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2026-05-18
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a surprising dentist visit

Summary:

Ethan's dentist is a little too obsessed with his teeth and mouth...

Work Text:

Liam Sullivan sighs as he sits at his desk. It’s been a long day, and he has one last patient to see. Who was it again…? Hopefully someone who’ll make it quick. His dental hygienist had to head home early due to illness, so he has to perform both her duty and his own for the final patient. Lord knows he’s exhausted enough already, but alas. He makes his way over to the room the patient is waiting in, and is pleasantly surprised to see a familiar face sitting on the examination bed.

“Ethan! It’s been a little while since your last visit, hm? How old are you now? You look so much older.” Ethan has been coming to Liam’s clinic since he was a young boy, but he hasn’t gotten a checkup in a little while.

“Hi Dr. Sullivan,” he smiles. “I”m 16 now. And yeah, sorry, my mom kept forgetting to set up an appointment.”

“Well, no worries. I’ll be extra thorough. Have you been taking good care of your teeth? Any concerns I should know about? You were always pretty diligent if I recall correctly. Hopefully you’ve been keeping that up,” Liam says as he washes his hands and slips on blue latex gloves.

“Um, I don't know. I think my teeth are in good shape,” the boy says softly, clearly a little on edge. Dentist visits always made him a little nervous. “I brush them.”

Liam smiles as he surveys the boy, noticing how his eyes dart around the room. Cute. He pulls his chair closer to the examination bed, bringing a light down to shine onto Ethan’s mouth. “Why don’t you go ahead and lean back for me and get comfortable, alright? Lena isn’t here today, so I’ll be doing what she usually does.”

Ethan lays down, albeit rather stiffly, eyeing the dental mirror in Liam’s hand anxiously. Liam notices his tense posture immediately. “Relax, kiddo. Can you open your mouth for me? I’m just going to go ahead and check your gum health and see if there are any issues,” he says softly. He’s used to Ethan’s medical anxiety by now. And he knows how to handle it. Ethan opens his mouth, and Liam looks inside. Unsurprisingly, the boy’s teeth look very good. He hooks a finger in Ethan’s mouth to pull his cheek away from his back teeth and runs the index finger of his other hand down the gum line. “Just checking your gums. Everything looks good so far, Ethan. I’m impressed,” he murmurs. “I can see that your wisdom teeth are coming in. Has that been bothering you at all?”

“Yeah. It kinda hurts,” Ethan says, although it’s muffled by Liam’s hand.

“I see. We can get them removed if it’s really bad, but I’m not seeing any crowding, so I’m not going to say that you have to. But you and your mom can talk about it and let me know, okay?” He rests his finger on the back end of Ethan’s gums, right where one of his wisdom teeth is beginning to protrude. “Does this hurt?” he asks softly as he presses down on the soft tissue, the latex sliding over the wetness of his inflamed gum.

Ethan whimpers and tenses at the sudden flash of pain, almost biting down on his finger. Liam’s heart jumps excitedly as he feels the sudden tension in the boy’s jaw. “It’s sensitive, hm?” Liam says, looking at Ethan’s face with feigned concern, as if observing whether the boy was in pain or not. Rather, he was captivated by the way he looks with his jaw forced open, saliva pooling in his mouth. He pulls his fingers from his mouth, giving him a second to breathe.

“Is that normal?” Ethan asks quietly as he swallows.

“What, your wisdom teeth? Perfectly normal for a boy your age, not to worry,” Liam replies soothingly. “I’m going to remove the plaque now, kiddo.” He grabs his hand scaler and begins to scrape at the small buildup of plaque in the space right above his gums.

“Plaque? Why? Did I not brush enough?” Ethan asks, the anxiety creeping into his voice.

“This is standard. It’s impossible to have no plaque. Your teeth are great,” he repeats. Ethan relaxes slightly, but the scraping of Liam’s scaler is clearly giving him some anxiety, and his eye twitches with obvious tension. “You’re being so patient, Ethan. Most people would be squirming, but you’re taking this so well,” he adds gently. Ethan’s ears turn a light pink, the praise obviously impacting him. Even as saliva begins to pool in his mouth again, he doesn’t ask to stop. He wants Liam to praise him for waiting. Liam smiles to himself, satisfied with Ethan’s craving for his approval. When he’s finally done with the plaque, he sits back, placing the tool on another tray for sanitization.

“How are you feeling, kiddo? You did very well. I’ll just take your x-rays and then we can be done, if everything is in order.”

“I’m okay, Dr. Sullivan. But, um… I wanted to tell you that in the mornings my throat really hurts. Like, when I swallow. Is that… is that normal?”

“Your throat? That’s interesting. Hm, are you doing anything that could be irritating your throat?” Liam asks slowly. The boy reddens and starts fidgeting.

“No, Dr. Sullivan,” he mutters.

“In the morning, huh? Maybe you have sleep apnea. Sometimes, breathing with your mouth at night can make your throat all raw, which can make it hurt when you wake up. Does that sound plausible to you?” the doctor says.

“Not really, Dr. Sullivan. I sleep quite well.”

“Well, if you don’t mind, I’ll take a look,” Liam says as he exchanges his wet gloves for a new pair of clean, dry, gloves. He presses his finger against the boy’s Adam's apple, which bobs as he swallows at the contact. Liam’s heart thuds again as he stares at the cartilage hungrily. “Does this hurt at all, kiddo?”

“No, Dr. Sullivan. It’s, umm.. it’s mostly.. inside.”

Liam smiles, trying to contain the glimmer of excitement that’s starting to rise through him. “I see… well, not to worry, I’m sure we can make sense of this. I’m going to have to check the insides of your throat, but you can just let me know if it gets too uncomfortable, alright?” He gently slides his index finger back down to the base of his mouth. Ethan gags immediately as Liam’s latex-covered finger brushes against the uvula. “Good gag reflex, kiddo. Very important thing to have.” Ethan’s throat squeezes the man’s fingers, and he’s practically finger-fucking his face at this point, but he’s doing it with such clinical calmness that it feels normal and necessary. “Your throat is probably bruised. Does this hurt?” he asks softly as he thrusts his finger into his mouth. The way he’s speaking so professionally contrasts with the way he’s violating Ethan’s mouth. Ethan nods to the best of his ability, which is slightly limited at this vulnerable position.

Liam’s gaze drops down to the way Ethan’s lips are stretched around his hand, glistening with saliva. His eyes have begun to water, and he’s practically drooling at this point. What a mess. Liam feels a heat rise in his stomach at the boy’s expression.

Ethan knows that this situation can’t possibly be proper as he repeatedly gags around his dentist’s finger, but the man is just so handsome and professional, he can’t help but trust him. Even as he struggles to breathe. He lets out a helpless whimper, but he’s trying not to move, trying to be good and well behaved.

The man feels a rush of heat in his stomach as he hears Ethan whimper. “You’re such a good, brave boy, Ethan. You’re doing so well for me,” Liam whispers, smiling as he sees the blush spread across Ethan’s face. “I know it probably hurts a little. But I just need to evaluate the state of your soft tissue,” he lies. He’s in heaven right now, looking at the drooling mess laying on his examination table. A surge of affection surges through him as he watches Ethan struggle to catch his breath. He knows the boy must be confused, knows this must feel wrong. But he also knows that the trust Ethan places in him is something he can use. He finally pulls his hand from his mouth, leaving it empty and watching Ethan try to recover, gasping for breath. “You handled that well, kiddo. Good job. You might be the best patient I’ve ever had.”

“R-really?” Ethan stammers, blushing. If he thought what just happened was weird, that feeling melts away as the praise and validation fills him with joy. Not that what Dr. Sullivan does to him really matters. He’d let him do anything he wants to him.

“Well, I’ve established that your throat is definitely bruised. There could be a couple causes, but it shouldn’t be anything to worry about. Some warm tea and ibuprofen will help with the painful sensation. If it persists, please come let me know.” Liam says, again taking off the wet gloves, disposing of them, and replacing them with new, clean ones. “Why don’t we take a break before I take your x-rays? Would you like some water?” he asks.

“Yes please, Dr. Sullivan,” Ethan says, sitting up on the bed. As Liam walks away to get the boy a cup of water, Ethan squirms. Something is on his mind. “Um, Dr. Sullivan… I was wondering how old you are.”

Liam smiles, turning back to look at the boy as he fills a paper cup with water from a dispenser. “Curious, hm?” He turns fully to face Ethan, leaning against the counter casually. “I’m 38. I finished dental school when I was 26, and you started seeing me about a year into my career, so it’s been what, 11 years? Isn’t that nice.”

Ethan looks down, fidgeting. “Oh, cool.”

Liam chuckles as he watches Ethan’s cheeks deepen into the familiar shade of red. He passes him the paper cup. “Here you go. This should help with the soreness,” he says, watching Ethan’s throat as he swallowed, wanting to reach out and press his palm against his neck to feel it move. “There you go. Feeling better?”

“Yes, Dr. Sullivan.” He pauses, trying to think of a question to ask him. He wants to talk to the doctor, get to know all about him. “So… how long did school take you? Like, dentist school or whatever?”

“8 years,” Liam smiles, finding Ethan’s curiosity endearing. “4 years bachelor’s, 4 years dental school. Then I had to pass my examinations to get licensed. Many late nights, but I consider it worth it. I love what I do.” He lets the statement hang in the air for a minute, his eyes drifting over Ethan’s face. “Patients like you make it worth it,” he says, more softly.

“Like me?” Ethan repeats, starry-eyed.

“Yes, of course. You’re an amazing patient. And you take such good care of your teeth, I love to see it.” He pauses. “Well, are you ready to get back to it?”

Ethan nods, and Liam puts on fresh gloves and grabs a sensor. “I’m taking a bitewing x-ray, so I’m going to need you to bite down hard on this and hold it in place. Can you do that for me?” Liam asks. When the boy nods, he slides the sensor in Ethan’s mouth, his gloved fingers sliding past his lips once again. He lingers there for a second before pulling his hand away and positioning the x-ray tube head next to Ethan’s cheek. “Just stay very, very, still for me,” he says softly. He takes the first photo, then repositions it so that he can get photos of his whole mouth.

“You’re all done. Perfect shot,” he murmurs, satisfied as he leans in and pulls the sensor out, setting it down. “You can come here to see the images, if you’d like,” Liam invites as he stares, fixated on his monitor. “Look at that,” he says, his gaze shifting between the screen and Ethan’s eyes. “Everything looks exactly as it should. You really do have a beautiful mouth, Ethan. It’s… actually quite remarkable.”

Ethan glances at the screen, but is mostly looking at the dentist's face, watching him admire his teeth. “Are they really that good?” He wants to hear Dr. Sullivan compliment his teeth again.

Liam nods, exhaling. “They’re a masterpiece. Give me a moment, kiddo, I’m going to print these out. For… your records. Completely standard.” In reality, he’s printing them out so he can jerk off to them later, but Ethan doesn’t need to know that. He places the printed images on his desk and returns to see Ethan back on the examination bed, swinging his feet. “Well, you’re all done, kiddo. I’m so proud to see how well you’ve been doing with your dental care. Most boys your age have had at least one cavity before, but you’re special.” Liam leans in ruffle the younger one’s hair affectionately. “I’ll just charge your mom’s card, so you’re all good to go.”

Ethan nods, but he lingers there. “You don’t have any more appointments, right? Because, um… my mom isn’t here yet, so I was wondering if I could just wait here. With you.”

Liam sighs, running his hand through his hair, looking down at the smaller boy. “Well, alright. Sure.” He slips off his long white coat hanging it up and, now wearing just a white button up and black slacks. “So, when is she going to-”

Ethan cuts him off. “You know, my mom said I should shave my canines down. Because, like, they’re all pointy and stuff.”

Liam freezes, the very thought of altering the sharp, natural beauty of Ethan’s teeth making him furious. A drill touching those beautiful canines, just to make him look like everyone else is an affront. “What the hell?” he says slowly, not looking away from Ethan’s mouth. “Never. Why would anyone want to get rid of something so perfect? God, don’t listen to her. Listen to me. You keep them exactly the way they are. Do you understand?” he says sharply.

Ethan nods. “Okay Dr. Sullivan. But they’re so sharp, isn’t it weird? Like, sometimes when I bite my lip, it bleeds. Is that normal?”

Liam sighs. “It’s natural, kiddo. Humans are animals, after all. In older times, we would use them to tear through meat.”

“Oh, I didn’t know that. You should… um… feel my canines. Because they’re so sharp. Like, you should touch it so you understand what I’m talking about,” Ethan blurts, his face turning red.

Liam’s eyes narrow and he turns and locks the door. He steps forward, leaning over Ethan. “Open up then, kiddo.” He slips his finger, no longer gloved, into Ethan’s mouth and runs it over his top and bottom canines. “You’re right, they are quite sharp.” But he’s distracted. Distracted by the way Ethan is looking up at him, so adoringly. “It’s a good thing, though. Your teeth are perfect. Don’t worry about stuff like this.” Ethan squirms, blushing at his praise predictably. He wants something from Dr. Sullivan, but he doesn’t know how to get it.

“You also have nice teeth, Dr. Sullivan. I mean, you’re really handsome. You’re the… the most handsome man I’ve ever seen,” he blurts shyly.

“The most handsome?” Liam repeats, amused. “You’re a sweetheart.”

Ethan’s knee is now bouncing so fast his calf is burning. “T-thank you, Dr. Sullivan.” He smiles, but not like he usually does. This is an awkward, toothy smile. To show off the teeth Dr. Sullivan thinks are so perfect.

Liam’s eyes trail over Ethan’s mouth appreciatively. What a cute smile. He leans in slowly, looking down at Ethan, waiting to see if he’ll fill the space like he so clearly, desperately wants to. But he doesn’t. Ethan just closes his eyes and waits, hopes and prays. Liam stares at him for a minute, amused by his passivity. He reaches up, painfully slowly, and takes the boy’s jaw in his hands, holding it and forcing him to look up into his eyes. “You want this, don’t you?” he grins hungrily, but doesn’t even give Ethan a moment to answer before leaning in and kissing him.

It’s not a romantic gesture, it’s pure hunger and obsession. He runs his tongue over the smooth surface of Ethan’s teeth methodically, lingering on the tips of his canines, savoring the sharpness. He hooks his thumbs on Ethan’s cheeks, pulling them apart so he can reach his molars too, caressing them with his tongue. “So perfect…” he groans.

Ethan is shivering with excitement, his hands gripping the sides of the examination bed, knuckles turning white as Dr. Sullivan invades his mouth. “Doctor…” he whimpers pathetically.

Liam exhales slowly. “You’re such a sweet boy. What, you need your doctor to take care of you? Is that it?” he says condescendingly as he wedges himself between Ethan’s legs. The examination bed is elevated, leaving his legs dangling and his crotch at about the same height as Liam’s.

Ethan pulls Liam back down to his lips, kissing him normally this time. At least for a moment, until Liam starts rubbing his tongue against Ethan’s teeth again. The sound of their saliva and Ethan’s panting fills the otherwise empty office. The boy hesitates before biting Dr. Sullivan’s lower lip with his pointy canines, sinking in until he tastes blood. Liam flinches and grabs Ethan’s jaw, wrenching it away. “You’re trying to hurt me?” He grins, licking the blood off of his lip. “Good boy. Use them on me, sweetheart.”

Ethan leans in and frantically bites his lip, causing more blood to well up and drip down his chin. “Fuck…” Liam groans, any sense of his professionalism gone. “You’re so perfect,” he repeats. A sudden twitch ripples through his frame. He’s so hard that it hurts, his dick is aching, throbbing with need. He’s practically on the verge of orgasm just from the sting of Ethan’s canines. He pulls back, his eyes hazy as they zero in on Ethan’s mouth. He can’t hold back anymore. He fiddles with the button of his slacks, the sound of the zipper being pulled down echoing through the quiet office.

Ethan looks on, aroused and shocked. Liam’s hand is on his dick, Liam’s jerking off just looking at him. “Ngh… don’t act so surprised,” Liam pants. “You’ve been such a good boy… fuck, just… your teeth are just so…” he groans. “Just… get on your knees, sweetheart. Be a brave boy for me, mm? Be a good… ngh… good boy and open your mouth for me. You could take my fingers so well, I know you can… uhhg… take my cock too. Right, sweetheart?”

And what else could Ethan possibly do? When Dr. Sullivan asks him to do something, he’ll do it. So he does. He slides off the examination bed, getting on his knees in front of the man, letting him hold his head steady and slide his dick into his mouth. It’s big. Way bigger than the fingers, way bigger than anything else that has ever entered his throat. Dr. Sullivan pushes back into Ethan’s throat, making him gag around it like before.

“Mmmphh…” Ethan moans. He lets the tips of his canines graze the man’s shaft, looking up at his face, watching pathetically as Dr. Sullivan groans and leans his head back. Liam pushes himself into the boy’s mouth as he looks down and sees how his lips stretch around it.

“Don’t be so careful. Use them,” Dr. Sullivan commands, and Ethan begins to apply more pressure with his teeth. “Fuck, kiddo. Just like that, that’s it,” Liam pants, his voice gravelly. He’s sweating now, his collared shirt clinging to his skin as he fucks Ethan’s mouth. He loses all sense of subtlety, grabbing the boy's hair as he begins to thrust with a frantic need. “You’re such a good boy,” he groans,

Ethan is hard too, one of his hands palming his dick in his pants as he sucks Dr. Sullivan off, whimpering dumbly. Liam’s already lost all control, teetering on the edge until he falls off the precipice and climaxes. He thrusts one last time and lets out a long, broken groan as he comes in Ethan’s mouth, coating his teeth and shooting it down his throat. He exhales slowly as he stands still for a minute, letting Ethan swallow around him.

He finally pulls back, his breath ragged and heavy, looking down at Ethan. His hands are in his pants, his cum is dripping down his chin. It’s practically enough to make him hard again. His voice is back to the familiar, soothing rumble. “Look at you,” he says gently. “You took it so well. My beautiful boy.” He leans down and kisses him, licking his mouth clean as Ethan moans.

“Beautiful…” he repeats, stroking himself faster. “I did good, r-right..?

“You did excellently,” Liam smiles.

Ethan moans, his back arching and his face flushing as he comes too. The office is quiet once more.