Saiyan Sexperiments

This story was written in appreciation of an animated picture created by the goddess of MS Paint, BadEnd, and is an expansion and adaptation of the delicious backstory she came up with. Her work can be viewed at hentai-foundry.com


Part One - Preparation


"Your wish is granted. Fare you well." With these final words, the mystical dragon Shenron prepared to retreat into his dormant state for another year until the the Dragon Balls were again gathered together, but his rest was momentarily delayed by the angry cry of an enraged saiyan prince.

"What the hell are you talking about, you still haven't granted my wish!"

Shenron adjusted his hovering body so that his scaled face was directly in front of Vageta's, and stared at the diminutive mortal for several seconds before deigning to respond. "Yes, I did."

"You bloody well did not! I wished to be taller, and I'm still the same damn height I've ever been!"

"Taller is a relative term. Your stature now a full quarter inch greater than it was before. If you desired a specific hight adjustment, you should have specified it. As it is, my duty has been fulfilled. If your size truly is that important to you, you may summon me again in one year's time."

Vageta was unable to articulate a response before the dragon faded from his sight, paralyzed as he was with anger. It had taken years for him to find the opportunity to collect the Dragon Balls in secret before the Z Warriors thought to do so, and now he would be forced to wait yet another year for his dream to be realized. He was so damn tired of being forced to look up his entire life at beings who by all rights should be groveling at his feet. No matter what star system he visited, it always seemed the average hight of the populace was at least a foot taller than him. Today was supposed to be the day he would finally be able to look down on Kakarot and put an end to the humiliating sexual abuse perpetrated by the lowborn fool and his goonish friends.

Vageta was drawn out of his internal rant by the sight of the Dragon Balls beginning to glow brightly with ethereal light as they prepared to split apart and hide themselves across the globe. In an attempt to assuage his fury, the prince thoughtlessly lashed out at the nearest ball as it flew by him. He probably shouldn't have been completely surprised when the ball shattered into dust under the strength of his fist.

Vageta was left momentarily paralyzed for a second time, staring dumbly at countless crystalline fragments that now littered the area in front of him. In a burst of light, the immortal dragon again appeared before him, forgoing his normal dramatic entrance in favour of haste.

"What have you done you foolish mortal?" Shenron's voice boomed with enough force to make Vageta take a step back.

"Well I -"

"Puny insect! I should tear out your organs and feed upon them for this outrage!"

"It was an accident!" the saiyan cried, feeling truly terrified for the first time since Frieza's death.

"Do you think that such a pitiful defense will spare you my wrath, little monkey?"

Now totally cowed, Vageta desperately sought a means of preserving his life, and so displaying uncharacteristic humility, he dropped to his knees and pleaded with the reptile. "Please, spare me! I'll do anything!"

The dragon appeared unswayed by the offer, but as he drew back to lunge at the mortal, he paused, reconsidering it. "Hmph. Very well. I suppose there is a task I now need performed anyways. Succeed and I may not teleport you into a black hole."

"What would you have me do?"

"You must assist me in creating another Dragon Ball of course."

Vageta hesitantly asked what such a labour would entail. Adopting an expression akin to a smirk, the dragon explained that to reform one of his balls, he must take some of his essence and place it within a special container to incubate.

"Well that sounds simple enough. What exactly do you mean by essence?"

"My semen."

"Oh. And how exactly am I to assist in the process?"

"By destroying one of my balls, you volunteered to be the container. I will fuck and ejaculate inside your anus, where my semen will incubate and develop into a new Dragon Ball, just as a grain of sand becomes a pearl."

Vageta's expression now resembled that of a fish on land. Why was every monster he came across so fascinated by his ass? Taking in the the monstrous size on the magic beast before him, he tried to excuse himself from his unsavory new duty.

"That's impossible, I can't possibly fit you inside me."

"Perhaps not at this moment, but I have faith in your resourcefulness. You will return to this spot in one week to fulfill your role, or you will face my wrath."

With that Shenron again disappeared to whatever plane of existence he resided in, and left Vageta standing alone on the desolate plateau. After a few moments of internal debate, the saiyan let out a heavy sigh. He knew what he needed to do.


"Whahahaha, I can't believe you actually managed to piss off the only being on the planet stronger than you that hasn't already made you his bitch. What on earth did you summon him for anyways?" Bulma asked between fits of laughter over the situation her foolish husband had gotten himself in.

"Never mind that, are you going to help me or not?" Vageta had known she would react this way, but he didn't have many other options. Like it or not, in seven days he needed to take some immortal dragon dick up his ass or risk having himself transported to a particularly desolate portion of the universe, and as things were he would never succeed. Over the years his resilient saiyan physiology had allowed him to accommodate some truly impressive phalluses, but he was well aware of even his body's limits, and a ninety meter tall dragon was far beyond them.

"Well, it doesn't look like I have much choice if I don't want to be stuck finding myself a new husband. Without my help there's no way even an ass slut like you could handle Shenron's prick. A couple years ago we must have summoned him while he was in the middle of jerking off, because his dick was hanging out from it's sheathe, and it was bigger than me."

Bulma took a moment to enjoy the look of fear and apprehensions dawn on Vageta's face - he looked so cute when he was forced to shed his bad-boy attitude - and then told him to go to the medical room and prepare to undergo a preliminary inspection to give her a sense of how much more training he'd require.

Vageta responded to his wife's demand with an annoyed grunt, but did not hesitate to obey her, immediately getting up and making his way out of the room and walking briskly towards the clinic. He really didn't have much of a choice in the matter. After marrying Vageta, Bulma had continued to develop and improve her father's gravity-intensifying technology, at his behest, to the point that she was able to enhance gravitational forces on a microscopic scale though the use of nano-bots, . Once ingested in large quantities and allowed to disperse throughout Vageta's body, the technology offered an unparalleled training experience, but also put him at Bulma's complete mercy, as she could overload his muscles and render him weak as a kitten with the touch of a button.

The house's small but well-equiped medical clinic had originally been build adjacent to the extensive lab in order to treat Vageta's frequent injuries caused by over-training, but Bulma had since modified it so that it could serve other, more erotic purposes. Vageta entered the room and swiftly undressed, pausing to admire the sight of his heavily muscled naked body before climbing onto the examination table, which strongly resembled a reinforced gynecologist's chair. As he waited for his wife, he silently mused about the strange relationship between them. He had often thought it ironic that the very parts of Bulma's personality that had led to his current humiliating situation - her technical brilliance and hidden aggressiveness - were the parts that had initially attracted him to her. While greatly embarrassed at the casual manner with which his wife could dominate him, part of him loved her for it, as a proof of the strength of his mate. Kakarot's shrew of a wife may be more superficially frightening than his, to the point that Vageta almost didn't blame him for preferring to stick his dick elsewhere (though he hated the fact that 'elsewhere' was almost always Vageta's ass), but in truth she was barely stronger than an ordinary human. Bulma, however, was a genius the likes of which he had never before seen. Any child born with her technical brilliance and his own massive power would be unstoppable. Aside from all that, he was forced to admit, to himself at least, that his wife's kinky games made him cum like nothing else.

His thoughts were interrupted by the entry of Bulma, who was treated to the sight of a nude saiyan prince with his thick legs spread wide by the table's steel stirrups. This gave an excellent view of his puckered asshole and flaccid cock, which she was pleased to see begin to immediately swell in anticipation as her husband became aware of her presence. He might deny enjoying what was to come, but his body always betrayed his true feelings.

Walking to the far side of the room to retrieve a cart of prepared instruments, she wheeled it over to the side of the table, and proceeded to activate the table's restraint system, locking Vageta's arms and legs into their current spread-eagle position with robust hydraulic clamps. To complete her husband's helpless appearance she ordered him to open his mouth and gently forced an oversized red rubber ball-gag in, buckling the leather straps around his head. Having spent the entirety of her adult life surrounded by men with the power to destroy worlds, having one such being completely under her control and subject to her deviant whims was a sexual thrill that she never grew tired of.

With Vageta now properly trussed up, Bulma proceeded to don a pair of tight elbow-length rubber gloves, and turned her attention to the focal point of her examination - Vageta's asshole. She didn't concern herself with cleaning out his insides before starting - she gave a thorough cleansing via enema each morning to ensure he would always be prepared for any unexpected visitors to his backside. Scooping out a handful of thick lubricant from a small tub at her side, she used some to coat her right hand, and gently began to apply the rest to her husband's anus. His powerful sphincter reflexively contracted when it touched the cool gel, and Bulma couldn't help but marvel at its tightness. Despite years of use as an intergalactic cumdump, she still had difficulty working a single slim finger past his muscle while it was clenched. Chalking it up as simply another benefit of saiyan anatomy, she gave his ass a hard smack and ordered him to relax, then began slowly teasing and stretching his hole, eventually adding a second and third greased finger. As she began finger-fucked him with increasing speed, his dick grew fully hard, and when a fourth digit was pushed inside, he let out a muted moan through his stretched mouth.

Deciding he had been given enough of a warmup, Bulma withdrew her fingers and picked up a hefty glass syringe normally used for administering enemas, instead filled with a liter of the same thick lubricant as the tub at her side. Pushing the translucent cylinder several inches inside of her bitch's rectum for best effect, the genius inventor emptied the entire contents, giving Vageta's colon a liberal coating of lube in preparation for the brutal workout she was about to give his bowels.

Removing and discarding the applicator, Bulma wasted no more time, pressing her thumb and fingers together and working her hand into the open hole before her. Feeling Vageta's sphincter cling to her knuckles before slowly giving way, she asked how her slave felt having her fist up his cunt. Her reply was another moan, higher pitched than before, accompanied by a dribble of precum. Drawing her fingers closed to make a tight fist, Bulma threw her entire weight behind her encased forearm, twisting and shoving until it was mid-way into the mancunt before her. Vageta’s anal ring was beginning to feel like a tightly tied tourniquet at this point, so Bulma stopped to allow the muscle tissue to stretch out and accommodate her girth. For a minute she simply appreciated the sight of her usually mighty husband's swollen, cherry-red ass lips gaping open to accept her appendage, and the quiet whimpers of arousal that he failed to fully suppress. Feeling some loosening of the flesh constricting her arm she once again began to roughly twist and shove deeper into her lover’s tunnel. All the while she was opening and closing her hand into a fist to stretch out the inner walls of her playspace as much as possible. Soon Bulma was elbow deep in Vageta’s ass, and with that she began to slide her arm all the way back until just the widest part of her hand remained buried inside. She then began the process of long-dicking Vageta’s ass – with her forearm. Repeatedly she shoved all the way in to her elbow, and then drew back slowly, watching the ass’s swollen lips cling to her slicked up rubber glove with each stroke. After several minutes of this, she withdrew to the level of her wrist, giving both herself and her bitch a moment's rest before asking him if he was ready for the real fun to begin.

With that Bulma began to work the fingers of her other hand in past the sphincter ring alongside her already implanted wrist & hand. One, two, three fingers went in without a great deal of difficulty, but getting the rest of the hand in was proving to be quite an effort. As persistent as she was sadistic, Bulma continued to thrust and pull and shove at the straining ring of muscle until all four of her fingers and thumb lay alongside her buried hand inside of Vageta’s pussy. As she began working the widest part of her second hand past his anal ring, Vageta began to spasm uncontrollably, though he was too tightly bound to move more than an inch or two. With a last mighty shove, Bulma's left hand joined her right inside of her husband's ass, while at the same time Vageta experienced a powerful orgasm, splattering his own chest and face with an impressive volume of cum. But his mistress wasn't done with him yet. Bulma began to work both arms in unison, shoving inward and then drawing outward, slowly advancing her body into that of her slave. It looked as though Vageta’s ass was swallowing her forearms, and slowly but surely the hole into which they sank became deeper, and wider. It took several minutes, but by the end of the diabolical fisting the entirety of Bulma’s forearms were encased by the rubbery stretched out walls of Vageta’s bowels. As both arms withdrew, they left in their wake a completely opened up gaping hole with no resistance left whatsoever.

Selecting from the variety of tools at her side a graduated speculum normally used for inspecting the birth canals of cows and other large livestock, she inserted it into Vageta's open ass and cranked it open as far as possible. Vageta gurgled weakly as he felt his incredibly sensitive ass again being violated, but his concerns were unfounded as Bulma soon closed and removed the instrument without any further tormenting. "Well done Dear, you were able to reach nearly seven inches in girth. I think that's a personal best! Unfortunately, you're already near the limits of what your body can potentially handle, so if you want to survive your date with Shenron, it looks like you're going to have to let me make some fundamental adjustments to your body, alright?" After several seconds, Vageta, still gagged, hesitantly nodded.

"Excellent! Well, no reason to waste time, lets get you prepped for surgery!" Bulma exclaimed in an unsettlingly excited voice. She'd been wanting to alter her husband's body for ages, but until now she had never had a good excuse to. Pulling a small remote out of her pocket, she pressed one of its buttons, activating the nano-bots in Vageta's body and immediately rendering him unconscious.