Before I realize it, what was in his hand is inside of me. It's hard, no thicker than the Dr. Ellis' two fingers, but round, and longer. As he slid it in I felt bulbous portions of it running up and down the shaft, an attempt to add extra stimulation. It was long, longer than Dr. Ellis' fingers, reaching a new depth of me he couldn't earlier. Dr. Ellis' hand was holding onto a small end of the object , holding it against my lips as he kept it pushed in.

The feeling of the cold smooth texture of the round flayed end pressed against the heat of my pussy; it's glass, a glass dildo is what he put inside of me. Why would a doctor even have this in his office?

He pulls it back with ease, the smooth glass offering no resistance with the special lubricant he applied on it. As he slowly pushed it back in again Dr. Ellis starts to make small circles with the toy, trying to find a special spot to hit like he did with his fingers. Instead of pleasure though there is discomfort. The hard glass is unyielding to my walls, I wince as glass pinches flesh between it and my pubic bone. I let myself give out a mild growl through my gag, trying to convey the feeling of pain.

Dr. Ellis looks at me but misinterprets my message. "Patient is frustrated from the slow introduction of new sexual stimuli.".

NO! I'm frustrated but it's because I'm stuck here, naked and bound as he toys my pussy and it fucking hurts. I can't believe he thinks so much of himself. But he moves to test his new hypothesis, starting to push and pull the toy faster, his hand clenched around the end of the toy slams against my pussy as he attempts to fuck me with it. But for every few pumps of the glass dildo that feels good, he also manages to get the angle wrong and it hurts, sending sharp pains that override any feelings of pleasure.

I have to let them know, they have to stop, otherwise this will just be five minutes or actual torture. My throat let's out gritty noises, the gag stiffling my sound, my fingers curl and my nails start digging into the cushioned arm rests my wrists are bound to. Mark notices, he has always been good at knowing when something hurts, and he seems to know that this isn't good.

He speaks up for me, "Doctor, can you stop for a moment I think the toy is hurting her."

Dr. Ellis' hands come to a stop with the toy fully inside of me, his hand letting go of it. There is no chance of it slipping out, the table being tilted back and raising my hips ensure gravity will hold it inside of me. I glare at him from my end of the table as he looks towards me from his spot in front of my hips and he seems to come to the simple realization. He frowns a bit and stays silient as he pulls the glass toy out of me, as if I'm spoiling his fun.

"Dr. Miller please reset the timer, we will try with the silicon one."

Fuck I thought, another test? Why can't this just be done? They can't keep doing this to me forever. Maybe if I keep growling and pretending to be in pain they will let this be over.

I can hear Dr. Ellis fidgeting with items on the cart that remains out of my eyesight. "This one is larger, but its silicon material should be softer and cause less discomfort," he announces to the room.

Dr. Miller starts the timer anew as Dr. Ellis spreads me open again, pressing the new object against my hole. The moment its broad tip presses against my entrance, I know this will be different. Where the glass toy had been cold and impersonal, this one promises a fullness that terrifies. This feels warmer, more alive. Dr. Ellis applies gentle pressure, the thick head of the new dildo nudging against my opening until it yields. My pussy clenches instinctively, resisting the intrusion, but he doesn’t stop. He pushes forward slowly, inch by agonizing inch, the ridges along its shaft dragging against my sensitive inner walls. The sensation is overwhelming—an aching stretch that makes my toes curl and my breath hitch, it's as if Mark himself was entering me, the fullness of toy widening me to my limits.

As the dildo sinks deeper, I can feel every detail of its design. The ridges are deliberate, each one a cruel tease that rubs against my most sensitive spots in ways that make me gasp. My body betrays me, responding with a traitorous flicker of pleasure despite my shame and humiliation. Dr. Ellis' movements are methodical, almost clinical, but the effect is anything but. He pushes the toy to the hilt, burying it fully inside me, and pauses for a moment, letting me feel the sheer fullness of it, it's width opening my hole and my walls wide, with a deepness that not even Mark achieves. My hips twitch involuntarily, trying to adjust to the intrusion, but the straps hold me immobile, forcing me to endure every second of it.

Then, without warning, he begins to move. The dildo slides out almost entirely before thrusting back in with a force that makes me cry out through the gag. The pace is slow but relentless, each stroke driving the toy deep into my core, the ridges scraping against my inner walls in a way that sends jolts of pleasure rippling through me. My body clenches around it helplessly, my pussy desperate to milk every ounce of sensation from the brutal rhythm. The wet, slapping sound of the lubricant on the toy moving in and out of me fills the room, a constant reminder of how utterly exposed and vulnerable I am.

He increases the speed, moans escape my throat as the pleasure builds to an unbearable peak. I’m teetering on the edge, my body tensing and pulling against the restraints, when he suddenly slows down, almost stopping entirely. The sudden lack of stimulation is torturous, leaving my nose panting with anticipation.

But Dr. Ellis isn’t done. He pulls the dildo out completely, leaving me achingly empty, only to guide it back to my entrance and slams it back in with a force that knocks the air from my lungs. This time, there’s no mercy. He fucks me with it hard and fast, the ridges grinding against my G-spot with every thrust. I feel like the whole table is shaking with the force of the dildo he thrusting in me, my breasts bouncing with the rhythm of his hand pushing it in and out of me.

I can't deny it, right now this is too much, it's too good, I don't want this test to stop anymore, I don't want the doctor to stop fucking me with the toy, I need it, I need to cum. Each shake of my boobs back and forth reminds me of how ignored they feel, how I wish Mark would walk over and play with them. But this is supposed to be a medical test, not some fantasy.

Fantasy or not though it's going to happen, I'm going to cum, I feel it building up deep inside of me, like I'm a wind up toy about to be released. I shut my eyes and imagine what Mark and Dr. Miller must be seeing. My pussy in the air with my knees pushed back hiding no details as Dr. Ellis continues to pound me with this large toy. I can practically envision them leaning in watching my pussy's lips wrapped around the toy, quivering around it as it moves in and out of me. They're watching, they're going to see it.

The climax hits me like a freight train, sudden and violent, tearing through me with a force that leaves me gargling on the gag. My body convulses, my pussy clenching around the toy in desperate pulses as wave after wave of pleasure crashes over me. It’s too much—far too much—but there’s no escape. The restraints hold me in place, forcing me to endure every agonizing second of ecstasy until I’m left trembling and spent.

Dr. Ellis pulls the dildo out, leaving me feeling hollow. My pussy is still convulsing, trying to find what is now missing, given no time between climax and it's absence it's almost as if Dr. Ellis wants to punish me for rejecting the first dildo.

Dr. Miller notes the time. "Two minutes twenty-one seconds."

"A significant decrease in the time taken to climax from the manual stimulation earlier. Patient's reaction also seems stronger, but the clearness of applied lubricant indicates still no secretions from patient. At this point this may indicate a sexual dysfunction, but further testing will verify."

Further testing? There is still more...is that a good thing or a bad thing? My mind can't seem to decide. Wait no this all wrong. I shouldn't be here, still bound and gagged like an experiment for a mad scientist. The only person who should touch me like this is Mark, and yet part of me wants another test, wants to find out how else they can make me cum hard.

My thoughts are disrupted by Dr. Ellis' hand spreading me open again. "Dr. Miller please document the post-test results again.".

Dr Miller is there quickly, like he was looking forward to this, his hands already holding the camera up angled down towards my spread sex. A camera flash, then he makes an adjustment, zooming the camera in, another flash, how much detail do they really need? Every small detail will be embedded forever, not just on the camera but on younger Dr. Miller's memory too. Dr. Ellis picks up his measurement tool yet again, holding the small measuring tips to my hole as he does his best to widen it with his fingers. I can tell, it's not like before, it's been forced open, forced to receive the brutal stretching and thrusting of the dildo used on me.

"6.5 centimeters, another increase from the first test.". He places the tool down and inserts his finger, finding no resistance as he explores around inside of me. "Patient's vaginal opening and tunnel seem to have no issue responding normally to sexual stimuli with the exception of the lack of self lubrication. Mr. Thompson, can you verify things have progressed as you would normally expect at home?"

This time he hands Mark a box of gloves, making sure he doesn't forget. Mark gloves up a single hand, squeezing lube onto his fingers. First he enters with a single finger, but he pulls back when he feels how I've loosened, he adds two more fingers, and suddenly I'm full again. He is moving them around inside of me, exploring the stretched state of my pussy. His familiar fingers are a welcome sensation, but Mark this is too much, it's like you're fingering me right now in front of these doctors. My hard breathing turns to moans, any resistance I had to stiffle the noises I make is gone, I've given in to the pleasure of their testing, and now I feel like I would give anything to have Mark take me right now.

"Wow, she is almost never like this. It's a rare occurrence that I could fit this many." He pulls his fingers out and a part of me wants them back, I'm not sure if Mark was teasing me on purpose or if my pussy is simply that desperate for more attention.

Dr. Ellis adds his analysis, "Interesting, this may indicate patient is in a higher state of sexual arousal than she normally obtains during sexual activity, highlighted by her relaxed state. Let's move on to the last test."

Good, the last test, another five minutes and I'll be done, but what's left? They've already fucked me with fingers and toys, what else could they possibly try? Part of me could guess the answer, I could feel it, throbbing at the top of my pussy. It has been ignored since the proper pelvic exam when the doctor touched it. But I hope I'm wrong, even Mark knows not to touch it, he knows it's too sensitive for me. If the doctor attacks me there like he did inside of my pussy, I may go insane.