Tenko really really REALLy wanted to use her Ultimate Lab! Her runs just won't cut it anymore, she NEEDS physical combat so her skills would stay sharp! Unfortunately basically everyone else wasn't suitable partners or weren't available, leaving a...bleh, a male.

Wait, you didn't want to do it? Well no biggie, she'll just have to make a small bet that she knows she'll win. After all you're just some track runner, no way you were gonna beat her! A male to add on, easy peasy! This surely wouldn't turn out sexual in any way!

...Right?

"Put your hands up, male!" Tenko shouted at you, battle position ready and looking to box while you stood across from her shaking a bit

"But I don't want to!"

"Just do it if you're not a coward-"

"I AM NOW! Matter of fact, what kind of person walks up to a person and asks them if they wanna fight?! Battle junkie!" You exclaimed at her with a point. "I'm not even a fighter to begin with! Track racing is not a fighting ability!"

"And that's why you're perfect for training! I can easily test my skills! Besides, it'd be pretty fun to beat on you." She said, and you felt a vein pop from your head as your point became more exaggerated

"MISANDRY! MISANDRY ALTERT! YOU COULD'VE CHOSEN ANY OTHER GIRL TO FIGHT AND YOU CHOSE ME?!"

"Well I wouldn't want to beat them up like that! Plus none of them could handle it-"

"MAKI?!"

"...She kind of scares me..." She admitted, sheepishly twiddling her index fingers. You meanwhile just looked at her.

"Yeah, I'm out." You said, turning to walk out. You liked the girl even despite her quirks, but you were not about to get your ass beat cartoonishly or run away like a bitch. However, the greenish haired girl extended her hand out towards you, looking troubled for a second before smirking.

"Well how about this? If I win, you get to be my servant for the day!" She told you, you doing a double take in response

"And how would that make me wanna fight you?!" You exclaimed at her, the girl looking shocked

"Don't you males like it when you get to serve women?!"

"Those are masochists!"

"Huh?!"

"I'm not fighting you! End of story! Now if you excuse me, I promised Angie I'd do a blood ritual with her for whatever reason-"

"Okay!" She interrupted. She really wanted a training partner right now, and really wanted to use her Ultimate Lab that they were currently in; but unfortunately you were her best option right now!

...That's it!

"W-Well then, if you win...I do whatever you wish for the next two hours!"

*Swoosh*

"Get ready to lose." You said, somehow wearing a whole cape as you walked up to her with an oh so serious look on your face. Meanwhile Tenko just smirked. Classic degenerate male behavior. Well, it wasn't like she was going to lose. AND she'd be getting a servant for the day! Easy win!

Oh you were close now. Time to flip you a few times and be on her way-

Ten Minutes Later:

*PLAP* *PLAP* *PLAP* *PLAP* *PLAP* *PLAP* *PLAP* *PLAP* *PLAP* *PLAP* *PLAP* *PLAP* *PLAP*

"Get pregnant get pregnant get pregnant get pregnant get pregnant get pregnant get pregnant get p-"

"W-W-Wa...Wait-Sl...Slow d-d-d...down...!"

She couldn't believe this! In the span of two minutes she had not only lost, but would have her first time snatched up so quick she didn't register it until she felt something repeatedly touch and enter what she could only assume to be her womb. Now here she was, her hair grabbed and pulled from behind while she was bent over on her feet and getting thrusted into by a...a...a...penis!

What's worse...you were moving fast! Like, really REALLY fast! She guessed it should've been expected because of your talent but dear God was it really showing here! Not helped at all by the multitude of times you were telling her to "get pregnant." Bah! Who did you think she was! She wasn't about to let some degenerate male just have their way with her, even despite the fact this was the result of her own idea! No, she was going to stop this, or at the very least top you! Get ready for Tenko's ultimate comeback!

Yeah the epic action was a lot less epic in real life. She just weakly raised her arms a few inches before they sank back down.

"Damn...Damn damn damn damn damn!" You thought. This was better than you were expecting! You had always been attracted to Tenko, and never dreamed of this actually happening; but it actually was! And by GOD it was damn near everything you could've dreamt of! She was tighter than a MF too! Though you guess it was to be expected, she was a virgin, and you barely had any experience either. Your best experience was that one time with Miu after she joked about how fast you could be in bed.

Now, how fast was 3 hours ago? He couldn't ask her with all that incoherentness after the fact.

*SLAP!*

"AH...!" Tenko gasped out, feeling her ass stinging and barely managing to look back to see you having given her red a smack that left the skin a bit red, not that she could see but you could. You just wanted wanted to see her ass jiggle more. It was already bouncing in wondrous succession atop your member each time you thrusted back and forth, presented gracefully thanks to you flipping her skirt up and moving her panties down, getting that clear view of her round behind.

"S-S...Slow do...wn!" The martial artist called out, looking at you with a look of annoyance that honestly just turned you on more; even more so since she was blushing a bit. "I-Isn't this too...too...too fast! Th-This is...very...uncomfortable too...!"

You barley understood her because of her pants and attempts of hiding her pleasure, but she was right. This position was pretty weird. You were losing energy fast and this was no doubt not too comfortable to Tenko...

...So you solved this and in the next minute you had the girl on the ground, ass raised up and you pounding into her pussy from above. Your fellow Ultimate's face was squished onto the floor a bit, arms flat before her ass but ass continuously bouncing and jiggling on your crotch area that repeatedly slammed into it with a mighty need to breed it for all its worth. Yeah, she must've done a lot of squats, cause ain't no WAY her ass felt this nice!

Welp, no use in dwelling on questions that didn't need to be solved. You just continued trusting away like there was no tomorrow and kept groaning throughout. Tenko herself seemed to be enjoying herself too. Her little noises of pleasure were being let out more frequently, her pussy was leaking in arousal, AND she wasn't looking back at you like she wanted your head! She was even moving her rear to match your thrusts somewhat. Now that was getting more groans and even some grunts out of you at feeling the moving tightness that was moving along your member, making it to the point you actually stopped moving entirely and just let the green haired girl work on you.

The aikido master released a shaky smile at seeing you completely freeze up, desperately ignoring how nice you dick felt moving and stretching her out from the inside out. This in a way was a sort of training, and she was going to prove herself superior. Shaky arms would raise her up until she was on all fours, the girl bouncing her body back and forth along your dick, making it go deep inside of her each time she slammed her ass back into your crotch area and seeing mini-twitches across your body.

Releasing a small breathy laugh, she gave you a look of mocking as she continued butting her behind against you. Opening her mouth slightly, her movements backwards began to become more and more aggressive, her determination to not let a mere male outdo her overpowering any other thought in her mind. Even then, she couldn't help but talk crazy.

"What's wrong...degenerate...?! Can't handle me...?!" She taunted. She stopped moving all together with those words, confusing you for a moment before she damn near threw her ass backwards and slammed itself onto your dick.

*PLAP!*

And again.

*PLAP!*

And again.

*PLAP!*

And again.

"Heh, this is my win." She thought to herself, satisfied with her performance. Her core seemed to curl in a bit though...something was building up. Don't tell her she was actually enjoying this-

"Squish~*

Tenko's eyes widened as she looked back at you, your hands having gripped her ass so tightly it was actually seeping between the fingers. Her pussy was practically flooding at this point, which you couldn't blame her, you were leaking precum by the second, not to mention you were feeling your end coming. Time to take back control.

"Alright...You had your fun..." You said, slowly sliding your then barely inside member and pushing until it was fully inside, earning a light shudder from the martial artist. "My turn..."

It was like your earlier energy came back, and once again you were back to pounding relentlessly into the girl you knew could take your maximum output. Tenko felt compelled to rush her hands to her mouth in order to surprise a gasp, but kept her hands down in order to not fall on her face. No, she stayed up and tried keeping up with your speed back bouncing herself back everything you moved forward, but was now losing in this department and unlike earlier was freely letting the pants and pleasured groans leave her mouth.

Sweat was beginning to form on you both, minutes nearing around twenty finally catching up to you both, especially as you two felt your ends coming. Tenko herself didn't fully understand what this was, being inexperienced and all, but you...you understood the assignment. And with a mighty flip you put Tenko on her back, getting her to look up surprised at you from the sudden action, so much so that she blinked in response.

"H-Hey! What are you-"

You interrupted her by shoving your dick into her pussy once again, getting the girl to throw her head back and grit her teeth; eyes wide and some drool leaking from her mouth. You were now in what many would dub the 'mating press' position, which was an accurate term as you felt like mating and then breeding right at this current moment. Slamming your hands to the sides of Tenko's head, you breathed in before delivering jackhammer type thrusts into the girl from again.

Each one of your thrusts sent ripples through the girl's ass, something you couldn't see but wished you could; especially since her chest was being contained by her top at the moment in its fullest. Oh well, you could see Tenko's face at least, and she looked like she was having the time of her life. She was unable to contain her nosies of pleasure anymore, letting it loose while not even looking at you, her head still thrown back as a result of your previous impalement. Hmm...you wondered...

"GAH...!" She exclaimed out, looking down to see you having taken the opportunity to move down and take a bite at her neck like some kind of vampire. She felt her body shiver, your thrusts stopping to just make sure he went as deep into her as possible, both of your bodies shivering with he action. Even worse, she felt herself leg locking you in place!

"Y-You degenerate..." She began, barely understanding why she was about to do what she was about to. "I-if you want to put your mouth on something..."

You looked up at her confused for a moment before watching as she pulled you up by your hands kissed you. On the lips. Pigs were about to start flying, and honestly you couldn't care. You immediately started thrusting once again as you both began kissing each other. However...you both were bad at it, and the "kiss" could barely even be called one, and you two just wound you licking and slurping on each others tongues while you pounded into her. Yet you didn't get how Tenko was even winning that exchange!

"I-I can't..."

Those words were echoed in both of your minds repeatedly, getting faster and faster as time went on as your own thrusts got quicker; all while the green eyed girl said "screw it" and grabbed the back of your head and slammed both of your lips together, using her tongue to explore every inch of your mouth and essentially dominating you in the top battle as you dominated the bottom one. Then eventually...it happened...

"CUMMING!"

"I-I CAN'T ANYMORE...!"

With that cry you both came, you exiting the kiss and burying your head in Tenko's neck whilst she threw her head back and cried out to the heavens. Her leg lock kept you firmly in place, to the point even if you wanted to you never would've had the ability to escape her. This resulted in a creampie that filled her womb with so much sperm it was leaking out of her quite a bit, combined with her own juiced from her own orgasm. The amount of spurts you let loose coated her insides white, while she wettened your crotch area, and pants, a whole bunch with her squirts.

You both laid on the floor of the dojo for quite some time, heavy breaths leaving the two of you. Eventually you rolled off of the girl, chest heaving and a light flush on your face, not even able to actually speak. You were out of energy, and didn't think you would be able to move for a while. But...That was fun. Guess you'd just lay here and-

"No..."

Your heart went cold at that, wincing slightly when you felt some weight practically jump atop of you and on your dick. It instantly got erect as it felt the pussy laying upon it, you looking up to see Tenko straddling you and looking down at you with a glare of both annoyance and lust that definitely wasn't scary, or arousing.

"You...You released your dirty man-sperm inside of me! You...You d-d-d-dominated me, like some...some...aarrgh! No matter! I'll repay you back tenfold!" She exclaimed at you, making you blink as a blue shade came to your face

You accidentally created a monster...one already bouncing on you for the ride of a life time. You hoped your dick survived...

The Next Day:

"Hey Tenko...where were you yesterday?" One Himiko asked. She decided to try and befriend the martial artist recently, and as such found herself spending a good amount of time with the girl; so much so she considered her a good friend despite her...quirks. But she said she was going to help her yesterday with some magic practice after she trained but she never saw her. That was weird, but she slept on it and forgot about it until she woke up.

"Are you alright?" She then asked as she got a closer look at her friend across the table from her.

Tenko was looking at her lap with a blush on her face, barley even seen by the way her eyes were shadowed. What's weirder is that she looked to have weird marks on her neck...some purple, some looking like...bites? Matter of fact when she walked in the cafeteria she was with you...and when you stepped to sit with Miu and Gonta you looked extremely drained and robbed of over a decades with of life...

"I'm fine. Just was a bit sick..." The green haired girl told her, the self proclaimed mage staring at her before shrugging

Meh, she'll probably tell her later. She was too lazy to ask for further details. Though, she did wonder why Miu was laughing in the background...probably not important.

Surprised there isn't more "instant loss" Tenko smuts or even rule34...meh.

Probably will do a longer Tenko lemon in the future, this was just built off of a joke basically as I said. If you wanna see that let me know, it could be fun.

Anyways I hope you all enjoyed! Have a nice day and I will see you all in the next one! Take care everyone!

PEACE!