Copulation Testing

In the last 45 minutes we’d all had our mouths filled with different sized penises and one big rubber dildo, we’d swallowed as much semen as we could but our faces and breasts were also covered in it, but there was to be no rest; we were allowed to clean our breasts and faces with cold water, our collars were once more put on our necks if they’d fallen off, or simply tightened and we were pulled up to our feet and quickly walked down the corridor to another basement room.

This room was darker and our Trainer ordered us to get on all fours, our heads and breasts on the floor and our bottom high, legs apart...we did so and waiting in this exposed position heard two female and three male Trainers enter. I felt very much on display, I knew my labia were swollen and wet because, despite the effort it took, sucking those cocks had turned me on, and my round bottom was very striped with flogging marks (a new experience but one I would soon become very familiar with!).

I was ready to feel a big erect penis inside me but suddenly without any warning my hair was pulled painfully upwards and in one swift thrust a huge thick unnatural dildo plunged deep into my wet vagina.

It felt huge, stretching my lips apart and instantly smashing into my cervix, I yelped in shock and the female Trainer whose waist the dildo was attached to laughed, slapped my already tender bottom very hard and continued thrusting in and out of my stretched girl hole. I knew this was what expected of a chattel, and although I’d only had real penises inside me I was doing my best not to struggle but push my welted bottom back onto the Trainer so she penetrated me further... I had no doubt that is what was expected of me. Looking over at Tania being fucked by the other female Trainer I could see how big the rubber cocks were, she clearly wasn’t enjoying it - she'd been tied up over a wooden block and ball-gagged to stop the poor thing screaming so much!

The Trainer kept thrusting the whole length in and out of me, smacking my exposed bum cheeks and tugging my hair and then she bent forward and slapped my swinging heavy breasts hard too, I yelped again and she laughed, slapping my breasts again and again until they began to hurt... then, as quickly as she’d begun she simply pulled out and left me to collapse on the bed. I fell forward, panting and sore, wanting a rest but immediately the strong hands of a male Trainer grabbed me, rolled me onto my back, pushed my legs up above my head and thrust his erect penis straight into my open vagina. I caught my breath, he slapped my big wobbling breasts, put his hand on my throat and continued pummelling my vagina with his big penis.

I opened my legs as wide as I could, my knees behind my head and my girl hole opened wide for him to use.... which he did, hard and fast. I was beginning to orgasm as he continued to pound, but as soon as he sensed it he pulled out and left me on edge, my vagina ever so wet and my heart pounding.

It was only a few seconds before the next male Trainer was kneeling between my spread thighs, his huge erect penis covered in juice from one of the other girls, I waited for him to push into my open vagina but suddenly, to my surprise, he grabbed my bottom cheeks, pushed me over further onto my back and roughly pulled them apart... I realised too late he was going to penetrate my bottom (something I really didn't like, but must get used to) and he simply pushed his thick penis-head into my little bud, making me wince as it went in deeper and deeper with no lubrication but the juices of another girl. Ohhh..it hurt so much as it stretched my poor little bottom but once again I tried to do my best and pushed my bum up towards him.

I wanted to show him how good a harem chattel I would be and I was concentrating on not squirming too much when suddenly another Trainer pulled my hair tightly and dragged me up to a padded table, my poor bottom gaping wide, then started tying tight leather straps around my thighs and my ankles, holding them tightly together

Gasping and now very wet in both my vagina and bottom hole I was positioned with my hands above my head so that he could continue sliding in and out of my bottom while my constricted thighs kept the hole so much tighter ...the sensations were more pain then pleasure all at once and I wanted to moan and moan.

Other Trainers had entered the room and all of us were being tested and assessed in many ways (I could see our Head Trainer taking notes) and as I watched big breasted Tania (her wrists tied to her legs) being taken in her bottom by a huge muscular Trainer...he suddenly pulled his huge penis out of her, pushed her down onto the mattress in a heap and mounted my face. He pushed his huge penis straight into my moaning mouth (my own bottom still being pounded) with all the weight of his body behind it; it made me gag and splutter as I did my best to take it so far into my throat... but worst of all it tasted horrible, clearly of Tania's poor bottom - a taste we would once again have to become accustomed to.

Then a third trainer came over to where I was being used and without warning rammed his penis into my vagina...it being held tight by the belts on my thighs... I could feel the one in my bottom rubbing against it inside me, a little piece of muscle in between... I was filled everywhere. I looked around as best I could and I saw all the other girls tied up and being copulated with by three Trainers

All three of my orifices were relentlessly being pounded and filled well by these three long, thick penises. It was hard to breath and, not being used to this, my bottom and mouth were beginning to suffer but my vagina was very wet and I was once again on the cusp of an orgasm when the Trainer in my mouth started to ejaculate streams of sticky sour semen into my throat. I would've tried to push him off if my arms hadn't been under me but I knew I had to try and swallow as much as I could as he pushed his entire body weight onto my face and filled my throat, and so I once again did my best. His penis in my throat, balls on my chin and big bottom and thighs encasing my face I suddenly felt my bottom being ejaculated into as well, hot spurts of semen filling me up down there and then seeping out as that Trainer pulled out of me, leaving my bottom hole gaping and sore. Finally, still unable to move, the Trainer in my vagina pulled out and ejaculated all over my heaving breasts, to the amusement of our Head Trainer.

The man straddling my face pulled out, wiped his penis on my face and slapped me hard and I lay there with semen on my big breasts, dribbling from my gaping bottom hole and smeared on my face. All the other girls looked very much the same, the Trainers finishing off in the last two...one on her back, tied with leather straps as her throat was being ejaculated into and her bottom and vagina pounded and stretched and one on all fours, frantically stroking a Trainer's penis into her mouth as he shouted at her to make him cum or else she would fail the test.. as two of his colleagues both used her bottom.. she had to concentrate ever so much until he finally pulled out and covered her face in his semen as the other two glazed her plump red bottom with theirs!

and, although we were all quite exhausted there was still one more assessment for us - our tolerance to pain...

(lots of fucking illustrations! https://tatyanas-story.blogspot.com/2019/10/copulation-testing.html)