Vicky smiled as she approached you. Despite your best efforts, you knew that you had utterly failed to conceal the lust that the nearby stallion had brought to the surface.
“My, my, it looks like you have an admirer stud. Princess here seems eager to mate right here and now.” You didn’t react as Vicky began to softly stroke your flank, your thoughts still clouded by the female urges that surged through your body. “Sadly our young filly is not yet safe to breed. However, we can still use her for our study of female equine anatomy.”
Vicky carefully guided you into position so that your rear-end was facing the nearby stallion. You could feel your senses starting to return, causing you to fidget about as you were led into position. However, you could still feel your pussy continuing to throb demandingly between your legs.
“As you can see, Princess has two teats for nourishing her offspring. They are currently empty, but will fill with milk once she is ready to give birth.” You then let out a shrill whinny of surprise when you felt Vicky’s fingers gently brushing over the sensitive flesh of your lower abdomen. You shifted about in discomfort as she rubbed your empty teats and pinched your two hyper-sensitive nipples. The sensations radiating from this unexplored area of your body sent a fresh wave of pleasure coursing through you. You could feel the burning heat in your pussy rising again as the need for release became increasingly desperate.
This teasing continued for a short while before it abruptly stopped. You snorted and stomped your hooves in frustration as the fire in your loins now burned hotter than before.
Upon spotting your distress, Vicky leaned forward to whisper in your ear. “Do you want to see it Princess? Would you like to see that ripe juicy cunt of yours? Do it and you will have earned your reward.”
You snorted in despair at this prospect. You didn’t want to see what had become of your manhood. You already knew the answer, but you feared what seeing it would do to your sanity. You snorted and pulled your head away in defiance, not wanting to fully accept your cruel fate.
“Awww, it’s so adorable that you’re still in denial about your new sexuality. No matter, I’m sure you will soon be willing to continue the lesson.” With that, Vicky turned you to face away from Zach. To your humiliation you could see that the big male was transfixed on your large rounded ass. You tried not to think about him or your demanding pussy as you shut your eyes.
Vicky chuckled upon seeing this reaction. She then firmly grabbed your tail and pulled it to one side, revealing your tight equine vagina to the excited stallion. “Okay stud, this is where you’ll be putting that big dick of yours.” As she said this Vicky gently stroked your swollen sex organ. She then ran her finger over the length of the slit a few times, making you snort and shift around in discomfort. She then parted your velvety lips apart, scissoring them open so that Zach got a glimpse of the sensitive flesh inside your passage. You couldn’t hold back a noise that was part whinny, part moan as your fluids began to spill out between the spread lips.
“As you can see, Princess’ vagina is already well-lubricated. This signals her readiness to nearby stallions, whilst also making sex more comfortable for her and her mate.” Vicky paused as she let your lips snap back together. “Now a female in heat will also open and close her vulva in what is known as ‘winking.’” As she said this, Vicky suddenly inserted a finger into your passage and began rubbing the sensitive flesh inside. You whinnied again as she once again teased your needy pussy like she had done earlier in the stall. “Hopefully, with a bit of encouragement, Princess will demonstrate exactly what I am talking about.”
Your whole body shuddered as pleasure began to radiate from between your legs. You grunted, moaned and whinnied in enjoyment as your self-control began to dissipate. “Look at it!” Vicky said in a demanding hiss. “I won’t give you that release until you accept your new body.”
You wanted to keep fighting but the pressure inside your quivering vagina was becoming truly unbearable. You held out for a short while longer before you snorted in resignation. Vicky wasted no time in positioning you so that your backside was facing the mirror on the nearby wall. She then lifted your tail and stood to the side as she waited for you to finally look at what lay between your legs.
You felt ashamed as you slowly turned to look at what was reflected in the mirror behind you. You immediately felt sick when you saw the dark flesh nestled between your muscular thighs. You went to look away but Vicky motioned for you not to do so. With that you retained your focus as the reality of your situation finally started to sink in.
You shuddered as you examined the teardrop-shaped vagina that now adorned your rear-end. The dark flesh was swollen and glistening with moisture as it once again started to wink open and shut. Seeing the clitoris, which you knew was once your dick, flashing in and out between the muscular lips of your new sex dealt your sense of masculinity a heavy blow. You couldn’t deny that you were indeed a girl horse, and something about accepting that fact made your lust rise even higher.
You whinnied pleadingly at Vicky as you begged her to remove the pain in your loins as she had promised. She waited a few more moments, almost as if she was enjoying torturing you. But, mercifully, she did eventually accept. You neighed out happily when you felt her finger returning to your vagina and the familiar teasing sensations resuming where they had left off.
The finger continued to rub and poke for a short while as you started to sink back into a state of wild bestial lust. “Such a horny girl,” Vicky teased, “I’m glad that you have finally embraced your new femininity. Now, as promised, you shall have your reward.”
Any lingering thoughts of resisting immediately dissipated when you felt a second finger slip inside your tight orifice. You knew it was wrong to be enjoying this depraved act, but feeling naughty like that just added another layer to the pleasure that was arcing through your quivering equine form.
As your lust built, Vicky seemed to know how to push it to the next level. Before long she had added a third, fourth and even fifth digit to your slick orifice. You felt your vagina quivering in need as your juices continued to spill down your hind legs. You gave up any hopes of controlling yourself as you let the beast take over your body. You whinnied and snorted demandingly as you looked at Vicky. The woman simply smiled before she set about finishing what she had started.
Your eyes went wide as you felt Vicky clench her fist before ramming forward deep into your passage. You cried out in ecstasy as she sank into you all the way up to the elbow. Once in position she then started to thrust her arm in and out of your tight passage. The friction generated against this unfamiliar part of your anatomy sent jolts of pleasure shooting up your spine. You could feel your tight folds wrapping around the advancing appendage, making wet squelches echo around the building as your arousal built and built.
Before long you could sense that a powerful orgasm was about to crest. You cried out as your vagina started to tremble in release. You felt the heat in your loins suddenly rise before it began to bubble over. Your pussy then convulsed as it sprayed sticky juices over the arm lodged deep within you. You then felt a fresh wave of wetness spilling down your legs as you basked in the most delightful orgasm you had ever had.
Vicky slowly extracted herself as your sex continued to twitch and flex. She finally exited you with a wet sticky sound before your vagina sealed itself back shut.
“Well Princess,” Vicky announced happily, “it seems that you have learned how much pleasure your new body is able to grant you. If you continue to obey me you will have a lifetime of glorious sex to look forward to. Now then, I suggest you clean up your mess, after which I think the pair of you need a thorough rinse down.”
Still in a lustful haze you hadn’t really been paying attention to Vicky’s words. You were therefore surprised when she suddenly opened your mouth and stuffed her dripping arm straight inside. You gagged slightly at the unfamiliar taste of your own pussy juices as you began to lick and suck on the invading appendage. Weirdly you were so grateful for your reward that you didn’t mind repaying Vicky for her kindness. Besides, by the time you were done you had decided that you tasted surprisingly good. Shamefully you would be happy to repeat this sick act if it meant being pleasured further.
“Good girl Princess,” Vicky said as she withdrew her arm and rubbed your nose, “I see you like your own taste.”
You simply snorted contentedly, making the attendant chuckle.
“Right then,” she continued, “it’s time for you to have a good wash. You’ve both had a gruelling day and you have a lot more training over the coming days.” You just snorted dumbly as your head continued to swim in your post-orgasmic state.
Before long you were busy being washed down by Vicky and a few other stablehands. The feeling of the warm soapy water flowing over your sensitive vulva made you neigh softly as you continued to revel in the afterglow of your intense climax.
It was only later that evening when you stood back in your stall that the full realisation of what you had done started to sink in. You had completely lost control and acted like a horny female animal in heat. How were you going to avoid being mated with if you were already so complicit?
Added to this was the image of your new equine vagina that now haunted your thoughts. You could feel it nestled between your legs whenever your tail brushed over it. While the discomfort had subsided for now, you knew it would return in full force tomorrow morning. You had to come up with a means of fighting your body’s urges, otherwise you knew you were done for.
These troubling thoughts made getting to sleep almost impossible. You did eventually manage it, although you ended up having more than one nightmare that night. Thoughts of being fucked by stallions and giving birth to foals engulfed your mind, as did terrible visions of the rest of your training as you nervously awaited lesson 3…