Dr Jeon starts meticulously checking Taehyung's teeth, one by one, while the desperate, abandoned cock just pulses in the cool, air-conditioned air. The worst part – or perhaps it's the best part – is that Taehyung knows with absolute certainty that this is deliberate, to make him even more needy than he already is.

Knowing Jungkook's plan does not ease the building tension. Taehyung's whole being becomes gradually more and more tinted with a sense of lustful desperation, the longer the diligent dentist carries on with his check.

When Jungkook leans down to see into the mouth, it's too easy to imagine what it would look like if he were doing that to kiss Taehyung. Every tiny contour of those soft lips, every tiny movement of his face, his eyes, the way the hair falls down over his brow. Damn, the man is a beauty.

Taehyung's gaze strays further down. He admires the sharp jawline, the strong neck, the promise of muscle in the small sliver of skin that is showing where the shirt and tie have loosened a little. The thought of what he already knows is hiding underneath is enough to have Taehyung salivating, but what about even lower than that...? He can't stop thinking about it.

When Jungkook leans away to get another tool, Taehyung twists to the side to check out the lap, in the hopes that perhaps something is showing. But, the only thing he does is give himself away.

"Dr Kim, your focus is not on the examination," Dr Jeon chastises and Taehyung freezes like a deer in headlights. What he wants is so close, yet so far – in his moment of desperation, Taehyung can't stop the pitiful sound that drips out of his mouth with a dribble of saliva.

"Oh dear, what a mess..." Dr Jeon says, fascinated by the sight of the spit dripping out. "I guess this is one of the many reasons why we have dental nurses?" He smiles and it's somehow a little evil.

A gloved hand grabs Taehyung's jaw with the thumb pushing into the wet mouth, it moves in and out, swimming in the moisture, spreading it all over the lips. Jungkook lets out a rough groan, the first outward sign that he is at all affected by what's going on. The sound shoots directly down to Taehyung's cock and he wants to hear more, he wants to do well. His tongue flirts with the smooth, gloved finger, making promises he can't currently deliver with the equipment lodged in his mouth.

The single finger turns to two, pushing deeper, then three. Taehyung's mouth is soon full of fingers, pushing softly – but again, despite a degree a softness, there is no negotiation in the movement, it's like a demand, Jungkook just does what he wants and Taehyung takes it.

But he wants more, more than fingers.

As if hearing Taehyung's thoughts, Jungkook stands up and unbuttons his white coat.

He unfastens the black slacks and pulls out his cock, his beautiful, wonderful, hard-as-rock cock and Taehyung moans, just at the sight of it – it's perfect, just like he'd imagined, thick, heavy and veiny. His tongue flicks out and Jungkook rewards him with a damp tip to lick. The round hood slides along the tongue, deeper and deeper until it nudges against the back of Taehyung's throat. Pride fills him when he doesn't gag.

"Fucking hell..." Dr Jeon murmurs under his breath, thrusting into the open cavity so perfectly positioned and provided, just for him. Taehyung does what he is able, but the angle is all wrong and the equipment is really getting in the way. He whines a little, it's really rather pathetic.

"Hm. You're right, it's in the way..." Jungkook mutters, unlocking the mechanism. He chucks the gag onto the work surface further away, and finally Taehyung's mouth is free.

He goes for it like a man starved, sucking in the shaft with something akin to fury.