The mare Serum PT.2

Helen doesn't know what to do, she's just sitting there trying to find an explanation on what's happening and especially why Mike is doing this.

"You don't have to be afraid..." Say Mike, his proudness for his serum grow by second "...if everything goes right, In some minutes, you will just think to one thing " now Helen's ears change shape and position, they're moving on top of her head and now are pointed and longer.

Helen's find the strength to spot out some words to understand better the situation:" What do you neeeeeiiigh!" Surely that's not what's expecting but she was more surprised when she cover her mouths with both of her hands and she can feel her face is transforming too: her mouth and her nose are now closer and her jaws are longer, now is more appropriate to say her muzzle is transforming.

"Mike, why are you tr... Orming... Tran... transforming meeeeeeiiiigh!!"Not just her body is changing, she can feel that her mind is becoming simpler and to pronounce or remember long words is becoming difficult.

Her legs transformation has ripped completely her trousers, now her bone has shifted and change position: now she has two beautiful mare's legs completed with hooves.

Her butt keep to grow stretching her panties to the limit but not just the butt is changing, when Helen look down she can see, and feel of course, that her panties are completely wet and her vagina is bigger than ever.

"Why are transforming you? You are a random choice..." Mike stand up from the sofa looking down on her:"... I haven't choose you for a reason" Mike doesn't show any mercy on her, is just methodically observing his subject.

"I won't let you..." Helen stop a moment thinking what to say while her bra laces brakes making it to fall to the ground and leaving her incredibly huge boobs finally free"... making neeeeeeigh a horse"

"You can't do anything about that..." Mike unzips his trousers and pull out his cock just in front of Helen's face "... I'll show you what you'll become: a mare to breed"

Mike's cock is almost hypnotic, Helen's gaze is fixed on it and her pussy is even wetter than before:" No... You... I..." She try to say something but her mind is focus on his penis, she deeply wants it but try to resist the tentation.

Helen's butt has reach his final stage and her panties are totally gone, now her vagina is exposed, a large hole with big labia completely soaked:"neeeeeigh" this is the only thing that is able to say right now while her head is slowly approaching Mike's cock.

She's almost there but Mike take a step back making Helen to flinch and regain a little bit of consciousness, she looks down at her transformed body, she knows that she can't do anything to reverse this but hasn't accept her date either.

"If you want my penis show me..." Mike looks at Helen's, the serum has exceed his expectations "... How bad do you want it?"

Helen doesn't want his penis, she needs it! Her body is on fire, is screaming to be filled with cum, the last sparkle of humanity fades in distance as her hand reach her vagina.

She isn't touching her vagina, she is masturbating herself with her whole hand:" neeeeiiiigh need..." Her arousal grow even more, she's pleading Mike "...inside... Neeeeeeeiiiigh... Now" meanwhile her body hasn't stop to change, just above her ass a horse tail grow,long and voluptuous.

"Experiment successful!" Exclaim Mike just before entering her pussy; Her vagina is wet and hot, his cock thrusts inside Helen so easily.

"Harder!" Shout Helen, Mike doesn't waste time and is pounding her so hard that she's just capable of moan and make horse noises.

She's in Heaven, is like a primordial hunger is being satisfied, her body is Sweating and sensitive while the last changes happening, her muzzle elongate further making her face more similar to a mare and the last touch was between her vagina and her belly: it start with two little dots, but the more Mike fucks her pussy the more they grew, two pendulous mare's udders with pointed nipples.

She's being fucked roughly by Mike her body has reached the climax several time sending her in ecstasy every time she comes, she's no more Helen the cute 26 years old girl, now she's just Helen the mare.

Finally Mike reach his climax too and cum inside Helen sending shivers down her spine and filling her completely leaving her satisfied on the sofa.

A man is sitting on the backseat of a limousine, he's in his forty, dressed elegant with expensive clothes.

He's looking outside the window with a bored gaze, staring at people walking on the streets when suddenly his phone vibrate.

A playing smile spread along his face when he pick up the call:"Hey, Doc! It's been a while... How's everything going?" He is hoping for good news, finally something that can make his life spicy.

"Things goes better than expected..." That's clearly Mike's voice coming out the phone:" ...the mare serum is complete and ready!" Say Mike proudly.

"Finally! I knew that you weren't a waste of time Doc..." A sigh of relief exit the man's mouth "... Now tell me, I'm impatient! From 0 to 10, where will you put this serum?"

Mike gives a look at Helen: long and muscular horse leg, two black and sturdy hooves, a horse muzzle that conserve some humanity, a voluptuous tail swishing left and right, four tits in total, two pendulous mare's udders just under her belly and two enormous big boobs on her breast, a huge big butt with a large anus ready to be fucked, a swelling, wet vagina screaming to be filled, all of her body covered in red fur, Helen is layed on the sofa, touching her clit while is making horse noises and beg to be filled again and again:" From 0 to 10? I'll say 20! You can come to my lab to take the mare serum whenever you want".

The man almost jump on his seat from the enthusiasm:" I'll be there tomorrow in the morning! Oh, and since this serum is ready I guess you'll take less time to complete the cow serum and the sow serum...".

"Exactly!" Exclaim Mike:" I've just to do some modification on the DNA inside the serum and the job is done! Let's say ...in a month also the two others serum will be ready!"

Is like Christmas for this man, he seems genuinely happy:"perfect, just perfect! I'll send you right now also the payment for the other serums"

Just thinking at those money Mike seems relaxed than ever, dreaming about what he can do with all that cash:" oh yeah! Sir I have a little gift for you too..." Mike gives a look at Helen the mare knowing that the rich man will enjoy for sure a demonstration of what the serum is capable:"... You can pick it up tomorrow with the serum..."

After Mike has ended the call he get closer to Helen:" I know you will enjoy your life from now on...".

She doesn't understand what Mike's saying so the only thing that she can do is continuing to masturbate and:" neeeeeeiiiiigh!!"