A sex relay.

"So, how does this work again?" Homura asked the pink-haired girl next to her. The two of them had paired up, much to the pleasure of Madoka's matchmaker friends, and they were standing in the third lane of the track wearing only the socks and running shoes that the teacher had provided.

"It's honestly pretty simple, I think Kaneda-sensei was, you know, just trying to make it sound cool and dramatic and stuff. She's a big fan of sports shows." Madoka shrugged nonchalantly. "Anyways, all you really have to do is carry me on your dick for half of a lap, then I'll do the same for you for the rest. Oh, and we need to get off right before the match starts, so we're all on an even playing field as far as that goes."

"And what was the part about the 'hot-blooded youth' about?"

"Well, it is a common theme in books and shows and stuff." Homura stared blankly at Madoka, not really getting the significance behind it. "…It's just a sex joke, you know? How we're horny all the time and all that. Just, it's used so often that it's kind of not really a joke anymore? It's like crossed back into unironic use or something like that, I don't know." Madoka pursed her lips, evidently unpleased with her explanation

Homura accepted it anyways, chalking it up to another one of those weird things that she'd have to get used to. "Ok, so that's irrelevant."

"Yeah, basically. Here, you'll be the runner the first half, and I'll do the second one." Homura nodded along, feeling a little out of her depth. She was very much used to carrying Madoka and running, but sex never really figured into the equation.

"Alright! Orgasm phase begins now! You girls have 3 minutes to prepare for the race! Don't get carried away, though!" Kaneda yelled, hands crossed below her breasts and propping them up. Homura turned around to look at Madoka, but she had already went off to the plastic box of sex toys at the inner end of the track. The pink-haired girl quickly grabbed a long blue onahole, then scurried back to their lane.

Homura blinked as Madoka handed her the fleshlight, expecting to have to go pick up one herself. "Oh, uh, thank you. Wait, don't we need another one?"

Madoka shook her head. "Nah, we'll just share this one. Here, put your dick up to mine." She gestured to her groin, the long length already soaked in precum in anticipation. Homura pressed her own cock up to Madoka's, letting the two dripping penis throb in unison.

After a moment of comparing the sizes of the onahole and their penises, Homura pointed out an apparent issue with her plan. "Umm… will both of them really fit?" The sex toy barely looked like it could fit her own dick, let alone another.

"Don't worry, Homura, these can stretch a lot. Just makes it warmer and tighter, which makes it even better." Homura looked back at the blue plastic mold in her hand, then shrugged and accepted Madoka's explanation.

She spread apart the artificial folds, then shoved their joined tips into the thing, sliding it all the way down with surprising ease. Just as Madoka had said, it was very tight, but in a good way. Their penises were actively being pushed towards each other by the constraining rubbery plastic, pulsating in time with one another, and wet fluid ran down their shafts. Homura couldn't savor the feeling very long, because Madoka grabbed onto the onahole with quite some ****. Homura let go as Madoka started vigorously pumping, clearly intent solely on cumming. Madoka pressed the side of her body against Homura's, mashing her right breast into Homura's left one. The magical girl gasped at the forceful movement, the plastic material pressing into Homura's dick on the one side and Madoka pressing on the other.

Not satisfied, Madoka started thrusting with her hips as well, adding another layer of sensations. Her cock scraped pleasantly against Homura's with each movement, half gliding and half rubbing. Homura simply stood there limply, riding out the stimulation and letting Madoka take full control. The pink haired girl sensed this, and redoubled her efforts, gripping down on their dicks and making huge, flourishing strokes. Up and down their thick shafts she went, the fleshlight in her grip hitting all the way home and exposing their heads to the cool April air. Homura opened her mouth to scream something - I'm cumming!, fuck!, Madoka! - but all that came out was an incoherent cry of pleasure. One final yank, and Homura ejaculated forcefully, spraying cum out of the other end like a perverted water pistol. The sensation triggered Madoka's orgasm as well, her cock quavering with the sensations of release and shooting its own jet of sticky spunk. Their combined loads got all over the track, of course, creating several large puddles. Homura slumped backwards, panting a little, but soon recovered.

"Ahhhh…" Madoka let out a small sigh of pleasure, stretching her arms a little. She then moved into a stretching routine, evidently preparing for the race to come.

Homura was staring at their combined … output, which must have been around a quart or so. "Should we really have been doing this on the track?" she asked.

"Huh?" Madoka asked, but then she followed Homura's eyes and understood. "Oh. Well, the track is designed for this kind of thing, so it's pretty, uh, absorbent." The two of them were quiet for a bit, the gap filled by the noises of the other teams getting off.

Their silence was broken by the shrill tweet of the gym teacher's whistle, the signal that the race would start soon. Homura and Madoka walked up to their lane's white line. The pink-haired girl turned to face Homura, spreading her arms out wide in preparation. "Here, let's -" Homura preempted her, scooping Madoka into her arms and lifting her off the ground in a single action. "Oof! Wow, that was quick." Recovering from her apparent shock, Madoka slung her outstretched arms around Homura's back, grabbing on tightly with her legs. "Heh, well, I guess you have practice carrying me, don't you?" Her voice trailed off a little at the end, and Homura thought she detected a little tinge of unease behind the jocular tone.

"You could say that, yes." Homura said as she carried Madoka to the starting line. While Homura shook herself down, Madoka aligned her body just right, then quickly slid herself down onto the penis below her. She let out a little gasp as it went all the way in, then shifted around a little to give her a better perch on the other girl's body. Homura started a little bit at the sudden sensation, her cock very suddenly surrounded by pussy flesh, but was able to maintain her focus.

When Kaneda had determined that they were all ready, she nodded to herself, then called out "Ready! Set! Go!" The race began, although instead of the flurry of action that characterized the "dildo dash" this relay started off at more of a stroll. It would appear their frankly superhuman strength and stamina when it came to sex didn't carry over to other activities. Homura stepped off, walking forward with relatively restrained steps. She probably could have gone much faster, or even ran, but she still needed to fit in. The downside to this, of course, was that she'd have to go much longer with Madoka wrapped around her. Each step caused her to bounce oh-so-pleasantly, rubbing along her penis and also making her breasts jiggle freely right in front of her as well.

By the time they had finished the first curve, Homura was panting heavily. Not from the frankly minimal exertion, but from the constant stimulation of warm pussy surrounding her cock. All of her instincts were telling her to stop moving and just fuck the brains out of the warm body right on top of her. Each step had just enough pleasure to set off all the "oh, we're fucking now" sensors and to have her craving more, but it was just awkward and interrupted enough so she wouldn't actually make her cum. Homura was actually faring better than most of the "runners"; lane 3's carried girl had just pushed her partner to the ground in front of them, intent on actual sex. Homura passed them soon enough, so she was able to somewhat get them out of her head, now "only" distracted by the pink-haired girl riding her cock. It wasn't really a race against the others, per se, it was a race against their own libidos.

Halfway through the third quarter of the race, Homura couldn't take the mere teasing of her cock anymore, and abruptly stopped her previous even strides. Madoka looked up at her, eyes unfocused from the same stimulation Homura was feeling. "D-don't stop." she **** out, although Homura didn't know whether she was referring to the race or the sex. Homura didn't respond to that, instead grabbing Madoka and forcefully moving her along her erect penis. The pink-haired girl shuddered as she was manhandled, making little noises as Homura roughly fucked her, penis easily sliding in all of the way. Soon enough, the pent up Homura let out a warm jet of cum into Madoka's waiting pussy, the girl redoubling her own efforts to get herself off but apparently not able to. Now relieved after her short pit stop, Homura kept on moving, murmuring a quiet "Sorry" into the spasming Madoka's ear. Hopefully, she would be able to get off in this last length.

Sure enough, Madoka trembled around her as Homura made it through the home stretch and cried out violently. It took her a little bit to recover, but she eventually was able to lift herself up off of Homura's dick, leaking quite a bit of juices and cum as she did so. She stretched out her legs and arms before straightening out again. Homura pressed forwards, spreading her exposed vagina for Madoka, who slammed her dick in all the way and used her increased "leverage" to lift Homura off the ground. She hugged Madoka tightly, clinging on as she started to walk forwards.

On the other end of things, sex was just as awkward. Homura was constantly jostling around from the movement of Madoka's legs, but she wasn't able to really move up and down like she wanted to. There was a giant cock inside of her, but it wasn't really doing any fucking, and Homura desperately needed it at this point. She pressed her body against Madoka's, rubbing her breasts up and down her body, bouncing them into Madoka's chest insistently. Homura moaned helplessly, wholly dependent on her carrier for pleasure.

Madoka finished the curve ahead of all of their competitors; it would appear that Homura was actually less distracted than they were. Lane three, for example, were still back in their first lap, eagerly thrusting away at each other in that weird mutual fucking position. Looking at their panting, flushed faces only made her mounting arousal worse, though, so she resumed staring at Madoka's neck and collarbone. She closed her eyes, trying to ride the maddeningly pleasurable sensations out.

Homura's eyes were forcibly opened when Madoka suddenly thrusted up, forcing out a large groan. She thought it might have been a one time thing, but then she was raised, then slammed down again. It seemed that Madoka was doing some weird movement to work some more actual sex into it, at the cost of speed. It looked like it was paying off, though, as she came powerfully into Homura's waiting pussy with the next motion. Homura was also feeling the effects of actually getting fucked after so long of just the dick throbbing inside her, and felt herself coming close.

They had made it to the final stretch, and were roughly 80 meters out. Madoka picked up her pace, trying to just get it over with. Homura gasped as the rhythmic thrusting stopped, robbed of her orgasm on the very edge. She tried to jostle around and finish herself off, but almost threw Madoka off her balance, so she gave up and trusted that she'd cum eventually. Instead, she constricted her pussy, trying to use another one of Madoka's orgasms to get herself off.

The pink-haired girl broke out into an almost-run, making a couple of long strides to finish up, and ramming Homura enough that she came, eyes rolling back and cunt violently contracting. After so long perched on the edge, Homura felt that her orgasm had lifted a great weight off of her, and she basked in the pleasure even as she helped Madoka let her off of her dick. Madoka smiled at her tiredly but happily, looking pleased at their performance. "Wow, Homura, you're pretty good at this, aren't you? You walk really fast!"

Homura made a small smile in return. "Well, thanks, I guess," she said somewhat bashfully. They sat down on the grass together, waiting for the rest of the race to finish.

After the race class was over. Homura and Madoka were walking to the front gates, having changed and packed. They were walking quietly together, just kind of quietly enjoying each other's companies, when a voice called out "Hey, Homura-chan!" It was Mami, who had noticed the two of them walking together and was waving.

"Oh, who's this?" Madoka asked Homura, looking … there was something inscrutable for a moment, but then it resolved to happiness. "Did you manage to make another friend, Homura-chan?"

"Oh, I'm sorry, I didn't introduce myself! I'm Tomoe Mami." She made a little curtsy, although the motion was kind of lacking a skirt. "I met Homura when, well, she asked me for help, you know. We have the same job, actually."

Madoka looked confused for a second at that, tilting her head slightly. Homura, with a look around to determine it was relatively secluded, decided to help her out. She summoned her soul gem to her hand, displaying it in her palm to the pink-haired girl, and her eyes widened as she connected the dots.

Mami's eyebrows furrowed in realization. "She knows, doesn't she. Is she a potential recruit or something?"

"Umm, yeah, I think." Madoka said. "I'm Kaname Madoka, and, well, Kyubey asked me to become a magical girl, yeah. You're one too?"

"She was the target of that miasma I defeated." Homura clarified.

"I see..." Mami said. "She'd better come with us, then."

"Us?"

"Where?"

"Yeah. Homura-chan, of course I'd come with you! I'm not gonna leave my cute little junior to venture out into the city herself, you know? And to Madoka-san, we're going to see the coven, meet up with some veterans and see what we can do about it."

"Uh..." Madoka looked at Homura, who nodded in - confirmation? Reassurance? She didn't know what Madoka was thinking. She nodded, though, and apparently that was enough. Madoka looked back towards Mami and said, "Ok. Uh, what would I be doing here?"

"Probably just explaining your side of the whole ordeal, tell them what you experienced." Madoka nodded at that, thoughtful. She didn't look too thrilled about it, but Homura saw the resolve in her eyes.

"Well, if you're ready to come with, Madoka-san, all we need to do is figure out how to get there. It's at five, right Homura-chan?" Homura nodded. "Alright, then. Now, there are a couple of ways we can get there..."