You went to the dentist for a check up, your dentist was a tall man, after checking your teeth, he says something that confuses you

Dentist: Ooo yikes.. we'll have to put you under for this~

The dentist puts a gas mask on you, as you fall asleep

When you come to, you couldn't move, you were strapped down to the dentist chair, you felt a cold shiver as you see you're in just you underwear, your feet were in stocks, tied together by the big toes, as you tried to say something, you could only weakly squeak, before yawning, you had a gas mask on still, the gas given to you was making you really calm, when you heard him talk

Dentist: Now now~ Looks like you're mine now~ Don't worry about all this~ not like you can with the gas hehe~

You couldn't protest, you just accepted this, then you heard the sound of spinning tools, the dentist had an electric toothbrush and ultrasonic scaler in his hands, as he sits by your feet, you hear something behind you move as cold air touches your armpits