A/N: Welcome again!

Title: Animalistic Instincts

Pairings: HaremXIchigo (GrimmXIchi, UlquiXIchi, NnoiXIchi, StarkXIchi for sure.).

AND there will be OOC goodness (Okay so hollow pheromones get everyone all hot and bothered around here)

Warning: yaoi, noncon, dubcon, blood, violence, swearing

And I'm borrowing the amazing bleach characters for fun never profit.

And ugh, I love Ulquiorra but I hate spelling his name! I've fixed them here, but bear with me, I honestly wasn't intending to write this one, so you know. Damn these ideas swirling in my head! This one may be getting an overhaul eventually. Maybe when I finish Ashes I mention on later pages, this story has evolved from originally being a few chapters to something else, so there are some things that I need to run back and relace through the first chapters. :)

Chapter One: When It Surfaces

Determination wasn't something that Ichigo was unused to at all. Here he was, standing on the sands of Hueco Mundo with four of his five closest friends. And he was here to get the last one. The Menos Forest had been a challenge, but here they were. Looking at the vast space in front of them. No one spoke for a while, looking ahead. Nel was clinging to his leg, with the other two seemingly dim witted arrancars not far behind. Despite her being an arrancar, he had become attached to the kid, and he would not let her get hurt. Just like his four friends and Inoue.

Don't get too comfy, king, came an unexpected voice in his head. He pushed it aside. What was he up to now? Their agreement had been he wasn't supposed to die until he surfaced again. Why was he whispering to him now? Bastard was probably just messing with his head again. He loved to do that on a daily basis sometimes.

Rukia caught the deepening furrow of his brow and looked at him expectantly. "Hollow stuff," he muttered and took a step forward.

Then he was on his knees, knocking Nel flat as he fell. "Ugh, what?" was all he had time to mutter before his eyes flashed and black began creeping across them and he buried his head in his hands with another groan.

Everyone seemed to have converged behind him, Rukia dropping her hand on his shoulder.

"Ichigo?" she said and then he started laughing, but it wasn't Ichigo's voice. It was a lilting, high, nearly maniacal laughter that made everyone back away from him. He turned sharply and locked eyes now black and gold, onto Rukia's violet eyes. A maniacal grin split his face as he continued to laugh.

"Oh fuck, king!" he said, standing slowly, those eyes rolling over all those present. "Fuck, man, what the fuck are you doing not shagging at least one a'this bunch?"

None of them knew how to react, the eyes were different, but otherwise, it looked like Ichigo. Then he snapped his head to the side like he'd been punched. "Fuck you, Ichigo! No fuckin' way. I'm stronger than you here, dumb ass."

The laughter pealed out of him again as a couple more snaps of his head. He started giggling and stared at the group looking at him with gaping mouths. "Who's soul should I eat first, king? Hrm? They all look sooo tasty."

There was a screech and Ichigo's body convulsed. "Fuck you, fine, what-the-fuck-ever. Give me some time, and I'll take what I want, king. If you stay here, you're mine. At least until they get here."

He stood there for a minute, a full body shake taking him over and slowly the black in his eyes began to recede and fell face first into the sand. Everyone exploded forward to help him sit up, Nel fussing over Itsygo, licking him even though there were no visible wounds.

"Ah!" he gasped and sat up, nearly cracking heads with Ishida. He looked around and breathed in. "What…oh hell, that bastard," he said, balling both fists up and slamming them into the sand at his sides.

"Ichigo?" Rukia asked softly, still not sure if he was normal but he fixed her with his trademark scowl and she knew that he was himself. "What was that?"

Ichigo rubbed a hand through his orange locks. "My hollow. Somehow he managed to wrest control away, and I don't know why. I got it back but only because he wanted to go back for some reason. I never know what that bastard is going to do."

They all looked at him. "Nii-sama told me, Ichigo, it's okay," she said patting his hand softly, but the others exchanged glances over him.

"He's the reason I'm vizard. I kicked his ass in my inner world and got the power of a hollow, though for brief periods," he said, reaching up and manifesting the mask for a moment so they could all see it, then willing it away. However, as soon as he did he felt a wave of incredible dizziness and found himself falling into someone's arms behind him.

"What's going on?" he wondered out loud.

"Maybe it's being in Hueco Mundo? He did say he was more powerful here," Renji offered, kneeling beside him.

Nel crawled into his lap and began to sniff him urgently. He looked down at her as her nose seemed to sniff everywhere up his chest neck then she tried to sniff at his crotch and he grabbed her by the head and lifted her up, turning beet red. "What the hell, Nel?"

She smiled. "Itsygo smells good. Smell like…like…momma hollow."

She then latched her arms around his neck tightly. "Momma hollow, yay, Nel is happy!"

Ichigo frowned, garnering strange looks from those around him. "N-Nel, what are you talking about? I'm not a momma hollow, I'm human! A boy human, remember!"

Nel sat in his lap, curling against his chest. "You smell like momma hollows now. Daddy hollow will come find you soon. Nel hopes it is someone Nel likes. Nel doesn't like to share Itsygo."

Ichigo looked up frantically between his friends. From a distance they heard the keening of hollows, and they were getting closer. Within a few minutes there was an all-out invasion, it seemed, most of the adjunca class hollows of all types. Before long, though, they were all panting and the hollows were gone, with only minor injuries among the group. Nel was steadily licking a long cut on Ichigo's arm and he didn't have the heart to shake her off. Or maybe it was because a huge wave of exhaustion was crashing into him. Most the adjuncas had been barely sentient, and seemed to have a one tract mind on getting to Ichigo.

"What the hell?" Ichigo breathed, as he flopped into the sand again. Nel once again crawling into his lap and sniffing at his neck. He found Zangetsu too heavy for some reason so he dropped it to the ground.

"Itsygo smells so strong now after the fight. Nel watch as you kill the ones that aren't worth Nel's Itsygo," Nel said smiling into his chest. "Itsygo need strong alpha to make strong baby for Nel to play with!"

Renji and Chad both sniffed the air, finally catching a whiff something on the air. Renji looked at the raven haired Quincy. "Ishida? Do you smell that?"

Ishida moved forward to where they were standing, the strange smell nearly overwhelming him. "What is that?"

Thinking about what Nel said about Ichigo smelling different, all three moved over where he was, blinking and stepping back, now easily overwhelmed by a strong musky, sweet odor. "Ichigo, you smell…weird," Renji offered with a quick of a tattooed brow.

Ichigo frowned, he didn't smell anything at all, which was kind of strange in itself. "Like what?"

Rukia moved forward and finally smelled it. "It's…it's like cinnamon and…and…the smell after rain…"

"That's Itsygo's smell! He's powerful, Nel is so happy he's momma hollow, not daddy hollow. Nel likes watching them fight over Itsygo," Nel said sighing into his neck. She looked up and grinned. "Itsygo, is Nel your cub? Please?"

Ichigo was still extremely confused and nodded slowly. "Sure, you can be my cub, I guess…"

Nel clapped excitedly, then grabbed Ichigo's arm and bit into his forearm and strong reiatsu flared around them for a second. Ichigo was too shocked to do anything and then she licked it, healing the wound almost immediately, but leaving behind a strange mark on his arm.

"There, Nel has momma Itsygo now!" she said, returning to snuggle into him. Ichigo swooned falling onto his back, his eyes rolling up into his head.

"Ichigo!" Rukia said running toward him. Nel growled at her, holding onto Ichigo's black shihakuso protectively.

"You no touch Nel's Itsygo momma," she said, her eyes flaring with reiatsu.

Rukia looked to the others. "Just what the hell is going on?" Renji asked slowly, moving to stand by Rukia.

Ichigo's body jerked and the manic laughter came out of his lips again, but he didn't get up. His head rolled over, and the black and gold eyes were back. The grin split his face in an unnatural way, and slowly a white mask started to form over his left eye. Nel continued snuggling into his chest, not bothered by the emergence of the inner hollow in the least it seemed.

"Hehehe. Yer such a stupid bunch, bringin' our half hollow ass to Hueco Mundo. Oh my, this is gonna be good, you know that? Fuckin' awesome. You get to watch him unravel and I'll fuckin' kill you all, maybe, I might not. Oh, here come the stronger ones. Ya ain't got time to run." He glanced down and ran a hand over the small arrancar's head. "Jeeze, saddled with a fuckin' kid that I didn't rip outta my own gut. Tch, at least Ichigo might survive longer it since he's got a cub, even if none of them take with his stubborn ass."

Around the four very confused figures there was the sound of multiple sonidos and they spun around seeing they were surrounded by arrancars. Rukia locked eyes with one she knew, the blue haired Grimmjow.

"Well, well, what have we here?" he asked. Beside him was a pale slender male that looked like green tears were painted on his cheeks that Chad recognized.

Rukia's hand tightened on her sword hilt.

"It would be ill advised to do that, shinigami," the green eyed espada said with no expression. "You will come with us or be destroyed. This invasion will stop now."

Ichigo's body began to laugh, drawing the attention of those around him. "This is great! Holy fuck, Ichigo, king man, you are so fucked!"

Grimmjow and Ulquirro both looked at him with confusion. "The hell?" Grimmjow muttered before locking eyes with those shining gold and black eyes.

"Kitty cat!" he said, with a wicked grin, still petting Nel's hair. "Sexta-sama, growl for me, and show me where yer name comes from?"

Grimmjow stepped forward and blinked, a growl building in his throat before he knew it. "What the fuck…is that…he's a fuckin…holy fuck."

Ulquiorra arched a brow and looked at the shinigami. "You brought him here? Were you insane?"

Rukia and Renji looked at him. Rukia drew her sword and pointed it at him. "What? What's happening here?" She asked frantically. "What's wrong with him? Why's he acting like this? And what's the weird smell?"

Grimmjow started laughing, a hearty laugh that seemed to go on forever. He stood up and wiped the tears from his eyes and looked at them.

"You seriously don't know?" When he was met with blank stares, Ichigo's strange hollow voice giggled.

"Of course they don't fuckin' know, like I would fuckin' tell king here about it. Never expected to end up in fuckin' Heuco Mundo with his human ass," he said. "Well, I want Ichigo to experience the fun of being a beta bitch, so I'll fuckin' catch ya later!"

Ichigo's eyes cleared and he shook his head. "What…" he muttered looking up at them totally surrounded by arrancar. Nel sat in his lap, nearly purring in pleasure, and he was staring at Grimmjow and Ulquiorra.

"Oi shinigami, tell me, you going to enjoy this as much as we are?" Grimmjow said sneering at him.

Ichigo reached and grabbed for Zangetsu to find the blade gone. He looked around. "What? Where's Zangetsu, did you take him?" he asked looking around frantically. He sensed the Zanpakuto, but it wasn't mainfested anymore. And he was so weary, like all the strength was being sapped from his limbs, and as he looked at the two Arrancar in front of him, he wanted to fall to his hands and knees before them. He shook his head. What the hell?

There was a snort from Grimmjow. "Of course its fuckin' gone. You can't fight when yer about to get yer beta ass taken."

Ichigo did not like the sound of that. Behind him, a fight had broken out between a couple lower ranking arrancar. Grimmjow looked at them, then charged a cero and blasted both of them away. "You lowly fucks keep it up, I'll cero you to oblivion. None of you got a chance in fuckin' hell. This fuckin' beta is espada level."

There was grumbling from the arrancar and Grimmjow smirked.

"You guys fuckin' getting' it yet?" he said, glaring at the wide eyed shinigami and humans.

No one said a word as Grimmjow sauntered over to where they stood, hands in his pockets. "Question is, do I tell you, or just you find out on your own? I'm sure he'd love you witnessing what we'll end up doing to yer precious shinigami? Yeah, I like that one. Just to see the look on your faces."

"Grimmjow, we should send them back or take them to Aizen-sama. Aizen-sama will want to know that the substitute shinigami is a hollow beta, about to enter phase," Ulquiorra said from beside them. They hadn't even seen him move.

Grimmjow nodded. "Aight, that's true. I'll get the bitch."

Ichigo held tightly to Nel as Grimmjow stalked toward him. "Stay away, Grimmjow, I swear, I'll…" The threat was empty, of course, Ichigo sucked at kido and for some reason his energy was being sapped from within. Nel jumped off his lap and ran to where Rukia and the others, grabbing onto Rukia's leg. He reached out for her despite this, somehow feeling very strongly attached to her.

"Nah, ya ain't fuckin' goin' nowhere."

He reached down and with one arm hefted him easily and tossed him over his shoulder, eliciting a frustrated moan from him. "Put me down, I can walk, you bastard!"

Grimmjow proceeded to whack him soundly on the ass, getting a surprise yelp out of him. "Oh, I like that," he said, tightening his grip around his waist. "Beta bitches don't walk once they're chosen, shinigami. Don't want another arrancar trying to drag yer ass off before I get to have it."

He walked in front of the others, struggling against the iron grip around him, until Grimmjow crushed him harder getting a strangled scream out of him. "Quit fuckin' struggling or I fuckin' break yer goddamned ribs." Ichigo froze, knowing that he was definitely not in the position to argue with the now seemingly much stronger espada.

"Put him down!" Rukia demanded. "What are you planning on doing with him?"

Grimmjow looked over his shoulder at her and the others as they were being led behind him. Ichigo's eyes were wide, and Rukia could sense his rieatsu was receding, like it was being suppressed, which was something considering Ichigo had such a vast reserve of rieatsu. He obviously could tell something was happening to his powers, first is zanpakuto was gone, and now this… Rukia had never seen fear in his eyes. Determination, grim resolved, confidence, even before the moment he took her sword into himself willingly. Even before he had power to back up all that determination. But now, there was a glimmer, tiny, but there.

"What we do with all our beta bitches. Fuck them into submission," Grimmjow said with a wicked grin.