I stared intently at my reflection. Most people would probably be horribly surprised or scared to see what I'd become. But as I stood there, I found myself enjoying the changes more and more.
Aside from my massive genitals, my breasts appeared fuller and rounder, not just larger. The soft, tan fur covering them was thinner around my nips, but thick inbetween the basketball sized orbs. My nipples were hard and black, dry milk on their tips.
I turned around to get a good look at my back. As I had suspected earlier, there are small black dots covering my back, and a thick, darker "mane" on my neck. Kind of like a hyena. Which would explain the paws and more canine muzzle. The fur on my face is also darker, and shorter. My nose is larger than I thought it was. My nostrils taking on a slightly equine form, very round and large.
I continued my inspection, and I noticed for the first time that my ears have also changed. They're more like a horse's, long and pointed on the top of my head. My tail is caught somewhere in between hyena and horse. It's not very long, only four inches or so. But the tip is covered in long, wiry hair. They're an additional four inches long, and as black as night.
"Subject inspecting form. Final stage of changes imminent." the robot said. I saw my tail begin to wag as I anticipated the changes.
The first thing I saw begin to morph was my torso. Four lumps formed on my stomach, directly under my breasts. I realized I was growing teats. My original breasts began to change as well, the nipples becoming much longer. They were four inches when they finally stopped. Below them, my new breasts came in. I felt my new nipples pop out of my flesh, just as long and instantly erect.
I couldn't help but I yip and yowl in pleasure. I could feel myself getting wet and hard at the same time. The lust was driving my body crazy. My asshole puckered, and felt like it was inflating. I moved around so I could watch as it transformed into that of a horse's asshole. I took one paw and gently began finger it.
"Ooo, that feels so nice!" I gasped. My asshole was just as sensitive as my pussy. I felt my cock sliding out of its sheath once more, my balls tensing in their sack. As I got hotter and hotter, my balls expanded. Once the size of apples inflated to the size of grapefruits. More and more cum filled my ballsack, and I couldn't wait to release some of it. They hung down low and full, swinging pendulously between my thighs. My cock was already spitting pre everywhere. My mare pussy was soaking my legs, a pool of fluid under my paws.
I only stopped pleasuring myself when I felt something prick my forehead. In less than five seconds, two long bull horns burst from my forehead. At long last, I came. Horse seed flew everywhere, my cunt released a waterfall of fluid. I almost fell over.
Once I regained control of my senses, I looked at myself again. I was part bull (bovine horns and testicles), part horse (equine ears, a horsecock and horse pussy), and part hyena (my fur, paws, muzzle and tail).
"Subject has achieved final orgasm. Changes are completed. Subject appears ready for additional testing."
"Thank you Mira." the scientists' voice sounds closer. I feel my ears swivel atop my head, toward the direction of the sound. I turned around to see the woman in the lab coat approaching. When she steps into the light, my mouth waters at the sight of her body.
Underneath that lab coat, she's as naked as I am. Her torso is lined with multiple teats. They're much larger than my own, and I wonder for a moment how she's able to carry them. Each one has to be at least an F cup. The nipples are longer than my own too, six inches long and much puffier.
Her ears are tapered into points, and her hands have dainty claws. Her face is human, aside from her ears. She's beautiful, with dark hair that cascades down to her shoulders. The woman's feet look reptilian, lightly scaled and pale claws extending from her toes. A long, sinewy tail sways behind her. Her pussy is like mine, a mare's. It's large black lips are wet, obviously she's just as turned on as I am.
I almost gasp when I see that, also like me, she has a cock above pussy. It was well hidden by her teats, until it became erect. But she has no balls. Her cock appears to be a mixture of canine and feline. The base has a huge knot, and the shaft is lined with tiny spines.
Her massive teats giggle with each step she takes. I have the urge to rush over to her, latch onto one of her enormous nipples, and never let go. My horsecock seems to be on a hair trigger, because it springs back to life despite my multiple orgasms.
"Easy pet, let's take things slow and savor the moment." the woman's voice is lower, and has the desired effect. I'm practically panting, my hyena tongue lapping up the musty air around me. I need her inside me. I need to be inside HER. I can only hold out for so long before I start whining in need.
"You are so good. Come here, let me reward you for all you've done." she said softly. I nearly run to her, and allows her to stroke my mane. Her cock rubs against my own as she does. Her strokes move from my neck and back to my tail. And then her hands start stroking my pussy.
I yowl, the heat once again returning. As she continues to stroke, I see her using her other hand to stroke my horsecock. I bend over to suck her own phallus. Her pre cum tastes so different from my own. I can't get enough. I can feel my orgasm about to burst, when she pulls away.
"No, I want to do this right. Turn around pet." she instructs. I do as I'm told, and feel her place her hands on my hips. I thrust my ass up, ready to be taken. The head of her cock pokes my pussy. I can feel my cunt contracting in anticipation.
"I'm ready, take me!" I shouted. My pussy stretched open at that moment, and was quickly filled with cock. I moan and feel milk escape my many breasts. My own cock sandwiched between my teats. I'm giving myself a boob-job while being fucked. Another idea forms in my head as I'm being pounded. I bend my head over, and find that I can also give myself a blowjob.
The double stimulation on my cock, plus the intense fucking I'm receiving from this canine/feline cock is too much. I cum, my cunt clamping down around the hybrid phallus. The knot swells, locking us together, while the spines dig into my vaginal walls. I feel hot cum shoot into my snatch. My horse pussy takes it all, not a single drop is lost. I swallow as much of my own cum as I can before I pass out.
Still attached, I collapse to the ground, exhausted from all the intense action I've received in the past hour.