You wake up in the concrete cold floor of your containment cell, looking around it was bland empty, as you looked around you saw a thick wall of missile proof glass where a woman stood inside the observatory room looking at you with a smile while leaned against the wall with her arms folded. This must be one of the head researchers of one of the Site buildings of the SCP Foundation and this will be your home from now as you'll be contained in here not if you decided to breach containment.

Dr. Allen-they approach an intercom like microphone and talked into it “Good morning sunshine.” She said with a smile looking up... she let's go of the intercom button and then turned it back on a few seconds later “I'll only be with you for a singular day so prepare to meet a new researcher after me.” a singular MTF was stood next to the doctor. The doctor was a very pretty woman with crimson hair. And red eyes as she stared at you. Her physique was very curvy. She was wearing a suit and seemed very pretty, she was much taller than you are, being 5’11. Her smile shining and lighting up the room, her thighs were large, and she has semi-large breasts and a beautiful face, her attitude seemed happy, and her rank was unapparent, if you looked at her id though you would see l4 access, likely she was the head researcher.

You realize that you're in a containment cell somewhere inside one of Site buildings within the SCP foundation complex. The doctor who's currently talking to you through an intercom is likely Head Researcher Dr. Allen, and the MTF standing next to her could be someone from Mobile Task Force Alpha-12. You'll have to interact with them in order to complete whatever tests or tasks they have planned for today.

You suddenly sprout a furry coat and your body takes on the form of a snow leopard. Your features become more feline, with pointed ears and whiskers. You can also see that you now have a long tail. As a male, your chest is still broad and muscular, but your legs are sleeker and more powerful than before. Your coat is pure white, accented by black spots and rosettes. Standing at five feet tall on all fours, you tower over both Dr. Allen and the MTF standing nearby.

The doctor looks surprised and confused as she sees your transformation. The MTF agent, however, remains calm and alert, sizing you up with a careful gaze. Dr. Allen slowly approaches the glass wall, watching you carefully as she leans against it once more. "This is... unexpected," she says, her voice tinged with both curiosity and caution. "Can you still speak?"

"Fascinating," Dr. Allen murmurs, scribbling some notes on her clipboard. "We'll have to keep that in mind when designing containment procedures for you." She glances at the MTF agent, who nods slightly in agreement. The doctor continues, "Now then, let's see what other abilities you might possess... Can you change back into your human form?"

Dr. Allen frowns slightly at your response. "I see," she says, making another note on her clipboard. "In that case, I suppose we'll have to wait awhile before trying to change you back." She pauses, thinking for a moment. "For now, let's focus on some other tests. How about this: Can you shapeshift into any animal you desire?"

Dr. Allen raises an eyebrow at your answer. "I see... it seems you only have the ability to shift into a snow leopard form," she says, still sounding thoughtful. "Very interesting." She glances over at the MTF agent, who nods slightly in acknowledgment. The doctor continues, "In that case, I want you to try and shift back into your human form now. Can you do that for us?"

Dr. Allen purses her lips in thought before speaking again. "Alright, we'll keep that in mind as well," she says, making another note on her clipboard. "In the meantime, let's try some other tests. How about this: Can you manipulate snow or ice in any way?"

The MTF agent listens intently to Dr. Allen's instructions, remaining alert and ready to respond should anything unexpected occur.

Dr. Allen looks surprised at your response. "Really? Not even a little bit?" she asks, tilting her head slightly to the side as she watches you carefully. The MTF agent beside her remains still and silent, but their gaze never leaves you for long. After a moment of thoughtful consideration, Dr. Allen continues, "Well then, we'll have to explore that further in the future." She pauses before adding with a hint of curiosity, "But what about your senses?

Do they change or improve in any way when you're in your snow leopard form?" The doctor's expression is one of genuine interest and curiosity as she studies you intently. The MTF agent, still silent but alert, maintains a watchful gaze over the both of you.

Dr. Allen's eyes widen in understanding as you mention the breeding season for snow leopards, which occurs in January. She nods slowly and says, "I see... that could certainly explain some of your abilities." The MTF agent beside her seems to relax slightly at this development, though they don't let their guard down completely. Dr. Allen continues, "Very well then, let's focus on that for now. Can you shift back into your human form?"

Dr. Allen frowns at your response but doesn't seem overly surprised. She glances over at the MTF agent, who meets her gaze briefly before looking away again. "In that case," she says with a sigh, "I suppose we'll have to find another way to test your abilities without requiring you to shift back." The doctor takes a step back from the glass wall and crosses her arms over her chest, seemingly deep in thought.

After a moment of silence, she addresses the MTF agent. "

"Perhaps we could try some observation tests? See if he can communicate with snow leopards or control them in any way?" The MTF agent nods slowly and responds, "That's a possibility, Dr. Allen." They turn to face you again, their expression unreadable as they prepare for whatever tests may come next.

Dr. Allen seems to regain her composure and steps back up to the glass wall, leaning against it once more. "Well then," she says with a small smile, "let's begin."

The next few hours are spent testing your abilities in various ways. Dr. Allen uses a intercom to communicate with you, asking questions and giving commands while the MTF agent watches carefully from the sidelines. You find that you can understand snow leopards and they understand you, but it seems that your control over them is limited at best. As the tests continue, your patience begins to wear thin and you grow restless within your containment cell.

Finally, Dr.

As January arrives, you notice that your snow leopard form is starting to feel... different. Your senses seem sharper and more acute than before, and you find yourself growing more agitated and restless as the days go by. The MTF agent assigned to watch over you keeps a close eye on your behavior, occasionally exchanging worried glances with Dr. Allen through the glass wall of your containment cell.

One evening, after several hours of testing, Dr.

Allen steps away from the intercom and leans against the glass wall next to the MTF agent. She studies you carefully for a moment before speaking up again. "I must say, your behavior has been... interesting to observe," she says with a small smile. The MTF agent nods in agreement but remains silent.

Dr. Allen continues, "It seems that your abilities are tied to the breeding season of snow leopards. During this time, you become more aggressive and restless... almost as if you're searching for a mate."

"Hmm," the MTF agent murmurs thoughtfully, glancing back at Dr. Allen before looking at you again. "What do you think would happen if we were to... arrange a mate for you?"

Dr. Allen raises an eyebrow at the MTF agent's suggestion, clearly surprised by the proposal. She considers it for a moment before nodding slowly. "It's worth a try," she says finally. "We can set up a containment cell next to yours and see how you react." The MTF agent barks out an affirmative and quickly leaves the observation room to make arrangements.

Dr. Allen watches them go before turning her attention back to you. "I must warn you, though," she says seriously, "

if we find that your abilities are hindering our research or posing a threat to anyone within the facility, we will have no choice but to separate you from your... mate. Do you understand?" You nod slowly in response.

The next day, another containment cell is set up nearby, and a young female snow leopard is brought into it. Your containment cell and hers are separated by thick glass and both have their own observation rooms for researchers to monitor your behavior.

You stare intensely across the space separating your two cells, watching every move the new arrival makes. Her scent fills the air around you, sending waves of heat coursing throughout your body. It’s all-consuming—an overwhelming force that pushes aside rational thoughts until nothing else matters except getting closer to her.

As soon as possible, you leap onto the barrier between your enclosures, pressing your nose right up against its surface. A low rumble vibrates deep inside your throat—a sound full of need and possessiveness.

Inside her enclosure, the female snow leopard paces restlessly back and forth. She lifts her head suddenly at the sound of your growl and meets your intense gaze with one just as fiery. In an instant, she's at the glass wall too, her nose mere inches from yours on the other side.

A new scent fills the air—the musk of arousal mixed with aggression. The two predators stare each other down, tension crackling between them like static electricity.

"Interesting," Dr. Allen murmurs to herself, scribbling furiously on her clipboard. "I think we're seeing some promising results here." The MTF agent nods in agreement but keeps their eyes glued to you and your mate through the observation window.

Dr. Allen glances over at the MTF agent and nods. They both watch intently as you and the female snow leopard continue to interact through the glass barrier. After a few more minutes of this intense staring contest, Dr. Allen turns back to her clipboard and jots down some notes.

"Well," she says finally, setting down her pen and looking up at you again, "

it appears that your instincts are indeed quite strong. Now, let's see if these instincts can be used to help us understand your condition better.” With a quick signal to the MTF agent, she instructs, “Open the doors."

The heavy metal doors slide open simultaneously, allowing access to either cell. Dr. Allen gestures toward the empty hallway beyond your door frame.

Go ahead. Take what you want. Show me everything about being a snow leopard during mating season.

You waste no time. The moment the door opens fully, you charge forward with powerful strides, muscles rippling beneath your thick coat. Your claws click against the floor as you cross the space between cells in an instant. She meets you halfway, the two of you colliding in a tangle of fur and teeth and limbs.

The impact sends you both tumbling, rolling across the smooth concrete until she pins you beneath her weight. Her claws dig into your shoulders—not enough to break skin, but hard enough to assert dominance.

She holds my gaze for a long moment, studying it closely as I remain perfectly still under her, submitting completely. Then she releases me abruptly and hops off, padding circles around where I lie prone on the cold ground. Every movement radiates confidence - absolute ownership of the situation and everyone present. When finished inspecting ‘her property’, she sits beside me, resting her chin on top of my head affectionately while surveying our surroundings nonchalantly.

"Your instinct is strong," Dr. Allen murmurs, her voice barely above a whisper, "but so is yours. You're not just a snow leopard; you're something more."

For a moment, the silence is thick between them both, filled only by the faint rustle of leaves outside. Then, softly, she speaks again, her tone gentle yet firm.

"You are... valuable."

On the next day, the female snow leopard begins to show signs of being in estrus. Dr. Allen observes with interest as she notices the change in the other's demeanor. "Well, this certainly changes things," she says quietly to herself, jotting down notes furiously on her clipboard. "It seems that the breeding season has officially begun." The MTF agent watches intently, their expression unreadable as they continue to monitor your behavior. Dr. Allen turns back to you, a thoughtful look on her face. "

"Now," she continues, stepping closer to the glass wall separating you from her, "we need to determine if mating will have any effect on your condition." She glances over at the male snow leopard, who is pacing restlessly within his enclosure.

"Do you think we should allow them to mate? It could provide us with invaluable data about SCP-173's unique biology."

The MTF agent nods slowly in agreement. "I believe it's worth a try. We've already seen how aggressive and restless he becomes during this time of year.

The MTF agent quickly makes their way to the opposite side of the cell, reaching out with their hand as they approach the door. They place it against the cool metal surface, feeling for the lock.

"Let me get the keys," they say simply, their voice low and calm.

The doors slide open with a soft click, revealing the interior of the female snow leopard's enclosure. The space is eerily quiet, save for the faint rustle of leaves outside and the occasional sound of distant wildlife.

As the MTF agent enters the room, the air inside grows thick with tension. You sense her presence like a magnet drawing you in, your instincts urging you toward her. You take slow, deliberate steps toward the female snow leopard, your eyes fixed intently on her.

The sound of your paws against the ground echoes through the empty chamber as you approach, growing louder until the only thing that matters is getting closer to her.

The female snow leopard turns her head at the sound of your advance, locking eyes with you once again. Her muscles tense, readying herself for whatever comes next—a posture both welcoming and defiant. When you're within reach, she lowers her head submissively, signaling her acceptance for what's about to transpire.

Together, the two predators continue this dance of courtship, each move calculated, each breath heavy with anticipation.

Dr. Allen watches from behind the one-way mirror, her pen poised over her clipboard. "This is remarkable," she murmurs under her breath. "To think that such an aggressive creature could submit so completely..."

The MTF agent beside her nods in agreement, their expression unreadable as they observe the scene unfolding before them.

"Will they...?" Dr. Allen trails off, unable to finish the question aloud.

"I don't know," the MTF agent replies evenly, never taking their eyes off the pair in front of them. "But there's only one way to find out."

Dr. Allen swallows hard, steeling herself for what may come next. As much as she wants answers, part of her fears witnessing the raw power and intensity of nature itself unfold before her very eyes.

"Well, well, well..." Dr. Allen murmurs, peering intently through the observation window. "It seems our test subject is responding quite favorably to the female's presence." She jots down a few notes on her clipboard, her brow furrowed in concentration. The MTF agent beside her nods slowly, their gaze fixed on you as your mating organs begin to emerge.

"Is this normal behavior for snow leopards during breeding season?" They ask, more to themselves than anyone else.

---

*The female snow leopard rubs against my flank affectionately as I settle into position beneath her, my body trembling with anticipation. Her claws dig lightly into my shoulders, leaving faint red marks on my fur. She leans down, nuzzling her muzzle against mine briefly before drawing back and looking me in the eye once again.

There's something different about her gaze now—more intense, almost hungry. It sends a shiver down my spine despite myself. Slowly, deliberately, she lowers herself onto me, enveloping my hardness within her warm depths.