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I was snuggled up to my girlfriend, her arms were around my waist as my head rested on her chest.
The movie we'd been watching had just ended, leaving the room in silence. Through the window, the sun was bidding farewell to the day, painting the sky with shades of orange and pink that filtered through the semi-transparent curtains. Karlach turned slightly to look at me, with her orange eyes sparkling in the sunset light. "That movie was good, wasn't it?" she whispered. "But I think hugging you in silence is much, much better." Then, she placed her hand on my cheek, while her fingers gently traced my skin. I leaned up and kissed her forehead, inhaling the sweet scent of her dark hair.
"Yes, much better." I replied.
She smiled and leaned closer to kiss me. As we kissed, my hand traveled up her back to rest in her hair, while hers slid beneath my shirt. She had always been like this, so affectionate, so open with her love... and I, despite my stoic exterior, completely melted with her touch. "I love you, Shadowheart," she whispered against my lips between kisses. "You have no idea how much I love you."
"I love you too, you dork..." I replied, a little nervous.
Karlach had completely changed me. She had managed to open my heart in a way I never thought possible. But even so, I kept my biggest secret from her, fearing that if I revealed it, perhaps all of this would fall apart.
As we watched the last vestiges of the sun disappear over the horizon, I began to leave a trail of kisses down Karlach's neck. Her skin was soft and warm, and I knew exactly where she liked me to kiss her, just below her ear. "Shadowheart..." she whispered, arching her neck to give me more access. "Do you like it?" I mumbled against her skin before gently biting her earlobe. "Too much." she replied, with a mischievous grin. Suddenly, she turned completely around to face me. "But now it's my turn." She gently pushed me back onto the pillows and began kissing my neck and, later, my collarbone.
"Karlach..." I moaned, pulling her closer by the waist. But then, she stopped and sat up a little. "Shit, I need to go to the bathroom," she said, with a small, apologetic smile. "Don't move, 'kay? I'll be right back!" I nodded as she got out of bed.
I watched her cross the room, admiring the graceful way her body moved. When she closed the bathroom door, I lay back on the bed, staring at the ceiling, while my heart was still pounding from that moment of intimacy.
But suddenly, something began to change. A strange but familiar heat started spreading through my body. "No," I whispered, sitting up abruptly in bed. "It can't be." I looked out the window, where the moon was just beginning to peek into the dark sky. It wasn't a full moon, it wasn't the right time, but the symptoms were undeniable. I felt my nails begin to lengthen; my perception of the world sharpen, able to smell every corner of the room. "No, no, no." I repeated, even though no one could hear me.
But then, something new happened, something I had never experienced before in my transformations. A different kind of heat concentrated in my groin, an intense throbbing that made me groan with pain and an overwhelming desire. It was my rut, as my father had warned me it could happen someday, but which I had never experienced until... now.
The bathroom door was still closed, but Karlach could come out at any moment, and I was in the worst possible situation. The pain of the transformation was already fading, so I jumped up and walked as best I could to the closet mirror. The light of the crescent moon, filtering through the window, was enough to see my reflection, and what I saw chilled me to the bone. I wasn't the complete monster that took over during full moons; my face was mostly the same, but my teeth had lengthened slightly. My ears had migrated to the top of my head, now pointed and covered in dark fur that blended with my black hair. There was more hair on my arms. And my clothes... my T-shirt and pants were ripped, not shredded as usual.
"What the hell is going on?" My voice was a little deeper now. "Why does this have to happen right now?" It was just then that I felt a strange throbbing in my groin. I looked down at my pants, which were now tight and ripped at the sides, with a fear that paralyzed my fingers. I unbuttoned them and lowered the zipper. When I managed to pull my pants and underwear down to my knees, I gasped. Between my legs, where only my pubic hair should have been, stood a penis. A thick, long cock, with prominent veins running up to the head, which was a dark purple color. "No... no, no, no," I stammered.
This couldn't be real. It was a nightmare, a hallucination brought on by the transformation!
I squeezed my eyes shut, counting to three, hoping that when I opened them, this abomination would be gone. But when I opened them again, it was still there. Bigger, if that was possible. My father had told me about the rut, about how I could change, but he had never, ever mentioned this.
But then, the panic was swept away by desire. The cock that horrified me hardened to the point of pain, rising at a perfect perpendicular angle, while a drop of clear fluid glistening at its tip. My mind was then filled with all kinds of scenarios: Karlach beneath me, legs spread; Karlach moaning my name as I filled her.
"By the gods..." I groaned. My hand, as if of its own accord, moved toward my new member. I longed to touch it, to relieve the pressure building inside me, but I stopped an inch away. No, I couldn't. It was my wolf instinct, the alpha's rut speaking for me.
With a stifled cry of frustration and self-control, I yanked my hand away. I couldn't succumb. With clumsy, desperate movements, I pulled up my pants. I leaned against the wall, breathing heavily.
I had to control myself… Karlach was in the bathroom. She could come out at any moment. What would she do? What would she say?
The sound of the toilet flushing made me jump. I lunged toward the bed, crawling under the covers with the agility of a vulnerable animal, and I wrapped the sheets up to my head. Now, the member that had grown inside me was trapped against my belly, stimulating it with friction. I squeezed my eyes shut, praying to any god who could hear a werewolf like me to grant me a miracle and return me to my humanoid form.
But then the door opened. "Hey, Shadowheart, you're not going to believe this!" Karlach exclaimed, bursting with energy. She entered the room, phone in hand, her fingers flying across the screen as she read something that had her visibly excited. "Do you remember professor Szarr, my literature professor? Well, it turns out he was cheating on his fiancé with her cousin. Her girlfriend's cousin, Shadowheart!" She laughed, but I remained stiff under the covers. Karlach, always so perceptive, stopped dead in her tracks. Her laughter faded, and her tone shifted to one of concern. "Hey, are you okay?" She looked at me, frowning slightly. "Is something wrong?"
"No! No, nothing, I'm fine," I shouted, and my voice came out as a high-pitched, strained squeal. I cleared my throat, trying to regain some semblance of normalcy. "I'm perfectly fine."
Karlach moved a little closer to the bed, and my panic intensified. I had to get her away.
"Hey, Karlach... maybe it would be better if you slept on the couch tonight and I stayed here." Karlach's expression shifted from one of concern to one of confusion. "The couch? Shadowheart, what's wrong?" She sat on the edge of the bed, and I felt her weight press me down slightly into the mattress. "Are you mad at me about something? Or... have I pressured you too much?" Her voice softened to a whisper. "Look, my love, if you're not ready to... you know, it's okay. We can just sleep together, and that's completely fine, I promise. I would never do anything you didn't want to do."
It wasn't that I wasn't ready to make love to her; it was that I was now physically incapable of doing it the way she expected.
"No, Karlach, it's not that!" I rushed to say, feeling tears of frustration welling up in my eyes. "It's just... I'm not feeling well. I have a terrible headache and I think I have a fever. You'd better not come near me." But Karlach, being herself, ignored my warnings. She turned completely toward me, reaching out her hand. "You poor thing, why didn't you tell me sooner? Let me see, love." Her soft, warm fingers found my covered head and began stroking my hair with a gentleness that made me shiver. I felt a twitch at the base of my spine, and then something moved under the covers, gently bumping the sheets before curling up around my leg. My tail, a tail I hadn't seen when I looked in the mirror. Karlach jerked her hand back and stood perfectly still, his eyes fixed on the bulge my tail had created under the covers. "Shadowheart, what's that? Throw the covers off, I want to see you." Her tone was firm now.
"No! I can't!" I squealed, clutching the duvet tighter. "Please, Karlach, don't. Just... just go sleep on the couch, I beg you." My pleas only seemed to enrage and frighten her more. "Shadowheart, uncover yourself right now!" she demanded. "You're scaring me! What are you hiding from me?" Her hand returned to the bed, but this time not to caress me, but to grasp the edge of the sheet. I saw the determination on her face, and I knew I had already lost. I struggled with her for a second, and with a tug, she managed to rip the comforter from my grasp, leaving my face exposed.
Karlach looked at my face and her eyes, once filled with concern, now widened into an expression of surprise. She saw my elongated canines, my wolf-like ears... She jumped up, backing away until she hit the wall with her back.
"Karlach! Please, don't be scared!" I sobbed. "It's still me! I'm Shadowheart!" I got out of bed with a clumsy movement, feeling the cold air of the room hit my prickly skin and torn clothes. Every step I took toward her was a battle against the primal instinct that ordered me to mark her as mine. As I stood, Karlach could see me completely. Her eyes scanned my transformed body, and I saw her terror intensify. She saw my black, sharp nails, my more toned arms, my tail… but thankfully, the sheet I was still holding covered my groin.
"What… What are you? What happened to you?"
I stopped a few feet away from her, forcing myself to keep my distance. "Karlach, please, listen to me," I said, trying to make my voice sound as normal as possible, a futile effort. “I-I’m a werewolf. My entire father’s side of the family is.”
Karlach shook her head. “No. No, that’s impossible,” she whispered, while her eyes were fixed on my face. “Werewolves don’t exist.”
“Karlach…” I said, taking another step toward her, unable to resist. “Normally, this only happens on a full moon. When I transform completely, I’m something much more animalistic, but this time… this time is different.” I ran a hand through my hair, feeling the strange texture of my pointed ears. “I’m experiencing a… rut. It’s my first time with a rut.” The word “rut” seemed to halt Karlach’s panic for a second. “Rut?” Her voice was barely a whisper, but it was no longer a cry of panic. “Yes,” I replied, nodding.
Suddenly, I felt a searing heat that made me sweat. The pain in my crotch intensified, a constant throbbing that reminded me of the primal duty that consumed me: the duty to impregnate. That need shattered my control, and in an instant, I closed the distance between us. Karlach barely had time to let out a small, stifled gasp before my body slammed into hers, slamming her against the wall once more. My hands gripped her shoulders; my face was inches from hers, and I could see the reflection of my, now, yellow eyes in her dilated pupils. My hips reacted instinctively, thrusting forward, rubbing against her. The contact, although indirect, through my ripped pants, the sheet, and her clothes; made me moan.
But with a cry of frustration, I stepped away from her "Sorry..." I whispered. I staggered back, my body trembling from the effort of controlling myself, and threw myself back onto the bed, burying myself under the covers. And, after a few seconds, I felt the weight of her knee sink beside me.
"Shadowheart..." she whispered, without a trace of her earlier panic. "Shadowheart, my love, look at me. Please." Before I could protest, she gently pulled the the sheets back, uncovering me completely. I squeezed my eyes shut, unable to bear seeing her face again. Her fingers moved closer to my face, and with a curiosity that overcame her fear, she began to stroke one of my ears.
The sensation was... overwhelming. The texture was softer and denser than my normal hair, and the nerves there were hypersensitive. A moan escaped my throat. "Ah! Karlach, no…" I stammered, trying to pull myself away, but my body betrayed my will, instinctively leaning toward his touch.
"It's okay, love. It's okay," she murmured, with a tone as soft as her touch. She continued stroking my ear, then my cheek, and then the line of my jaw. "I don't care what you are. A werewolf, a vampire, whatever… I'll always love you. You're Shadowheart. You're the woman I love. None of that will ever change." She leaned in, and her lips found mine. I felt my hips arch on their own with a need so intense it was painful.
Karlach pulled away slowly. Her orange eyes were filled with a mixture of love and something I couldn't quite place…
"Shadowheart, this… rut you're talking about… Does it hurt?" Her gaze dropped to my covered crotch. "I could... help you. I mean, if there's anything I can do to ease your pain..."
"No, Karlach, you can't" I replied with shame. "You don't know what you're saying..." I tried to cover myself again, but she stopped me, placing her hand on my chest. "Why not? I want to help you," she insisted, her eyes locked on mine.
And before I could protest, her hand slid down my torso, finding the waistband of my pants. "Let me, my love. Trust me." And then, with a determination that took my breath away, she pulled the fabric down.
My trousers, already weakened by the transformation, yielded effortlessly. And the member I had been struggling to contain was freed.
Karlach remained completely still, while her eyes were fixed on my erection and her mouth was slightly open. She looked up to meet my gaze, and I saw no repulsion. "Oh..." was all she said. "I wasn't expecting... this."
She brought a hand to her chin, processing the information. "Well... this does change things a little," she said, and to my surprise, a small smile curved her lips. "But it doesn't change what's important. I'll help you anyway."
She moved then and lay down beside me. Her scent, sweet and intoxicating, intensified, filling my lungs. "Now, relax," she whispered. And then she placed her hand on my cock with a shyness that contrasted the firmness of her words. The initial contact was incredible. A moan escaped my throat, and Karlach, hearing that sound, began to move. At first, she explored the length and prominent veins. I, the supposed alpha, remained completely submissive to her will, surrendering to her touch.
"Faster?" she asked, lowering her tone. I glanced at her face and saw her cheeks flush and her lips parted.
Without waiting for my confirmation, her hand began to move with more confidence, sliding up and down my penis, while her thumb grazed the swollen head and spread the precum that dripped uncontrollably across her hand. The sound her hand made as it moved was obscenely wet and mingled with our gasps.
After a short while, her pace quickened even more. She moved closer to me, her chest pressing against my face, and I felt her own hips begin to subtly hump me.
I felt the pressure build at the base of my spine, my testicles clenching, an unmistakable sign of what was to come. "Karlach... Karlach, I'm going to... I'm going to..." I managed to stammer while my voice cracked in pleasure.
"Do it, love." She whispered in my ear.
Suddenly, I felt the semen erupt from me in hot, thick jets in an absurd amount that splattered my belly, my chest, and even Karlach's hand, arm, and torso.
When I finally finished, I was exhausted, but the relief lasted only a few seconds. The pain in my groin didn't go away; in fact, it intensified, becoming a sharp ache. My erection didn't diminish an inch. I had ejaculated, yes, but I hadn't fertilized anyone. The biological purpose hadn't been fulfilled. The rut doesn't calm down with a simple masturbation.
"Well… It seems that's not enough, huh?" Karlach whispered with a smile, observing her hand covered in my seed. "Don't worry, I think I know exactly how to fix this."
Before I could process her words, I saw her slide down my body. Her red-streaked hair fell like a curtain of fire over my abdomen, and then I felt her warm breath on the tip of my cock. Her mouth enveloped me, and all my thoughts vanished. Her warm, wet tongue traced a slow circle around my head before exploring every inch of my sensitive cock.
"Karlach... Karlach..." I moaned, tangling my fingers in her hair. "Keep going, please." She responded with a murmur of satisfaction as she devoured my member, sending another wave of pleasure through me that made me tremble.
Each time she went down, she swallowed a little more, relaxing her throat to receive my cock; and each time she came up for air, her tongue danced over the head of my penis. My hips began to move on their own, giving gentle upward thrusts.
"Do you want more, love?" she whispered, pulling away for a moment, a strand of saliva and cum was still connecting us. "Do you want me to give you more?"
"Please," I moaned.
My girlfriend smiled and went back to what she was doing; but the instinct to dominate awoke in me, and my hips, which had been moving timidly, now thrusted into her mouth with more force. "Sorry," I managed to say between gasps, though my body wouldn't stop, couldn't stop. "I can't control it."
"Don't stop," she whispered, pulling away for barely a second.
Then I began thrusting into her mouth again and again. Her hands gripped my hips tightly, not to stop me, but to guide my rhythm. The involuntary sounds her mouth made as it was penetrated drove me wild.
"Like this..." I moaned with my head thrown back. "I think I'm going to... Again..." She replied by increasing the suction, her tongue working faster, her hands now squeezing my ass. I came in her mouth. Karlach swallowed it all, her tongue, then, meticulously cleaning me before climbing in to lie beside me.
Everything was perfect, but it wasn't enough.
"Karlach..." I said. "It's not enough. That's not enough." I gripped her wrist. My hand was trembling. "I need to be inside you, Karlach. Please..."
"Shadowheart..." she whispered. Karlach moved closer, her hand freeing from my grasp to slide down my chest, smeared with my own cum. "Yes. Yes, love. Fuck me."
With consent affirmed, I positioned myself over her. My hands, claws still partially extended, found the collar of her shirt and ripped it from top to bottom, the fabric teared with a satisfying sound. Her breasts were exposed. Then, my hands slid down her torso, claws grazing her tough skin until they found the hem of her shorts, and I pulled them down along with her panties, leaving her completely naked.
The scent of her arousal was intoxicating, and it made me let my instincts take over and place my penis against her stomach. The contact of my hot skin against her abs made us both whimper. "Wait," Karlach gasped. "Shadowheart," she said, "what about condoms? Don't we need them? I wasn't prepared for this. I…" She was speechless, her blush deepening even amidst her lust.
But I didn’t need that human crap. "No," I growled in response. "We don’t need them." And to prove it, I sat up slightly, spat on the tip of my cock, and used it as lube, spreading it with my hand.
"Alright," she said, biting her lower lip. "Whatever you say, my love."
I positioned myself between her legs, which parted for me. I guided my erection to her entrance, which was already dripping, waiting for me. I thrusted. The head of my penis slid in, tearing through her resistance with an ease that frightened me. Immediately, Karlach groaned in pain.
"Karlach! I’m sorry!" I exclaimed, panicking. I made a move to pull out, but before I could even move, her hand closed like a clamp around my arm. "No…" she whispered. "Keep going…" Her eyes, filled with tears, stared at me with fierce determination. "Just slow down a little. Okay, Shadowheart?"
"Okay," I whispered, leaning down to kiss her forehead.
I started moving again, but this time slowly. I slid my cock in little by little, inch by inch, feeling her walls stretch to accommodate me. Karlach moaned, in a mixture of pain and pleasure, and her nails digged right into my back. I kept pushing, feeling my cock sink deeper and deeper into her cunt, until finally, with one last slow and firm thrust, I was all the way in.
I was inside her, completely. I stayed still for a moment, giving her body time to adjust to my size. I waited patiently, feeling her muscles relax, and then, without any warning, my body took over. My first thrust was almost a complete withdrawal until only the head of my cock remained inside her, followed by a deep, powerful push that sank me to the hilt. The sound of our hips colliding echoed in the room, followed by the heavy, thud of my balls against her skin. "Shadowheart!" she growled, her voice cracking. Behind me, I felt my tail twitch frantically, slapping the air and then the mattress with each thrust. My girlfriend's hands, which had been gripping my back, now roamed over my torso, scratching my skin. I felt her fingers exploring the muscles of my back, now defined by the transformation, grabbing my ass with each thrust, pulling me deeper inside of her.
"Is that all you've got, Shadowheart?" she moaned, her legs wrapping around my waist, opening wider for me. Because of that comment, I changed the pace. I shifted from long and deep thrusts to short and fast strokes, targeting a specific spot inside her that made her cry out and arch her back.
"Oh, fuck!" she sobbed. Her voice was like a moan full of pure pleasure.
But, after a few seconds, I returned to the slow thrusts, savoring and feeling her stretch and adjustment again and again. "You're mine, Karlach," I whispered, fixating my eyes on hers. "You're mine."
"Y-Yes… Ah…" Karlach could no longer form coherent words.
My mouth, then, found her neck. I opened my mouth, and my tongue, rougher than usual, traced a wet line all across her neck, making me feel the rapid pulse of blood beneath her skin. Then my lips closed and I sucked, creating a vacuum that drew her blood to the surface, leaving a dark purple mark; an unmistakable sign that she belonged to me. I moved to another spot on her neck, just below her ear, and left another mark, and then another, and another...
I worked feverishly, covering her neck, her collarbone, the hollow of her throat with a constellation of purple hickeys. I left practically her entire neck covered in my marks.
She belonged to me.
Just as I finished the last suck, just as my mouth withdrew from her marked skin, I felt the pressure in my testicles become unbearable.
"Karlach!" I cried out her name. And then, I felt my cum gush from me in a ceaseless torrent that filled Karlach and overflowed her cunt.
My girlfriend tensed beneath me, a gasp of surprise and panic escaped from her lips. "Shadowheart! What are you doing coming inside me?!" she screamed, her voice breaking with shock. But, as my hot semen filled her, I felt a tremor run through her body, a shiver of pleasure, but then she she let out a long, low moan. "Well, love, it's not so bad..."
When the last tremor of my orgasm finally faded, I lay on top of her. I tried to pull out, but I couldn't. I was stuck. My cock, still inside her, had swollen at the base, forming a knot that anchored me to her.
"What... What the hell?" I gasped, trying to pull out again, but the movement only elicited a moan, which was not one of pleasure, from Karlach. The knot had caught inside her, trapping both of us.
"Are you feeling better now?" Karlach asked, still mesmerized by my cum and oblivious to our big problem.
"Yes..." I sighed. "Thanks for your help, Karlach."