Cleaning Teeth

I take Sandra home from a cafe' on Saturday. We had gone out for smoothies and talked about what classes we were thinking of taking for next semester. It was Halloween and kids were parading down the street in costumes in groups or with their parents.
We enter the house and I lock the door behind me before closing the drapes. We left a bowl of Candy for the kids by the door in case they came by. Sandra said she'd meet me in the basement and I headed down.
The medical table had been hidden from view by a folding screen. The newest addition to the basement was the Dentist Chair, complete with an over light, and tray of tools. I put on the white coat and look at what I'll be using: A Dental mirror, Dental Gag, Pick, Water and Air Wands, and the thin camera they use to view the mouth and record what was there with a small screen to view it too. I then notice a small tank with a gas mask. The title on the tank said, 'Sleep Gas'.
'Oh, this is going to be fun.' I thought, as Sandra came down in a skinny top and yoga pants.
"I'm sorry to impose, " She said, acting like a shy girl. "But I was wondering if you could fit me in. I really need help."
"I was about to close up," I said, acting surprised. "What's wrong?"
"My jaw hurts terribly...I think I cracked something."
I pretend to think. "I suppose I could look..."
"I can pay you! Please, help me...!"
"Alright, alright calm down. Of course I'll help you, please sit down."
Sandra sits in the chair and I turn on the light before positioning it over her mouth. I raise the chair before leaning it back and slip on rubber gloves. "When did you first start having pain?"
"Yesterday."
"I see. Well then open real wide."
Sandra does and, using a dental mirror, I explore her mouth. So pink and moist...
I pretend to find something. "You have chipped something. I can fix it."
"Doctor, I'm not of pain." He bottom lip trembles.
"Don't worry, I'll have you sleep through it." I bring over the tank and have her hold the mask over her face. I knew the gas tank was empty...I had other ways of making Sandra sleep.
"Razz-Berry Rain."
Her eyes glaze.
"Sandra, you will think you're breathing Sleeping Gas. After five deep breathes you will sleep until I bring you out of it. When I count to three you do as I said. 1...2...3!"
She blinked and breathed deeply five times before she fell asleep. I put the mask and tank back before I made the chair go all the way back so Sandra was flat.
I raise her arms and remove her shirt, revealing her white bra. I remove her pants next.
I use my fingers to pry her mouth open and marvel at her wet cavern, then I use the dental gag to keep her mouth open. I play with her tongue and pull it out so hangs over her bottom teeth.
Next, I unclasp her bra and her breasts fall free. I take the dental pick and lightly touch her nipples. She moaned after a few more times and I put that back. Next I unzip my pants, then stand over her on my knees before I shoved my member into her mouth.
The warm flesh of her throat was heaven.
I kept going for three minutes before pulling out and moved lower. I removed her underwear and say her moist pussy. Ready for me to take it.
Sandra still thought she was a virgin, and wouldn't know that I took her again. I spread her legs far apart...