Katie was finally getting his breath back after the nearly two-hour long session with Xia and already madly in love with his own new gender. The small, blue bunny boi-turned-female was lying on his back on a huge and beautiful bed in the zebra's opulent estate, legs spread and inner thighs drenched after all the finger and tongue attention. The zebra herself lounged on the foot of the bed, licking her fingertips and tittering to herself.
"I take it you enjoyed that? <3" she teased and crawled up to pull the limp Katie into her arms.
Xia was a beauty to behold. Katie knew she was tall and strong but seeing her in the nude was an astonishing surprise. Xia was a rarity herself, not quite a herm but a dickgirl: she had the femininity balanced with her masculinity, the alluring pair of striped breasts and a thick, long, jet-black cock and balls. But no pussy. Dickgirls were quite rare since they couldn't give birth, only impregnate and even then the odds of being born a dickgirl was slim to none. While some herms boasted about both their fertility rates it was considrered by some a weakness for them tohave a pussy as well. Just another hole to be tempted out of autority with. Dickgirls didn't have this 'weakness' and thus were known as the strongest, most capapble of dominant partners. It was no wonder Xia was a Dom-ranked officer, she more than earned it with her natural skills and experience in bed.
Katie had just felt the training for himself, being worked into a mind-shattering orgasm just from some skillful touching, proding and licking. After all the teasing and edging, Xia proved how skilled she was by forcing Katie to cum without any penetration at all. Now the bunny had no strength left and just nuzzled his head between Xia's soft breasts.
"Dear, dear," Xia tutted and kissed the top of Katie's head. "Maybe I went a little too hard your first time. That's alright, you can show me just how skillful you are... <3"
Katie felt a flutter of excitement in his chest and blushed. "Um, I-I'm... worried," she squeaked a little fearfully. "It's my first time with, um... this hole. A-And-" he started to stammer but was cut off by the loud little grumbling from his flat stomach. Instantly Katie was blushing and looking away while Xia did her best not to laugh.
"Aw, don't be embaressed, bun-bun, edging like that can really work up an appetite. Luckily, I know one of your favorite foods... "
Before Katie could protest Xia had acted quuckly and bound his thin little wrists to one of the bedposts, leaving Katie exposed and vulnarable. Katie knew what the zebra was up to and though he was exhausted from the earlier orgasm, Xia wouldn't take 'no' for an answer. After all, it wasn't fair that only Katie gets to have some fun and the bunny knew that. Katie couldn't help but squeak in surprise when a goodly-sized buttplug was pushed into his tailhole as well, knowing in his heart why and only getting more anxious.
"Open wide, hunny bunny, <3" the powerful, well-hung zebra sing-songed as she pressed the broad head of her massive black cock to Katie's lips. It was as black as the night, just like Candace's, but the blackness spread to her heavy, cum-filled testicles as well which made for a frightening but incredibly arousing aspect as Katie's muzzle filled with the hot cock; as Xia slowly fed her member to the bunny, that huge sack got closer and closer, devouring the light in the room and threaning to engulf Katie's vision in darkness.
"Gh...mgh...!" he managed to whimper and gag as his throat started to fill as well, his neck bulging as more and more was pushed down. The bunny couldn't make a sound anymore, his throat was completely full. Xia paused a moment, looking down at the bunny who could still breathe comfortably even while deepthroating. With a smirk she started again and didn't stop until Katie had taken her to the root, all fifteen inches of length and nearly three inches thick inside him. Sure enough, those black balls covered his face and plunged the world into a heavenly musky darkness.
"That's not a common gift," Xia muttered as she waited there with her whole member stuffed in a small blue bunny. "If you can do that... you know what you have to do, don't you? Well? Don't dissapoint me, slut."
It was like a switch in Katie's mind the moment he heard those words. Without further promtping katie started working his throat and tongue, squeezing, gulpng, swallowing and wiggling all around Xia's cock. Little gagging noises came from him but he worked like a champ beneath the zebra. That seemed to be the right thing as Xia moaned ever so softly and started to move her hips back and forth, the dark balls pulling back and forth as she used his throat like a fleshlight. Katie's throat and tongue worked tirelessly, a deep-seated hunger from long ago awakened by those commands and he hungered for what churned and sloshed in those black orbs.
"Oooh, good girl, show your Mistress how much you love her cock," Xia gasped, panting herself as the thrusts became stronger. SHe was pulling more of herself out now and ramming it back in, facefucking Katie in earnest and holding the bunny's head in her strong hands to do so. The little gagging sounds were more frequent now and that only made Xia more aroused, working her hips like she was trying to force the sounds from Katie. Soon, Xia lost control and rammed herself all the way in one final time, letting out a moan so passionate that the bunny nearly came from that... and might have if he wasn't already feeling his pussy squirt just from the massive, massive load of cum being pumped into him.
Katie understood the need for the plug now: it was to keep the torrent of cum rapidly filling his tummy and making it swell from gushing out the other end. This was Katie's meal, after all. Xia held on for a while, shivering as load after load was pumped into her guest before finally falling back, her own strength drained and her cock noisily slurping from katie's hungry little muzzle.
It was all too much for both of them. Within seconds both Katie and Xia were out like a light, the bunny still tied to the bedpoast and looking nine-months pregnant.
***
"I understand if you're desitive about this," Xia said softly, "but the natural gifts you have aren't common among civilians. You were a slave, weren't you?"
Katie nodded slowly and blushed. "Y-Yes."
The two of them were cuddling together on the bed now, cleaned up and Xia affectioantely rubbing Katie's shrinking tummy. They'd only been out for a few minutes but Katie was already absorbing his 'meal' of zebra cum. He'd gone from looking nine-month's pregnant to only six and was getting smaller as he felt his stength slowly returning. They weren't alone, either. Kei Corp had sent its last resort to help Katie with his condition and in one corner of the estate bedroom huddled one of the Doctors. This one was less intimidating that the last one Katie met, a small mouse female who wore the same rubber bodysuit, overoat and facemask obscuring her muzzle but was less curt. A pair of small spectacles were perched on her face, almost managing to turn attention away from her most glaring feature: for a female mouse, this Doctor had tits a bovine female would be proud of. Katie couldn't understand how she could work looking over her own breasts at the collection of vials and beakers she worked with.
Xia was trying to draw the conversation away from the odd Doctor in the corner. "You behaved a lot like some slaves I've had to help train," the zebra admitted. "Only a couple surprised me when they could still breathe normally with their throats full. It's a very uncommon trait in breeding, very sought after by herm owners for obvious reasons. But cum-digestion... that's rarer than rare."
Katie continued to blush but managed a little sheepish smile. "Th-This doesn't leave the room... okay?" Xia nodded and katie went on. "My mother... she was a slave owned by my father. She was one of the most valuable slaves on the market and he nearly went bankrupt buying her. But he did and... well, here I am: the perfect little bunny born from the ideal slave with the golden fur."
Xia tilted her head curiously. "Golden? I thought the blue fur was another rare gift she passed on to you."
Katie shook his head. "No, that... that came later. At first I was going to be raised for the market but early on I... I got sick. Really sick. I don't know what it was but if my father hadn't sacrificed his market stock to pay for my treatment, I... I-I wouldn't be... I..."
Xia held Katie close as the tears came, giving the little bunny a chance to collect himself before continuing. "I wasn't born like this," he said after a few minutes. "Floppy ears and blue fur? That was from the cure. My ears lost their cardalidge or something and grww out long and floppy. My coat was permanently dyed this color and my market value was shot. So, rather than have a 'failure' of a son, my father sold me to a trainer and I never saw him or my mother again."
"You were trained too?"
Katie nodded and smiled. "Mistress Eli... she was a chesnut mare that taught me all the tricks I know and showed me what my natural talents could do. She was like a real mother and helped groom me and showed me how to be a proper boi. I was everything in my training: a pet, furniture, bed toy, everything. She introduced me to Mabel and helped our friendship start and from there it's pretty simple after we both applied to be OCG officers."
Xia beamed and stroked the bun's soft hair from his face. "You're something else, hunny bunny," she praised and gave a sinister titter. "Of course, since I know your history you can expect me to not hold back from here on out."
Katie blushed and smiled, feeling his inner thighs get wet. "P-Promise? <3" he squeaked softly and was met by a giggle and a kiss from Xia. The embrace deepened and from the growing stiffness in the zebra's member Katie was feeling ready for another round. Unfortunately, the Doctor chose that moment to cut in.
"Beg pardon," she spoke so high and soft, her voice was like the peal of a bell. When Katie and Xia broke the kiss to look at her they were surprised to find the white-coated, rubber-clad mouse at the side of the bed holding a small vial of glittering pik liquid. "The treatment is ready. Please consume this tonic in one gulp."
Tentatively, Katie did so, wincing at the surprising mixture of sweetness and saltiness. It went down like sticky syrup and left a lingering salty taste on his tongue. "Ugh... th-this'll change me back?" he groaned, shivering as a strange warm spread in his abdomen.
"Yes and no."
"Wait, what?!" Xia rounded on the Doctor, vaulting over Katie with her impressive gymnastic strength and looming over the small, strange mouse. "What the hell is that supposed to mean!"
"What I said," the sickly-sweet voice of the Doctor squeaked without a hint of hesitation or any sign of distress from Xia's temper. "The patient's DNA had already been altered by the childhood treatment. Exposure to the genderswap elements in the Heartbreaker destabilized his body further by permanently altering him. However, the fractured DNA can be restructured and strengthened to prevent this type of incident in the future."
Katie was stuck on the word 'permanently' and took a moment to realize what was being said. "B-But wait, what did you... oh my..." he trailed off again, sitting up on the bed and looking own at himself. There, like it have never been gone was his maleness, as tiny and ineffective as ever. Katie felt a surge of joy at being a boi again, though a little part of him missed having the super sensitivity of a pussy. He never even got to feel what it was like to be penetrated.
"Oh my... wh-what's happening?!" he squeaked in alarm and Xia turned to watch with wide eyes. The Doctor observed with clinical interest as Katie's maleness shrunk away, melting back into his crotch and reforming into that perfect little pussy again.
"It didn't work?" Xia muttered and watched again as the process reversed. From male to female he switched until finally the Doctor spoke again.
"This is your new ability," she explained calmly. "Try to focus your mind, think of which gender you wish to be and picture it very clearly. Concentrate." It took a little time to calm down before concentrating but he did as ordered, closing his eyes and imagining his little package and there it was. "There. It'll take some practice but soon you will be one of the rare few who can swap their genitals at will. Be aware that your vagina is not a true female's. You cannot become pregnant as there are no ovaries, only a womb. You can be either boi or cuntboi now, the ability is entirely yours to control."
katie was astonished. He looked down and touched himself. Yes, those were his little orbs and his tiny member. It wasn't an illusion. "You couldn't make me just a boi again?"
The mouse Doctor shook her head. It was hard to read her expression behind that tight rubber surgery mask. "As stated, your DNA was unstable to begin with. This was the only way to save you and keep you from mutating further. Do not worry, I assure you that you cannot become pregnant, though if you desire such, we can devise a way to alter you to function as a normal female. But that would take time and research."
Katie was stunned and oblivious to the world now, marveling at his new ability while Xia ushered the Doctor from the opulent bedroom. Once they were alone again, Xia stood at the foot of the bed with her arms crossed over her chest. She was patient, waiting until katie noticed her before she spoke in an authoritative tone.
"From today on, you are my pet," she ordered. "And I will not have my pet sleeping from couch to couch. My pet deserves a proper home and will live with me rent-free from now on. In exchange for my generosity I have only four simple rules. Rule one: when home you will always be collared. I will have you fitted for one in the morning and you will always wear it when not outside unless I order such. Rule two: you will be trained by me to be my partner on the force. We'll form a special Dom/sub joint operation. Rule three: at home I will train you how I see fit, dress you how I see fit, and discipline you how I see fit. I am your Mistress and you will always address me as such. Understood?"
"Yes, Mistress!" Katie quickly squeaked, blushing and feeling a joy from deep within rising to the surface. He was so happy. Xia was going to be his owner and he would live with her! THe worries of home-searching flew away completely and tears of joy welled up in his eyes.
Xia's sternness softened and she crawled onto the bed, looming over Katie with her strong, tall body easily eclisping his own. "It's a lot to take in, I know... but that's where the fourth rule comes in," she said softly, kissing the tears from katie's cheeks.
"Rule f-four, Mistress?"
"Yes. Rule four: I will teach you to use your new bunny cunny. When your collar is off you can be who you want to be outside, do what you want and fool around with who you want. But here in your home when the collar is on, you're mine alone." She leaned in to breathe the words into katie's floppy ear. "And I'll tie you up all you want as long as you behave. <3"
Katie whimpered, eyes scrunched tight and trembling as his little boi cock let out a little spurt onto Xia's breast. That was enough to make him cum and Xia didn't even have to touch the bunny. "I'll overlook that one tonight, bun-bun," she whispered and gave his ear a nibble. "But tonight, I think you need to finally have your pretty little cunny plundered properly. Does Mistress Xia's little bun wanna be gagged too? <3"
Katie nodded eagerly and the night was set.
True to her word, katie was bound and gagged and helpless on the bed. A firm red ball gag filled his little muzzle and a blindfold kept him unable to see what Xia was doing, only feel. He was spread-eagled on the bed, his arms and legs tied to each corner. Xia had explained that as this was his first time they would start with a classic position and situation. Katie was in c-boi mode, whimpering and struggling in vain against his bonds as Xia teased him mercilessly. The zebra was on her side again, using her tongue to lick and occasional nip at the smalle bunny's super-sensitive nipples while her fingers worked his soaking wet pussy.
"Goodness, so wet!" she cooed and slipped a third finger in; she was getting him primed to take his first cock in that hole, teasing and stretching him as best she could. "I bet you can't wait for my big, throbbing black cock, can you?Remember how nice it was in your throat? I bet you'd love to be fucked with it. Who knows? I think I might just plow your cute butt too immediately afterward, a double-cream-filled bunny. Yum, yum.. <3"
"Mm!" Katie whimpered softly, the sound barely escaping the gag and only making Xia titter more.
"Aww, you look absolutely adorable with something in your muzzle. Hmm, maybe a gag will be standard like the collar and I'll switch to a new kind each day?" That nearly brought katie to orgasm and Xia instantly stopped, pulling her tongue and fingers away and leaving Katie to squirm helplessly. "Ah, ah, not so fast. Good pets don't cum until Mistress says they can. Do you want to be a good pet for Mistress Xia?"
"Mm..." Katie whimpered and nodded quickly.
"Good pet. <3"
After what felt like hours, Katie was able to take all of Xia's fingers and was going mad with desire. He wanted it so bad he almost wept when he felt the broad tip press against his new, super-slick cunt. He barely heard Xia whisper the word 'relax' before he nearly fainted from being penetrated. It felt incredible, beyond anything he could have enaticipated, the wide and length stretching that little bunny cunny and filling it with hot, black zebra cock. Still, as much as he could take, he felt the zebra bottom out in his womb, getting almost 3/4 of herself inside. Not bad for a little bunny cuntboi.
"Get ready, hun," Xia whispered as she leaned over him, her hands holding his hips firmly. "Now comes the real fucking. <3"
This time, katie did pass out but not until after Xia finished as well. Katie lost count of how many times he came as she hammered herself into him, squealing and squeaking and shuddering over and over in Xia's grasp until she too came at last and filled his c-boi womb with her massive load. Unlike before he couldn't absorb as fast or contain it all at once, a goodly amount leaking around the tight seal Xia' cock made and gushing out when she pulled out.
"Ah, very good, darling," she praised between excited panting. Katie came to in time to feel her still-hard cock resting on his swollen, yet rapidly shrinking stomach as the cum poured forth. "Hm, need to find a less messy way of pumping your little cunny. Oh well. Now, just one more hole before you're officially mine. <3"
Having his cute butt pounded hard wasn't anything Katie was a stranger to, but Xia's sheer side and length made it one to remember. The zebra was merciless after pushing herself to the hilt inside and marveling at Katie's body, remarking how no other pet had taken her to the balls in either hole before. The professional demeanor was gone this time, just a horny dickgirl going wild and slamming her hips against Katie's rump over and over. She even reached up to practically tear the blindfold and gag off before planting her lips firmly on katie's, kissing the boi deeply and pulling his tongue into her hungry mouth.
"Aah, goddess, you feel amazing!" she gasped and kissed him again just as fiercely. "Screw training, we can start tomorrow, I'm gonna fuck you so hard you won't stand until morning! <3 <3 <3"
And she did. Multiple times. <3