"..." I spread Zenith’s legs, positioning myself between them while staying on my knees — after all, I can’t sit on Zenith’s tail, it’s extremely uncomfortable.
"J-Just get on with it!! Stop trying to frustrate me!" she says as I press just the tip against her pussy.
"Relax, I’m just trying to find the best angle." I start to push into her, listening to her soft moans until I’ve got about half of it inside, which makes her bite her lips.
"I-I don’t think I’ll ever get used to your size." She cracks a little joke even though she’s weakly moving her hips, trying to get me to slide in deeper.
"I’ll make you get used to it." I shove it all in with a rougher thrust, making her arch and gasp as I lean forward, getting close to her face and stealing a kiss.
Her hands move to embrace me as I start moving my hips, giving her rhythmic thrusts — the sensation is so good, as if we were made for each other, a perfect fit.
"..." She slides her tongue into my mouth while we share a more intense kiss. I rub my cock inside her, making her moan from the friction and the thrusts that shift into a more irregular, unpredictable rhythm.
I move my hands to grab her breasts, squeezing them while I gently pinch her nipples. Zenith moves her hips, trying to keep a rhythm with my thrusts as the sound of skin slapping against skin echoes through the room.
"Haaa... y-you’ve gotten w-way wilder than last time. Are you that pent up?" She cracks a joke about the situation while I grab her legs, making her sit on my thighs as her tail moves behind her, allowing me to sit down.
"I’m just taking advantage of a rare opportunity." Any sexual interaction is only with Zenith, and I can’t even give myself pleasure alone — if I do, she feels it. So I’ve literally gone months without anything. Obviously, I get pent up.
"Sorry for being so restrictive, but I really do get uncomfortable feeling your sensations. At least when it’s like this, I only feel my own." She starts moving her hips up and down as she speaks.
I grip her ass, squeezing it and helping her move up and down. The weight isn’t exactly comfortable — after all, it’s a little over half a ton on top of my thighs — but I’m glad she trusts my strength to lift her while we have sex.
"Nghhh..." She hugs me tightly as she comes, and I move more gently, giving her time to recover.
"Y-You know, Nadir, your stamina is absurd... if I didn’t know you take forever to come, I’d think I’m bad at this."
"Don’t worry, it’s not your fault." The combination of physical training, the chip, her weight on my dick, and the fact that I have to go all out so I don’t get crushed makes it harder for me to come — and the shot ends up much stronger and more compressed.
Of course, I could fix that by removing all of Zenith’s prosthetics, but that would be awful. It would mean taking off her legs, arms, and tail. And when they’re removed, even though she gets absurdly light, she gets really depressed. It’s like stripping away her freedom. I’d rather deal with the weight than with her being depressed.
"Don’t give me that sad look. I know what you’re thinking... it kind of sucks, but since I can’t get my real limbs back, it doesn’t really matter. I’m really grateful you still treat me the same as always."
"I’d hate it way more if you treated me differently." She gives me a big smile — a pretty rare occurrence — so I smile back.
"You get way more honest during sex. We should do this more often, right?"
"Don’t push it." She goes back to making her usual annoyed face, rolling her eyes, but she keeps moving her hips up and down.
"Haa..." She stops moving and starts just rubbing herself against my groin, giving me a slow but steady pleasure — almost like a tease.
"E-Even though it feels good... y-you’re so hard..." She murmurs, softly biting my shoulder while hugging me as if I were her safe harbor. Honestly, sex with her is good, but the fact that it’s a stamina test takes away some of the pleasure, allowing me to focus more on what she’s feeling in those moments.
For Zenith, even though she complains and says it’s just for the energy, this is also a more peaceful moment — one where she doesn’t have to be constantly on alert for an enemy or a mission.
"Waah!!?" I push her down onto the bed, hugging her as I start thrusting into her more wildly. She moans, gasping as the bed shakes and scrapes against the floor. Her tail disconnects to prevent her from accidentally hurting me or herself because of the momentary loss of control.
"I’m gonna come, Zenith," I tell her, sliding my hands under her legs and keeping them spread wide while I pin her against the bed.
"Y-You can come." She can barely speak, lost in pleasure, as I give one last thrust inside her and start coming. She lets out a sensitive little cry as she comes too, her pussy contracting and squeezing me tight while I glance at a rustic, non-digital wall clock.
’Forty minutes... that’s a record.’ It usually takes me longer to come. She’s gotten better too, even if she doesn’t say anything.
"F-Fuck... t-that hurts, you know? I-It’s like getting shot in the uterus with compressed air," she gasps, complaining.
"I’m sorry about that, but you know I can’t control it." If I didn’t have to treat this like intense physical training, it would obviously be a lot less powerful.
"I-I know. I-It’s just always weird to take such a strong hit... p-plus it’s so hot. I-If I were stronger—" I kiss her to pull her out of her rambling while keeping my cock, which gets even harder, inside her.
"We still have several hours, and I’m nowhere near satisfied. Are you going to handle it this time?"
"...O-Of course I will! It’s a matter of honor!!" When she says that, I remember our first time — when we had both just turned 18 and decided, after a mission, to recharge our energy with something more intimate than mere hugs.
...
...
...
"Of course I’M sure, Nadir!! It’s a matter of honor!! You won that bet and convinced me, and we both turned 18 last week!! We can legally have sex without any problems, and no one can stop us!!" Zenith says, naked on the bed, while I stare at her small breasts.
’I wonder how big they’d be if she ate properly...’ I look at Zenith’s legs. Despite her stoic expression, she’s nervously tapping her foot on the floor, touching it with her toes and pulling them back repeatedly.
"If you agree, fine. But I still think—"
"No! We don’t need protection or any kind of restraint! It’s just sex. It shouldn’t be that hard, right?" she says while I sigh. She’s always so impulsive.
"Alright." I take off my clothes and approach the bed, but when I do, Zenith blushes and looks away.
"W-Wow, you’re big..."
"And how do you know what’s big or small?" I ask with a smirk.
"O-Obviously from anatomy books, you idiot. That thing must easily be 16 centimeters!! How is a scrawny guy like you so well endowed? And won’t it get even bigger when you actually train and build real muscle? That’s ridiculous," she rambles as I climb onto the bed, pushing her down onto it.
’She’s so light...’ I’ve always been very concerned about Zenith’s weight. Even now, she weighs a measly 45 kilos, which is absurdly little for someone her height.
"Can I start?"
"D-Do whatever you want!! Give it everything you’ve got!! No going slow! I heard the first time hurts, so you’ve got to go all in! Like ripping off a bandage!! Only idiots go slow so they feel more pain for longer!!" She goes against every "romantic cliché" of being gentle the first time.
"Haaa..." I sigh. She’s always going to be like this, isn’t she? I wonder if she’ll still have this extremely rebellious and reckless personality after 30. It’s not a problem, but it causes problems.
"Three... two—"
"Just go already! No need to count!" When she says that, I spread her legs completely and just shove it carelessly inside her. I can feel a thin membrane tearing as blood starts to trickle out.
"..." Zenith bites her lips, trying not to cry, but she looks at me with tears forming and a hurt expression, as if I were to blame.
"W-Wait, why are you looking at me like that? You told me to go all in!!"
"I-Idiot..."
"W-Wait, don’t move like that—" As she tries to get up, she ends up slipping and knocking both of us off the bed. I let out a groan of pain, feeling like my dick almost snapped as her weight bent it forward while she arched back, her fingers trying to grip something as she made a soft sound of pain.
"..." She just collapses forward onto my chest.
"P-Please don’t move... t-this hurts more than I thought... it’s your fault... y-you’re too big!!" She blames me, even though she saw the size and insisted on going all in.
"...Okay, it’s my fault." I caress her thighs while staying still, feeling my cock throb painfully.
’I-It’s definitely going to be completely bruised by tomorrow...’
...
...
...
"What are you looking at with that stupid grin?" Zenith asks me, pulling me out of my thoughts about our disastrous first time.
"Nothing. I was just remembering how, during our first time, you spent almost the entire night crying at any slightly fast movement, and we ended up stuck for hours on the cold floor."
"!!!" She blushes with embarrassment and throws a pillow at me.
"J-Just start moving again already, you idiot! We need to drain all the cum out of your balls so we can finish this and go home!!!" She says it all rudely, trying to run away from her embarrassing past. I just chuckle and start moving inside her again.
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