Oh god, not again

I felt a finger brush my anus and then begin to burrow there, lightly. I felt a thrill of fear somewhere deep in my loins.
'So here's what we're going to do now. I'm going to show you how to put on this strap on and then you are going to fuck your husband. While you're doing that your husband is going to pleasure me orally. As long as I'm satisfied I want you to be gentle, but the moment I feel him slacking off I want you to really pound him. Be merciless. This is his first time being penetrated and therefore the best time to leave a mark, when the experience is still new and he's not ready for it.'
'I understand.'
'Good, so let's just strap it on you.'
'Julian', I could hear her voice whispering in my ear as she ran her fingers through my hair, 'I'm afraid I don't have any lubrication here so this might become rather painful. But I'll give you a chance to lubricate the strap-on yourself.'
'Ms. Chance, come here please.'
I saw my wife walking into my field of view. The strap-on was red and partially transparent. It bore a rather strong resemblance to a fairly large penis. So large, in fact, that I was worried if I could fit it in.
'Now Julian I want you to take that big red cock in your mouth and suck on it like you mean it.'
I didn't know exactly what to do. Jennifer came and stood directly in front of me the strap-on almost touching my lips.
'Go on Julian, you know what to do.'
I felt her hand on the back of my head pushing me forward until my lips touched rubber.
'The more you lubricate it now the less it will hurt later. Come on now, you know you want to.'
Jennifer smiled above me. I felt something push into me from behind. I didn't know what it was but it was slightly painful and made me lurch forward some more. I felt the strap-on in my mouth. I started licking it.
'Open your mouth Julian,' said Dr. Strange in an impatient voice. She jammed my mouth straight onto the rubber cock until I almost choked.
'Now suck it. Suck it like you want it to come in your mouth.'
I sucked it. It was a strange feeling, having an artificial penis in my mouth, feeling all the ridges and realizing that was how Jennifer felt when she gave me head.
'That's a good boy. Move your head up and down.'
I realized that the longer I was going to do this the more time I would have before the next punishment so I decided to do a good job. It was humiliating to be in this position, watched by two women, but I preferred it to the pain that I knew would come after. So I licked the glans slowly and took it into my mouth and sucked it and licked the stem and gradually felt myself getting into the act despite myself.
Dr. Strange's fingers curling into my hair and forcing it away from the strap-on stopped my act.
'That's enough.'
Jennifer and Dr. Strange traded places. Now Jennifer was behind me doing something I couldn't see and Dr. Strange was in front. Dr. Strange released the chain that was holding me bound to the table slightly and I felt Jennifer's cool hands taking me by the pelvis and pulling me back. Dr. Strange took her boots off, pulled her skirt up to her hips and sat on the table right in front of me. Her huge pelvis blocked out the rest of the surroundings. Her nether lips were completely smooth and in a way all the more intimidating for it. I felt Jennifer's strap-on touch my anus and I started forward, which brought my nose into direct contact with Dr. Strange's vagina. I half expected it to smell of a hospital disinfectant of some sort but it was odorless.
'Good. Now lick. Do a good job.'
As my tongue tentatively thrust into her vagina I felt Jennifer penetrate me authoritatively. The strap-on forced my anus wide open and then rammed its way in painfully. The tip was deep inside. I groaned with agony.
'Shhhhhhhh…you're doing well. Don't stop.'
My tongue glided over Dr. Strange's vagina, my saliva mixing with her juices. I heard her breath quicken and pushed my tongue deep into her, then twirled my tongue around her clitoris. Dr. Strange let out a long, low moan of satisfaction, took hold of my hair in one hand and pulled it painfully.
'That's a good boy.'
Dr. Strange's mounting excitement evidently aroused something in Jennifer too because she started pumping in and out of me faster. My saliva must have dried up because each thrust was more painful. I found I could not hold out any longer and let out a cry of pain.
They both stopped. Dr. Strange brought her breath back to normal but I could tell she was angry.
'Julian. I told you to do a good job. Screaming in the middle of oral sex is not doing a good job. If it was anyone's fault that the strap-on was hurting you it was your own. I gave you every chance to lubricate it properly. You're going to have to be punished.'
'Ms. Chance, now I really want you to give him a reason to scream. Julian, you bury your head in my vagina and lick it well otherwise I'm going to become very angry.'
Jennifer roughly took hold of my pelvis in her hands and started pumping in and out of me furiously. I thought it had been painful before but now strap-on tore in and out of me and it was only my fear of Dr. Strange that prevented me from shouting with agony. I squirmed and tried to wriggle into a position that wouldn't be so painful, all to no avail. I stuck my tongue out as far as I could into Dr. Strange's vagina and licked frantically, while desperately ransacking my mind for any technique I could think of which would please her. My efforts incited her passion and she began to thrust her pelvis into my face and moan loudly. Jennifer continued to fuck me, only occasionally stopping to give me a quick spank or push my head deeper into Dr. Strange's pelvis.
Dr. Strange's movements grew more and more frenzied and eventually she reached her crescendo, drenching my face in her juices.
'That was good, Julian, that was very very good.'
She breathed heavily above me.
'I hope your lesson has been learned.'
Slowly, she stood up on the table. From my position I had a good view of her ankles, but that was about it. She was so far above me her voice may as well have come from heaven. So were the drops that spattered over the back of my neck. I'll never know if they were the remains of her juices, or something else.
'I need to talk to you outside Ms. Chance.'
Dr. Strange got off the table and took Jennifer outside. I was left alone, tied to the desk. I was cold and it was very quiet. I reached back with my hands to feel my buttocks. They were warm and smooth and very sensitive. I still keenly felt the aftereffects of the strap-on's invasion of me. I also noticed a peculiar tingling around my hairless crotch, around the area where the chain held my penis in a tight and chilly embrace. I couldn't really call it pain, but it wasn't a pleasant sensation either. Above all I felt alone and exhausted. It was a peculiar feeling, but I longed for the return of my two tormentors. I wanted some company, though I hoped it would not mean more punishment. I wanted some human touch and warmth. I wanted it all to end.
The silence stretched on. I strained my ears and tried to hear any voices outside but all was still. In the continuing emptiness I started to wonder what else Dr. Strange and Jennifer had planned for me. They had been gone for so long I started to think they had abandoned me. Would she really do that? I was her husband after all. I loved her. And I thought she loved me too.
The door opened and I heard two sets of footsteps approaching. Silently, someone covered my eyes with a piece of cloth while the chain was detached from my penis. Then I was pulled back and set on a chair. My hands were tied behind the chair's back.
Again there was a pause of a few moments. I could discern no movement and half-formed images of possible tortures flashed through my mind. Then, through the haze of my thoughts, I felt hot breath on my crotch. It might have been going on for a while, I'm not sure. The cold must have numbed the area. The faint waft of hot air washing over my penis slowly brought it back to life. It felt almost like a caress, like all those times I had lain by Jennifer in our bed after making love when we had embraced and felt our warm skin touch and almost fuse together.
'Julian', Dr. Strange's voice whispered in my ear, 'that's Ms. Chance there. Wouldn't you like for her to touch you?'
I tried to say something, failed, clear my throat and tried again.
'Y-yes. Very much.'
'Why don't you ask her to touch you?'
'Jennifer would you please touch me?'
'Louder, Julian, I don't think she heard you.'
'Jennifer, please touch me.'
I felt Jennifer's warm fingers stroking my cock, sending a gentle thrill up my spine. I felt an erection start to form.
'Julian, is there anything else you'd like Ms. Chance to do?'
I hadn't been thinking until now, lost in the pleasure of Jennifer's touch on my body, but as soon as I heard Dr. Strange I suddenly realized there was something I wanted very urgently.
'Yes.'
'What is it?'
'Jennifer, can you please take me into your mouth?'
Dr. Strange drew a sharp inward breath. Jennifer didn't stop her stroking. By now I was fully erect and I was sure it was one of the most impressive erections I'd ever had. The earlier torture at the hands of Dr. Strange and Jennifer had awakened something deep inside me and I felt I must have Jennifer. I must have her touch me. I wanted to feel her mouth, to hold her, to penetrate her.
'Julian, that's a very impertinent request. I'm not sure what Ms. Chance will think of it. In her place I would of course do nothing of the sort. Indeed, I would punish you for even suggesting it. But Ms. Chance and I are of different disposition. Perhaps she will grant your wish?'
I felt Jennifer's breath grow ever closer to my glans. My breath grew shorter. Then she pulled away and stopped caressing me.