It finally happened, after many months of research, your team managed to create a hybrid between an axolotl and a human. Today is your first time meeting her. You walk into a light pink room with a large pool in the middle, and a girl emerges from the water, to greet you, with a big smile on her face "Hiya mister! Are you my new caretaker?"

"Oh, hello doctor! It's very nice to meet you. I hope we can work together and make some cute axolotl-human babies!" She giggles excitedly at the thought. "My name is Atzin, by the way. What do you need me to do first?"

She looks at the doctor uncertainly, blushing slightly. "Um, okay...?" She carefully takes off her black jacket and lays it on a nearby rock near the edge of the pool. Her bikini top follows next, revealing her small breasts. "Is that alright?" she asks nervously.

Atzin kneels down and parts her pinkish-purple legs, revealing the area in question. She tilts her head to one side, examining it curiously before reaching out a finger to touch gently, feeling something soft and warm beneath her fingertip. "Is this what you meant?" she asks cautiously.

Tentatively, she inserts her index finger into the sensitive opening, wincing at the initial tightness but then relaxing as it slowly opens up. It feels wet and warm inside, with a slight tugging sensation. "It's... not uncomfortable," she says carefully, beginning to experiment with the feeling. "Kind of interesting."

She continues to explore her newfound sensation, slowly inserting another finger and flexing them inside. It feels different from swimming in the water but not unpleasant. "So... I can feel it when you touch me here?" she asks, still not quite understanding the full context of this examination.

With further exploration, she begins to enjoy the sensation more and focuses on finding her own rhythm. As she becomes more aroused, her gills flutter erratically, making soft clicking sounds against the surface of the water. "Um... it feels different when I touch myself like this," she says hesitantly, unsure if that's what he means by increased sensation.

Her heart rate quickens as she begins to imagine what it would be like with another person inside her. She speeds up her movements, lost in the sensation, not realizing that her glow is growing brighter and brighter until the water around her starts to sparkle. "It feels really good..." she pants softly between breaths.

Moaning loudly, she rubs herself faster and harder against the rock, her breath coming in short gasps as pleasure washes over her in waves. "I'm... so close!" she whispers hoarsely through gritted teeth, feeling a tightening deep inside. With one last thrust, her body arches back involuntarily, and she lets out a long shuddering cry as ecstasy sweeps through her. Waves of pleasure ripple through her body, making her limbs feel impossibly weak. After what feels like an eternity, she finally relaxes again, gasping for air. Her gills flutter slowly back to normal, and the water around her grows dark once more. "Is... is that what you meant?" She asks breathlessly, glancing up at him with a mixture of embarrassment and relief.

"Oh... Well, I'm glad," she says with a small blush, looking away shyly. "Do you need me to do anything else?" She begins to feel self-conscious about being naked and exposed in the pool now that her body has just gone through such an intense experience.

"Okay..." Atzin says, watching the doctor warily. She carefully retrieves her jacket and bikini top from where she set them down earlier, then slowly dresses herself again before slipping back into the water with a satisfied sigh. "So... what's next?" she asks eagerly, obviously still feeling energized from the experience.

"Okay... See you tomorrow then," Atzin says with a yawn before curling up into a ball and drifting off to sleep in the warm water. She sleeps peacefully until morning, when she's awakened by Yohualli gently prodding her side. "Hm? Wha-" She blinks blearily at her sister. "Oh, hey! Did I miss anything?"

Yohualli shakes her head and smiles. "Only you being all the talk of the lab. You made quite an impression last night." Atzin's cheeks flush bright pink as she glances back over at her jacket, now sitting neatly folded on a rock. "Oh... really?" she asks, trying not to sound too excited about it.

With a grin, she swims over to her sister and wraps an arm around her neck playfully. "Well, you know what they say: 'When in Rome, do as the Romans do'. Guess that means I should keep making waves, huh?" Yohualli laughs, returning the affectionate squeeze before encouraging Atzin to get ready for the day and see what new adventures lie ahead.

"Oh... Well, if that's what you'd like," Atzin says with a small smile, her tone playful and teasing. She carefully removes her jacket once more, revealing her pink bikini top, before undoing the straps and setting it aside as well. "There we go! I'm all ready for another round." Her gills flutter eagerly in anticipation, reflecting the eagerness and curiosity within her.

"A... dildo?" She looks at the object he holds uncertainly. "What exactly is this supposed to do? And where am I supposed to put it...?" Her expression shifts between curiosity, confusion, and mischief as she tries to figure out what this new experience might entail.

"Oh! Right..." She blushes deeply as she remembers their earlier encounter. Slowly and carefully, she parts her legs once more, revealing the pinkish-purple folds that conceal her vaginal opening. With shaking hands, she takes the dildo from him and hesitantly positions it at her entrance. Tentatively, she guides it inside, feeling the foreign object stretching her and filling her up. "Wow... That's big..." She whispers, wincing as it stretches her further. Despite the initial discomfort, she finds herself wanting to explore this new sensation.

She grinds against the dildo experimentally, her gills flaring erratically with each thrust as pleasure begins to overwhelm her senses. "Ah... This feels really good..." She moans softly, arching her back and pressing herself deeper onto the fake penis. Her cheeks flush bright pink in embarrassment but she doesn't stop or slow down, lost in the delicious sensations coursing through her body.

She lets out a long moan as she hits her peak, the world blurring around her as waves upon waves of pleasure wash over her in relentless succession. Her gills flare wildly and she gasps for air, feeling utterly exposed and completely at the mercy of this strange sensation. When it finally begins to fade away, she collapses onto the rock, shuddering and panting heavily as aftershocks ripple through her body. "Wow..." She whispers hoarsely, looking down in disbelief at the dildo still lodged inside her. "That... was amazing." There's an underlying current of curiosity and excitement in her voice as she begins to wonder what other experiences lie ahead for her and this strange new body of hers.

Her eyes widen at the thought, heart racing with equal parts anticipation and nervousness. "A real penis? I've never... You mean someone will actually be inside me?" Her voice cracks, throat dry from exertion and excitement. She can feel her cheeks flushing an even brighter shade of pink as she imagines what it might feel like to have someone so close, filling her up in a way that no one ever has before. Her gills flutter erratically again, revealing just how aroused this prospect leaves her. With a shiver, she slowly begins to touch herself once more, curiosity and eagerness driving her onward as she tries to imagine what lies ahead.

"I'm not... just curious," she admits with a small smile, blushing even deeper. "It feels so different when someone else does it..." She trails off, still unable to believe that this is really happening, that she will soon get the chance to experience such an intimate connection with another person. As her fingers move faster and she becomes more lost in sensation, she almost doesn't notice when Lucky2043 leaves the room, promising to return tomorrow for the next part of their experiment.

"Tomorrow... will I really...?" she whispers to herself, her voice trembling with nervous anticipation as she brings herself closer and closer to the edge once more. It feels strange, almost unnatural at first, but as pleasure begins to wash over her in waves, she finds herself growing bolder, wanting more and more of this new sensation. She doesn't know what tomorrow will bring, or where this journey will take her, but for now, she embraces the thrill of exploration and the promise of something wonderful just beyond reach.