A/N: Here it is, the side stories for my K.O.W.I. series, and the first chapter will be the missing lemon, as well as a little something at the end to put a little something in motion for the main story. Keep in mind, what happens in these side-stories are canonical to the main fic.

I do not own Highschool DxD, Vocaloid, or Fate series, as they are the respective properties of their respective owners, publishers, creators, and authors. Enjoy.

King of Wrought Iron Book 2: Guardian of DxD-Omake Side Story

Side Forge One: Vocaloid's New Tune

Kyoto Public Park

Shirou P.O.V.

The utter silence that followed my response was a surprise, so looking at the four of them, I suddenly had my brows furrow at the looks the four disguised members of Vocaloid were giving me. What is going on here? "...uh, did I say something wro-HMMPH?!" I suddenly found myself being heatedly kissed by none other than the Diva of the World, and the other three were dragging the two of us off! The hell is going on here!? Before I saw just WHERE the quartet was taking me...oh shit...Susanoo is gonna kill me…

They were dragging me to a love hotel...and I swore I saw hearts in their eyes for a moment as they heatedly dragged me off. What the-?! Oh shit...Suddenly I recalled something that made me feel like beating myself up for forgetting. [Hero's Charm]. Since they weren't consciously aware of how I was saving them up until now, the second they realized what I'd been doing, the effects must have kicked into overdrive and hit them like a Root-damned sledgehammer once they became aware! I began lamenting this realization as they dragged me into the lobby, with a surprised male receptionist manning the desk.

I noticed that the receptionist at the front desk was a Yokai in disguise, and that Yowane-san had told him something that made his eyes widen as his face paled an ashen white at that, but I couldn't quite hear what was said as he simply gave her a key and the four of them dragged me off as I was literally being grabbed by Hatsune-san as she, along with Kasane-san and Akita-san, guided me into the room after Yowane-san locked the door behind us.

As soon as the lock clicked shut behind us, Hatsune-san jumped into my arms as both Akita-san and Kasane-san yanked my shorts down. Not even bothering to wait, the two began to fondle my large balls while rubbing up and down on my eighteen-inch long and four-inch around shaft as Hatsune-san continued to rub herself on my hardening shaft! The three of them were all really horny! And Hatsune-san was SOAKED between her legs! What the hell is-

"Oh Shirou-kun...~" I finally broke away from Hatsune-san's liplock to face Yowane-san, only to find her lips pressing to mine! Not only that, but she forced me to drink something, and right as she did, my crotch suddenly felt on fire, my mind...growing hazy...can't...think…

Third-person P.O.V.

When Haku walked into the room, she grabbed a bottle of something the Yokai Faction had in the room. This was one of several love hotels the Yokai Faction ran, both for the event of a Yokai entering their heat and for clandestine meetings between members of the Shinto Pantheon and the Yokai Faction for discrete romantic get-togethers. Neru was actually born as a result of one such discrete encounter between her 'father' and mother.

While Shirou was confused about what was going on, it wasn't just the [Hero's Charm] affecting Vocaloid, but also the fact that Neru was actually in heat and his display of power, coupled with his primordial blood he inherited from [Gaia] caused the four of them to begin to enter estrus. When Shirou answered Miku's question, it was actually her trying to avoid doing something simply because her body was telling her to do it. However, what none of them were aware of was that while that little drink Haku gave Shirou via direct mouth-to-mouth administration was only meant to help increase the chances of producing enough seed to conceive children between humans and supernatural beings, it had a bit of an unintended side-effect they did not expect, yet was a welcome surprise…

Shirou's body suddenly began to heat up, as angry-red lines of primordial fire began to crack from beneath his skin, arcs of electric sparks jumping off his skin, and his impressive girth gained a more monstrous size, causing the four women to suddenly soak themselves through their pants in anticipation as the sudden surge of power emanating of the Sword Forger's body along with the alpha male aura he emitted from his barely restrained power ignited their cores to twitch like crazy in response.

For the next three days, the four of them were having the most intense hours of continuous marathon sex in their lives, as Shirou's primordial blood reacted to the Yokai Faction's drug meant to release inhibitions by sending him into a breeding frenzy with the overriding instinct to impregnate any woman within his sight for the next three days until the Sword Forger finally unloaded enough to bloat all four of their bellies with how much thick, potent semen he packed into all four of their overly stuffed wombs as the floor itself was caked in several puddles at least six to eight inches deep of their mixed seed, girlcum, and virgin blood of their deflowering.

Miku was the first to receive his engorged rod, and Shirou, while normally fairly gentle, in his frenzied state where his mind's only concern was to sow his seed, was far from gentle, but not violently rough. Miku's hymen was torn in a brutal fashion as his normally eighteen inches in length and four inches around girth had swelled to nearly a full thirty inches, a full foot longer in length, and it's girth doubled to eight inches. His balls, which had already been fairly above the norm, had swollen and bloated as his refractory period was essentially reduced to near-zero, and desperately needed release!

Miku, had suddenly had her mind utterly overwhelmed as what was meant to release his inhibitions did far more than that. She was split open and utterly ruined for anyone else from then on, and she tightened instinctively, clamping down as her body was fucked through her cervix, and literally railed directly into her womb, as Haku continued to make out with Shirou while Neru and Teto went from just fondling his balls to outright slurping them in their lust-addled minds from the sheer male musk he suddenly emitted that caused their minds to cease functioning outside of the instinctive drive to conceive.

After Shirou's balls had swollen to levels of being over five times their normal size, they suddenly began to gurgle loudly for a minute as they churned audibly, before he finally popped his cork, straight into Miku's fertile and eagerly awaiting womb, her core twitching like mad as she was utterly stuffed by thick, hyper-fertile spunk, yet the energy imbued even into his seed made her body have an intense impregnation orgasm, thirstily draining and bloated as he came entire buckets of thick ropes, yet he didn't stop. His seed was near scalding hot and thick, like molten metal and sparked with arcs of electricity zapping her innards as the electric heat utterly dominated her into submission from his power being released more than usual.

He was pumping an impossible amount of seed straight into her womb, overflowing to plaster directly onto Teto and Neru's heads and faces, caking their upper bodies as they climaxed just from the thick, pungent scent alone of his release along with Yowane as she was fingering herself during her heated liplock with Shirou. He flooded his seed, much like a Tororo would, and he didn't stop. Miku's face morphed into an ahegao as her eyes first crossed in pleasure, before rolling back into her head until only the white could be seen as her tongue completely shoved out of her mouth and began lolling as it draped down her chin in total ecstasy, her legs locking around his hips, her ankles keeping him inside her for the first five minutes, before twitching as they extended and her toes curled as they suddenly extended and locked in sheer blissful, mind-shattering fertilization orgasm.

He was still pumping, even as he was thoroughly breeding her, yet his mind was still hazily clouded with simply the pure instinct to make these girls his women. Shirou's body wasn't simply releasing his seed, he was also unintentionally shoving large amounts of his own prana into their bodies via his semen without meaning to, essentially performing a tantric prana transfer ritual guaranteeing pregnancy, which his body would have done even without the need to drug him. Unless the woman in question suffered some circumstances or took measures to avoid it, they were going to be receiving a bun in the oven if they didn't pull out. But this situation was exactly what Vocaloid wanted from their former bodyguard.

As Shirou kept his thrusting as deep as he could into Miku's tight, formerly virgin folds as he kept thoroughly breeding her while her womb twitched constantly from severe impregnation orgasm after impregnation orgasm, her body had inadvertently ovulated and released seven eggs in one go between both her ovaries, with each one heavily caked in his seed that completely overwhelmed her, as dopamine and oxytocin flooded her mind from the continuous release of endless seeding gave her a euphoric state of mind whilst constantly bouncing atop his gargantuan sized cock.

Shirou kept his relentless bestial rutting of Miku's permanently ruined folds as her body still squeezed his steel-hard length of leg-thick shaft for the next four hours straight, barely slowing down and only letting Miku go when his hazy mind recognized she could not continue safely without hurting herself. He put her down on the bed, pulling his still-painfully hard third leg out from her vice-tight pussy that still squeezed him so hard, she was still trying to wring anything left in his urethra out as her bloated stomach barely seeped his thick seed as it oozed achingly slowly from her stretched and permanently ruined hole.

Miku had long since passed out from the brain-melting bliss-filled euphoria as Teto and Neru continued licking his thick nut-sludge off of each other as Haku then walked to his front, bent down in a squat, her legs spread to both sides, and began cleaning off his still very-much eager rod, before Shirou erupted into her mouth with a roar, Haku's cheeks suddenly stretched out by the sheer explosive release of ejaculate and desperately began swallowing in a bid to not drown in his baby batter, before Shirou then grabbed her, spun her around, and slammed her soaked crotch onto his rod, ripping her ruined panties as he forcefully entered her still virgin folds, her face locked in a silent scream as he moutrh was in a perfect 'o' of pleasure as her virginal blood mixed with the seed he was still releasing right into her body as he began to rail her in a standing fuck, her legs held open by his grip as Teto and Neru got a show before crawling over to wait their turns.

The two petite members of Vocaloid fondled, slurped, and stimulated the length of Shirou's overly-engorged shaft that didn't fit inside and his still-backed up balls as he did to Haku exactly what he just finished putting Miku through. Her moderately-sized tits began to bounce along with her tight and very much eager body as he plowed her fertile cunt and proceeded to bloat her belly and over-stuff her womb in the course of a four-hour continuous release as she began her silent screams of bliss from getting knocked up with a whopping full eight eggs released, four from both ovaries, conceiving octuplets in this one session as her body happily and blissfully submitted to a dominate male partner mewling in absolutely blissful euphoric pleasure from the continuous plowing and fertilization orgasms.

As his second round finally finished, Shirou moved Haku to lay right next to Miku's prone form as the blunette began to finally stir, but her lower legs were so sore and exhausted, she couldn't even move herself at the moment, as she began to feel warmth upon her navel as she saw Shirou's brand cooling after marking her his woman, her hands feeling blissfully the brand as she could sense the new life seeded within her instinctively rubbing her stomach as Haku next to her had the exact same thing occurring to her as she recuperated from the intense breeding she submissively received.

Behind them, as they were incapable of turning to see it in the after-glow of their intense fucking, Shirou lifted up both Neru and Teto, confusing them both, until Shirou's aura grew, causing him to sprout two additional arms, a second equally gargantuan cock, and his balls swelled as a third joined them, causing both the Kitsune and the Lesser Goddess to shoot their eyes wide opened, as his girth also swelled slightly thicker, causing them both the tremble in nervous anticipation as Shirou placed two hands on both their hips, lined them up, and rammed them both to the hilt, bulging their taught, petite bellies with an impression of his monstrous girth as he began to slam himself into their tight, vice-like wombs, wearing them like a condom as he proceeded to rut them as well, their formerly virgin blood trailing down his twin shafts in rivulets.

Teto and Neru were blissfully screaming vocally as Shirou was railing the two at the same time, the very audible clapping of flesh slapping against flesh as both their tight, petite little bubble butts bounced and slapped against his monstrous girth splitting the two in such a manner as to utterly own their bodies, and Shirou's slime-coated cocks were completely intent to ensure his musky scent was forever embedded within their bodies, marking them as his forever, and both the five-tailed Kitsune and the Daughter of Futsunushi were more than happy to accept the breeding.

Shirou's rutting lasted for nearly thirty minutes before his balls began to gurgle as they churned, then clenched tightly as he slammed his twin rods to the deepest depths he could, Neru and Teto shuddering as they felt his thick, hyper-potent seed FLOOD their wombs. For Teto, it was highly blissful, the feeling of a being of steel with strong connection to swords, much like her and her father, being the one to sow his seed into her fertile and very much eager womb to bare strong children. Her body, however, had two eggs released from both ovaries, resulting in quadruplets being conceived in that instant as she blissfully shouted her approval for the dominant way Shirou took her.

As for Neru, her Yokai heritage sensed it in its entirety. His highly dominant nature and excessively potent seed, intermingled with his highly dense magical energy, intently took her womb, forcibly stimulated her ovaries into production, and caused her to release two eggs. She conceived twins right there, just from his energy alone forcing her body into happily submitting to him, and Neru was loving every second of it as her mind was overwhelmed by the blissful afterglow of her animal instincts being sated to bare a strong child.

The two had been only plowed for two hours, though, since their bodies were smaller and not as sturdy as Haku's or Miku's, so Shirou set the two down on the bed as well to rest for now, before turning his attention back to Miku once again, only instead of taking her vagina again, he took her back door, claiming her anal virginity along with Haku's as the two were forced to full wakefulness as his twin steel-hard rods penetrated their puckered rears, stretching them out roughly, but not painfully so.

By the time he finally calmed down from his breeding frenzy, he'd essentially claimed their bodies in every way possible, their throats, their asses, their pussies, and even their chests, backs, legs, and faces, they'd all been plastered and coated in such thick layers of his semen, he'd essentially completely claimed them as his women, and they were happily clinging to him as he finally exhausted himself, laid down on the bed, with Vocaloid sorely, tiredly, and completely spent, cleaned his finally softening girth as he started to begin reverting back to normal, but were completely and utterly submissively worshiping his length before sleep claimed them after their three-day marathon breeding session…

When they finally woke up, they showered separately, cleaned themselves up, and got dressed before leaving the love hotel, but not without a little something to remember this encounter for the rest of their lives, in the form of a series of new lives forming within their wombs, and a brand on each of their wombs, marking them as their new man's women…

Scene Change

Kuroka P.O.V.

"...nyaau~" I purred out seductively as my body reacted to what I just got a front-row seat to watch hidden within the room as I found the one I would most certainly love to restore my clan with. Making sure to conceal myself to not be detected, I followed my target to Lady Amaterasu's palace, before seeing him leave a few hours later with two individuals. The first was obviously a well-made golem, but one that, surprisingly enough, had a soul. The other was a comatose teenage girl who seemed to be heavily injured, yet this woman was being carefully moved to avoid aggravating her obviously broken bones.

I didn't need to be a master of Senjutsu to tell this girl was dangerous. The fat that she was only approached with Tengu in hazmat suits told me all I needed to know about her grayish-purple skin tone. Her body was poisonous. Yet my mark never seemed to care, or rather, it seemed he was immune to poison in its entirety! This is certainly a helpful piece of knowledge to know. If it's a hereditary trait, then my clan may never need worry poison by assassins as a way to die! His worth as a potential mate in my eyes just went up, especially when I sensed what he possessed.

The True Demon Sword [Muramasa]. I don't know where he got it or why it chose him, but the fact he has that sword is an absolute plus in my book . Following closely enough to hear their conversation, I get the name of my target finally from listening into their conversation...Emiya Shirou...I suddenly had to pull back, as somehow he sensed me and turned right at my direction!

Could he sense me somehow? Impossible! I'm using Senjustu-enhanced Youjutsu to hide my presence, and yet he could still sense my general location somehow?! The only way he should do that was if he-?! Wait...Muramasa was said to have a skill that could imitate Senjutsu by sensing the flow of natural energy in the environment...if Emi-nyan was his descendant, then…

Turning around, I felt the need to let the Khaos Brigade know of this. Surely that racist asshole Cao Cao will understand he owes me for this one, finding a potential recruit or two to his 'Hero Faction' he missed. After all, how often would I get the chance to find something like this to lord over the Great Cao Cao of all people?