? Alright, let me show you what a magical girl is supposed to look like." She grabbed the gem back and then held it in front of her bountiful chest. She closed her eyes, and then called out. "Candeloro!" Homura's eyes opened wide in shock at the name as Mami's body was enveloped in white light. She nearly spit out her tea, but caught herself just in time. Kyubey merely watched her reaction, coolly analytical as always.

As the light faded, Homura saw a different Mami than the one she was used to. Instead of her uniform, Mami was now clad in a very skimpy blue skirt, one which basically suggested coverage rather than actually covering anything. It didn't even try to cover any of her truly massive chest, giving up and going around the back. There was an untied ribbon there, presumably to hold them down if she needed. Her legs were clad in a set of criss-crossing black strips of fabric above her brown stockings, which were unchanged. She still had the same formal shoes and the beret as well. In short, she looked remarkably like her witch form, even invoking its name when transforming in typical Mami fashion. Homura recovered from her shock fairly quickly; the similarities that Kyubey mentioned between witch and magical girl had obviously carried to their costumes as well, although in fairness she probably wasn't lying to Homura by not telling her. Probably.

"Ta da!" Mami curtsied a little. Homura almost expected her muskets to slide out from underneath her skirt, but nothing happened. They probably wouldn't have fit under the tiny little thing anyways: there was one "gun" already, and its length was completely unobscured by the blue fabric. "Mami-san's here to save the day! … Except I haven't really done much fighting, heh." She giggled a little at her own silliness. "I've got my ribbons," and here she procured one from a portal opening slightly behind her arm, "and I think I might be able to turn them into guns of some sort with a little focus and power, but apart from that I can't really do much against most daemons. Well, they're pretty rare around here though, and we have a pretty large coven, so I doubt we'll have any problems." A group of witches, huh. Appropriate enough.

She asked anyways, just to make sure. "A coven? Like, a bunch of magical girls?"

Mami nodded. "There are like a thousand magical girls in Mitakihara, so we can cover most of it before any daemons spawn." A thousand! No wonder she had ran into one just by stumbling around the city.

"One thousand, one hundred and forty three contractees to be precise." Kyubey was uselessly helpful as she normally was. "Forty four if we consider you a magical girl and not a unique type of magical being."

"Oh, that reminds me. What do you need me for again? It's not like I'm unhappy to meet new people, but if Homura-san needs me I should help her first."

"She was contracted under an untested model that was intended to be more effective at daemon hunting. Akemi-san operates in the opposite direction of the normal magical girl, using magical power and creating despair as a byproduct rather than the inverse. Theoretically, she should be able to be cleansed like an ordinary human would be."

"Soooo, you want us to fuck?" After just a day, Homura had learned not to be fazed by people's casual attitudes towards sex, but it still was slightly unnerving. "I mean, you could have told me just that, you know."

"I am well aware of your species's sexual proclivity," Kyubey said. "However, I did not want you to come to any mistaken conclusions regarding Akemi-san's emotional makeup." The Incubator didn't benefit from it, after all.

"Mkay! Alright then, let's get to it." Mami gestured at Homura, who dispelled the outdated transformation. "I gotta say, you look a lot better in our school uniform. With enough mental training and power, we can probably give your junk a lot more breathing room. I got rid of that stupid tag thing myself, you know." She didn't, but she got the gist anyways. Mami thrust her chest outwards, prominently displaying those huge tits, the blue skirt serving to push them up a little. "Here you go! You were checking the girls out, weren't you? Now you get the full, hands-on Mami experience."

Homura stood up and quickly stripped down, penis and breasts freed from their constraints and bouncing around. She then accepted the witchy magical girl's offer, sliding her dick into the massive cleavage. The tip of her penis just barely poked out of her tits, the boobs swallowing her whole length. Mami couldn't even lick it if she tried, which was quite impressive given Homura's length. Of course, she didn't need really need to: the abundance of flesh meant that the rod was surrounded on all sides by it, making the titfuck seem like she was actually fucking a hole. The sensation was a lot softer than a pussy or an asshole though, and she could sink her cock into the sides with ease. The blonde smiled up at Homura, moving her chest up and down slowly, stimulating her further. "Hey, Kyubey-chan. Do you want in as well?" she asked, eyes still looking at Homura's face slackening in pleasure as she stimulated the sensitive cock buried within her bosom.

"I do not feel any particular desire to engage in recreational intercourse."

Mami pouted cutely even as she continued pumping Homura's dick with her boobs, Homura letting out little moans as she did. "Come on, Kyubey. I'm a magical girl, I need to serve others to survive." She said "serve" with a little lilt to it, making it clear what she meant by the word.

"Unlike humans, I do not produce despair naturally, so copulation would not enable you to gather energy." Kyubey still hadn't figured out figurative language, it seemed.

"I know that… Ah, fine, you can keep on being a voyeur over there like some kind of shut-in." Mami gave up on convincing the albino alien to join in, and returned her attention to Homura's penis. She squeezed her breasts together with her hands, further enveloping Homura in soft flesh. Precum oozed from the slit, greasing the soft soft flesh and enabling Mami to speed up her motion. Her face flushed from both the exertion and her arousal.

Homura started moving in time with Mami, thrusting her hips and pushing her dick deeper into her chest. Her hands moved to her own tits, massaging the overall mass while pinching the nipples with a pair of fingers each. The two of them were now both leaking milk, Homura making little dribbles compared to Mami's rivulets. The pair of breasts she was fucking began shaking back and forth with the **** of the thrusts, their owner crying out from the stimulation. Homura wasn't much more coherent, panting with mouth wide open and tongue lolling to the side. They bounced back and forth hypnotically, jiggling and bouncing in tandem with every single thrust. The wonderful softness all around her was moving in some of the most amazing ways, enveloping both of her heads in warm soft fuzziness.

Soon enough, she came with a start with one last buck of her hips, splattering the older magical girl with yet another large load. It splashed against her collarbone and neck, a couple of blobs making it to her open mouth but most of it eventually landing on her breasts. This time, though, she felt a sensation of weight leaving her shoulders. Looking at the cum-soaked Mami again, she saw a couple tendrils of black corruption swirling around before being absorbed into her skin. Homura held up her Soul Gem, examining it in the post-orgasm haze. There were no traces of black anywhere, leaving it a deep pure color.

Mami sighed contently, presumably enjoying the warmth on her chest. "Ahh, that was nice." She scooped up a handful of cum between the tops of her boobs, feeding it into her mouth.

"So, the procedure was successful." Kyubey chimed in by stating the obvious.

"Mmmhmm." She swallowed the load after savoring its taste a little. "Although that pretty much topped me off despair-wise. That was a lot..."

"Uhhh, how much, exactly?"

"Like, I don't need to do anything for the next day or so."

"I haven't really done that much though..." She had transformed a couple of times and jumped around a little, and that was it.

"It would appear that Akemi-san has a vastly greater capacity for grief than the average magical girl, judging from the relative cleanliness of her gem before and after." Kyubey said.

"She's got a vastly greater capacity for a couple of other things, too." Mami replied, still trying to fish out all the cum. "I don't know if I can eat all this..."

"Akemi-san is only slightly greater than the mean relative to total average production."

"Oh, you hush for a little bit." She leaned over and stuffed the Incubator's mouth with another one of the gobs of semen, silencing her. A few seconds later, she returned her hand to her chest, licked clean. "I was complimenting the girl, you know?"

"Uh, thanks, I guess..." She didn't need to fake the awkwardness she felt this time.

"No, thank you! You gave me a wonderful appetizer. Here, do you want some?" She proffered another handful to Homura. She lapped at her spunk like a cat, enjoying the delicious musk. She had probably eaten around the same amount of cum as solid food today… "Ah, speaking of appetizers, do you want to stick around for dinner, Homura-san?" Actually, she was pretty hungry. Ignoring her own needs when they were unessential was a bad habit of Homura's, so things like eating sometimes slipped her mind.

"Uh, if you don't mind, then I'd love to."

"Alright, sure. I'll whip something up for us real quick. Ah, Kyubey, if you have to go that's fine by me, I know you don't have to eat." The Incubator looked perfectly happy to remain seated though, given that Homura was probably the most interesting thing in the whole city right now to her. She went back to the kitchen, humming a tune as she did so.

Might as well use this time to "talk" mentally with Kyubey for more details, she supposed. As long as her questions were thorough, she could trust her information to be mostly accurate. The albino futanari explained to her about some of the more intricate details of the system and how it fit into human society. Most magical girls were organized into covens, a sort of informal union. Some girls struck it out on their own, so it wasn't strictly speaking necessary, but it helped a lot. As an organization, they were responsible for coordinating magical girl quotas for each given area, but didn't really exert that much power otherwise. Many of the benefits were in socializing with peers who had shared experiences, granting increased access to things like job opportunities, places to stay, and such. They also very infrequently fought off daemon spawns, which was typically a fairly large affair requiring much planning and effort on the part of the coven. Her general impression was that these witch-type magical girls were weaker in combat than their predecessors. Kyubey agreed with this conclusion, saying that if her story was true Homura could potentially match the entire country's magical girl population (roughly seventy five thousand) in daemon-hunting.

As for individual girls, they had to devote a large portion of time to collect despair, as the payoff for any one person wasn't that great. Many magical girls therefore involved themselves in careers where sex with many people was to be expected. Kyubey named entry-level office and factory work as common choices, where apparently the workers had rotations where they would serve as communal sluts in turn. Homura thought that she might be even more distracted with a girl riding her dick instead of it just sitting there throbbing, but it must be working somehow, so she accepted it. In addition, magical girls also tended to flock to places where despair was most concentrated, so things like hospitals, homeless shelters, and charity work also attracted many. The trend of random fucking in the subway stations that Madoka and Hitomi had discussed was apparently also a magical girl innovation, one that had caught on as a more widespread phenomenon and was now a popular pastime among people with too much free time. The large time sink did mean that rich magical girls were fairly rare outside of already wealthy contractees, people who had wished for wealth, success, or similar things, or people who were innately talented at some profitable measure.

In exchange, Homura detailed some of the more unique magical powers and developments she had encountered and their ramifications on how magic worked, albeit telepathically as to avoid eavesdropping from their blond host. She tried to keep at least one trump card in her own ability to stop time as well as restart timelines, but in other respects was somewhat thorough.

By the time they had gotten through all that, Mami had finished cooking. She brought out a relatively plain meal, rice with meat and vegetables on the side, and they ate together, Mami making small talk and Homura nodding politely while speaking just enough to try and avoid awkwardness. The cake for dessert, however, was more impressive. It was a plain vanilla cake, but it was incredibly delicious, and Homura ate quite a bit of it.

Mami put down her teacup, smiling at Homura as she ate another slice,"I'm glad you liked it. I made it myself, see, so I was kind of worried that it would turned out bad, but it looks like it was ok. Do I taste as good baked as I do fresh from the tap, though?" She propped up her giant breasts again, smiling.

"Yeah, it's really good." Homura wasn't even embarrassed at the idea anymore. Besides, it was in fact delicious, no matter where the dairy products came from. "Thanks."

They put the dishes in Mami's small sink when they were done. Homura offered to help out of obligation, but Mami would have none of that. "I'll be fine, Homura-san. You just get home, it's pretty late. I'll see you in school tomorrow!" With that, the dark haired magical girl bowed and then took her leave alongside the Incubator, the unlikely duo considering what to do next.