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**"Her vital signs are the same? What is causing the expansion?"

Veloski observed the monitors for Tiffany's vitals. Her heart rate was increased, but then the first change they noticed. The mat Tiffany was resting on has weight sensors, her weight was 82kg when she first knelt down onto it. But Veloski raised an eyebrow when he noticed her weight went up by 2kg as her belly was now obviously expanding. "Her weight increased, her abdomen has to be filling with something, but what? What could her body create to do such a thing?" he said, baffled about how and why Tiffany's body did this.

Tiffany breathes faster, the tingle she felt the few times before was now overwhelming her body once more. But this time, it was controlled. She felt somewhat safe, but nervous mainly for the fact that she was around people she didn't know. Despite that fact, these people also were in the medical field, they have been trained to handle such things, going by their lab. She knew she had to let herself get to her full size to let these people understand what is causing this. But despite now being under observation...unlike the previous few times, she was wanting this to happen. She wanted to inflate and get release.

"Her body is up to 88kg now, do you want her to stop?" the assistant nurse asks. "No, it's obviously some sort of stimulation, I doubt she knows how to stop at all," Veloski proclaims. He strokes his chin as he watches her vital signs, lost in thought to what could be the cause.

Tiffany arches her back a bit and closes her eyes. 'They want to see how large I get and run tests, I may as well swell up already,' Tiffany thinks to herself. She sneaks her left hand on the outside of her left leg, she opens her eyes back up and sees Veloski and his assistant distracted with the monitors. She arches back just a little bit more and is able to sneak her hand by her butt. Her hand grazes off of her cheek, sliding further past towards her pussy. It was already belting out heat like a nuclear furnace, she didn't want to climax, but only to speed things up to her full size. her middle finger reaches her clit, as she gently rubs it back and forth. The tingling sensation rushes from just her stomach to all over her body.

Tiffany quietly moans, she can feel herself swelling, her skin tightening up. Veloski notices a change in heart rate again and looks over to Tiffany and sees her in a more pleasureful state. But he doesn't want to stare, simply because it was bad manners. His assistant however is baffled, watching Tiffany's belly grow in size. Veloski eyes the monitors, her weight was growing steadily, as she had already reached 97kgs and still gaining.

"Doctor, do you have any idea what the cause is yet? Fluid buildup maybe?" his assistant asks. Veloski has no answer, nor does he know what to think of this. He looks at the monitor again, her weight was now at 104kgs. Her belly was halfway to it's full size, as now Tiffany felt her breasts tingle. "I-I forgot that h-happens n-now," Tiffany whispered to herself. She was normally a DD cup, but they started to swell, too. Her belly was already pushing her breasts upwards, as she was starting to feel the weight of her girth finally. Her face blushes, she wants release, but she needs to swell up first.

Velsoki looks back towards Tiffany to see her increased volume. "Her breasts are effected, too?" he says, turning back to the monitor. Her heart rate stayed the same, her weight now at 110kgs. His assistant still in disbelief, but she cannot even bring words to what she's seeing. Tiffany's belly continues to swell, her breasts are now blocking her view towards where the doctor and his assistant are observing. Her face is still red as she continues to become more flustered and wanting release. "Her weight is now at 124kgs! She's almost doubled her weight, doctor!" his assistant nervously states.

"Oh god, I'm so fucking horny. It's never been this bad before," Tiffany says to herself. But she had to maintain her size, she kept reminding herself as she still felt swelling. But finally, the tingling stopped, as she reached her full, swollen size. Her belly was four feet past her knees on the mat. Her belly pushed upwards past the top of her head, her swollen breasts resting atop her sensitive belly. Her legs were pushed to the side almost completely. She felt heavy and couldn't move. She whimpered aloud, "I've s-s-stopped, I-I think,"

"Doctor, she's done swelling I believe. I think I heard her say she's stopped," says his assistant with a nervous tone. She looks at the monitor and sees 139kgs. Veloski can't believe his eyes, there Tiffany was, swollen and pent up like she said she becomes once stimulated. He rubbed Tiffany's belly, her fur was thinned out and the skin taught but still soft to the touch. But Tiffany yelps in response, Veloski's eyes widen. 'Hmm, her abdomen has become highly sensitive as a result,' he thinks to himself. His assistant walks over to the other side of Tiffany to check on her. "You doing okay, dear?"

"Please hurry up, I need to cum. I can't stay like this for long, I get crazy, please," Tiffany whimpered to the assistant. She blinks rather quickly, not expecting any such response from the swollen cat. She walks back over to Veloski, "Sir, she is hyper stimulated. Her face is bright red, she's perfusely sweating, it's like a hyper state of her being in heat almost. I think we should hurry and finish this first session soon," she says to him. Veloski nods, "Go, grab the scanner screen. Let's get a look inside of her before she's too uncomfortable,"

His assistant grabs what looks to be a large flat monitor on wheels, she rolls it to the right side of Tiffany. "Dear, hold still the best you can. We're going to see what's inside of you while you're like this, okay?" she tells Tiffany. "O-Okay," she whimpers back. Veloski removes a small remote from his coat pocket, presses three buttons and the screen activates. A computerized voice is heard.

[Good afternoon, doctor. Please input a command]

Veloski presses a button on the remote, then speaks. "Scan the subject, full internal body scan. Note any abnormalities detected,"

[Scanning mode activated] [Scanning subject, please wait]

Tiffany tries her best to remain still. She feels her pussy throb, but her belly pushed her up high enough that she can't rub it on the mat. So she waits for the scan to complete.

[High fluid levels detected, fluid is unknown] [Subject needs immediate attention, unknown fluid detected]

"Hmm, so it's fluid causing the swelling. I'm not surprised. But what is it?" Veloski thinks aloud to himself. But before they can figure out how to extract a sample, Tiffany interrupts rather bluntly. "E-Excuse me? Can I get help already? I-I-I am so horny, please! Let me cum, please!" she cried. Her voice was a conflicting tone of sexual frustration and on the verge of tears. "Doctor, well...how do we help her?" his assistant asks. Veloski strokes his chin, this was beyond his training and knowledge, Tiffany needed release, but this was not on his level of professionalism. "That is on you, find a way to help her reach stimulation. I'm...going to give you freedom on this, whatever she needs, do it. We will test again tomorrow,"

His assistant gulps, she had never pleasured another female before, aside from herself. What was going to do? She grabs a pair of latex gloves from her pocket and puts them on. As she was doing this, Tiffany sees the assistant putting on gloves and realised that she was getting help. With all her might, she pushes her legs up, leans on her swollen belly but she gets stimulated by the feeling of the mat on her belly's skin. She tingles, her crotch was damp from her being so horny from all of this. The assistant turns around and sees Tiffany in position already. The assistant blushes, Tiffany's sex in plain sight and extremely wet. "H-Help," is all Tiffany can say.

The assistant reaches out to Tiffany's pussy. The heat was intense! She closed her eyes, and imagined it was herself. Tiffany yelps, as the assistant's fingers caress her clit, and slowly worked her fingers inside. Luckily for the assistant, Tiffany was so stimulated already, she didn't need much. Tiffany's pussy throbs, as she cums and moans loudly. Tiffany completely soaked the assistant's hand in the process, impressing her of all things. As Tiffany always does, she soon passes out on her bloated belly. The assistant walks back over to the observation office with a smirk. "She's quite impressive after all,"**