Warnings and Disclaimer in prologue.
Monstrous Power
As Aizen was going over his notes, he froze. ‘Ichigo is a human. Ichigo has a hollow. Ichigo has a hollow with a living human body. No wonder he got strong so fast. If his hollow is eating tiny pieces of his soul Ichigo’s soul regenerates and, conversely, when Ichigo defeats opponents he gains power like an arrancar. Ichigo was in an endless power feedback loop.’ There was no way Aizen would permit Soul Society to get their hands on Ichigo. If he could get that kind of power, he wouldn’t even need the king’s key.
He had to speed his plans if he wanted to be able to convince Ichigo that his side was the better option. Until then he would simply have to wait. While he did not like it, he had gotten quite good at it.
P.O.V
When Renji woke up it was dark out. He looked around and saw Ichigo drowsing in the far corner, but he had no doubts that if there was an attack, Ichigo would be up and ready instantly. He shifted and Ichigo’s head came up and turned towards him. “You ok?” Ichigo asked and Renji nodded. “I don’t feel like I had a run in with Captain Kenpachi, at least,” Renji said and got Ichigo to smile. “You certainly looked it earlier,” Ichigo told him. The smile faded from Ichigo’s face and he looked slightly apprehensive. “Renji,” Ichigo said, “are you sure I’m not going to hurt you?” For a moment Renji had no idea what Ichigo was talking about, then he did and he nodded. “It isn’t like you’ll be attacking me, so I’ll be fine,” Renji reassured. Still looking worried, Ichigo asked “How do you want to do this?” After thinking for a moment, Renji decided the best bet would be having skin contact, so there would be less feeling of hostility from a foreign reitsu. “We should probably take our shirts off and sit back-to-back to make this as easy as possible.” Ichigo looked at him for a moment then nodded and removed his shirt.
As Renji was removing his own shirt, Urahara walked in. Renji was annoyed, “You said you wouldn’t interfere,” he reminded Urahara. Urahara nodded, “I won’t. I’m just here to help incase anything goes wrong.” Renji turned so he and Ichigo could sit together. “Now what?” Ichigo asked. “Let go of around a tenth of your reitsu first, and increase it by another tenth every forty-five seconds,” Renji instructed as he relaxed as much as he could. “Ok,” Ichigo said, and Renji felt Ichigo’s power like a fist to the gut. It was immense, and Renji figured that Ichigo had accidentally let go all at once. Renji adjusted and as he was about to memorize the feeling he was hit with another wave of reitsu, as strong as the first. Eyes widening, Renji was drowning under the force of Ichigo’s power. ‘If this is only two tenths of his power, I don’t know if I’ll survive.’ When the third wave of Ichigo’s power spilled over him, Renji could barely breathe and was slipping in and out of delirium. When the fourth wave came, his natural resistance shattered and, instead of felling like he was being crushed, he felt like electric currents were spilling through his body. Shivers wracked him and Renji fell limp against Ichigo’s back. ‘This is insane. It isn’t even half his power.’ The fifth wave intensified the sensation and Renji couldn’t stop pressing as much skin against Ichigo as he could manage. Renji was vaguely aware of someone calling his name, and then Urahara was in front of him.
“Do you need to stop?” Urahara asked urgently. Renji shook his head, responding only to make the distraction go away, so he could focus on the power rolling over him. Then the sixth wave hit him, and he was unable to stop the low moan from coming out of his mouth. The next thing he was aware of was that he had been moved to Ichigo’s lap and that he was rubbing his cheek against Ichigo’s chest. Renji was extremely grateful for this as the seventh wave hit, because now Ichigo could keep Renji upright against him. Ichigo’s power felt like cashmere or fur, rubbing on the inside of Renji’s skin and nerves. Renji felt floaty and very, very good; he was only barely aware of his hips rocking against Ichigo’s and of the soft grunts he was making. Renji saw Urahara move closer, but he only knew about Ichigo’s growl from the vibrations against his cheek. He felt a surge of satisfaction as Urahara backed up with his hands raised.
Ichigo had stretched Renji out and had lain atop him by the time the eighth wave hit. ‘Probably so I don’t float off,’ Renji thought bemusedly, barely conscious. Renji was unable to suppress hysterical giggles until the ninth wave wiped away his higher brain functions. All Renji knew now was that he was warm and safe, so when the tenth wave came he allowed it to carry him into oblivion.
P.O.V.
The sex smell Renji was giving off made Ichigo want to curl up around him and mark his territory. The human part of him was more practical, and he brought a damp washcloth to clean Renji. He knew he had scared Urahara when the man had gotten too close to Renji, so he would apologize to him once Renji woke and Ichigo knew Renji was alright. The thing Ichigo was most concerned about was the bite he had given Renji when he had come against Ichigo’s stomach. The bite had turned black and changed shape, and he would have loved to get Urahara’s opinion, except he should probably apologize first.
A soft knock made him turn to the door where Urahara stood. “Is it ok if I come in now?” “Yeah,” Ichigo said blushing lightly, “sorry about before.” Urahara nodded, “I understand. Is he ok?” Ichigo shrugged, “I think so. When he wakes up, I’ll ask.” Ichigo then asked Urahara what he thought about the mark on Renji’s throat. Urahara shook his head “I have never seen anything like this, but it seems harmless.”
Renji groaned then, and both Ichigo’s and Urahara’s attention focused on the waking man. Ichigo watched Renji closely for signs that he had hurt him but only found evidence that Renji was tired and ,possibly, hungry. “How do you feel?” he asked Renji. “I’m good,” Renji mumbled, “just keep doing that.” Looking down in surprise, Ichigo noticed that he was running his fingers through Renji’s hair. He considered stopping for a moment but decided that he didn’t really care, not when Renji was enjoying himself. Ichigo slid his hand up to Renji’s scalp and rubbed. He smiled as Renji made a happy noise and closed his eyes again.
Urahara cleared his throat softly, and when both pairs of eyes were on him, he turned his attention to Renji. “Are you feeling alright?” Urahara asked. “I think so,” Renji answered. “I’m just tired. It was intense.” “Renji,” Urahara began and then hesitated. Urahara stepped out of the room for a moment and came back with a hand mirror. “Take a look at your neck,” Urahara said giving the mirror to Renji. Brow furrowing in confusion, Renji maneuvered the mirror so he could see his neck without leaving Ichigo’s lap. At first he didn’t notice anything but then the mark caught his attention. “Huh,” Renji said as he reached to touch it, “what is it?” “I’m not sure,” Urahara admitted “but it appeared when Ichigo bit you. Does it hurt?” “No,” Renji answered distractedly “but it feels kind of warm.”
Ichigo reached out and touched it but moved away as Renji made a surprised sound. “Renji?” Ichigo asked worriedly. “It’s ok,” Renji said “it felt different when you touched it.” “Different how?” Urahara demanded. “It kinda tingled. Like when you get feeling back after your arm has been asleep.” At Renji’s words, Ichigo relaxed and went back to running his fingers through Renji’s hair. Ichigo was enjoying himself and, if the purring was anything to go by, so was Shiro. ‘Why shouldn’t I be happy? You’ve picked a worthy mate.’ ‘What do you mean?’ Ichigo asked Shiro. ‘He is a fighter and he can obviously think for himself, but he also knows that you’re King,’ Shiro replied smugly.
Ichigo’s attention snapped back to Renji as he shifted in Ichigo’s lap. Ichigo was unable to stop the soft groan as he felt his cock swell. “Renji, you might not want to do that,” Ichigo warned. When Renji rubbed his cheek over Ichigo’s crotch, Ichigo grabbed him and maneuvered them so that Ichigo was pinning Renji down. Ichigo pressed biting kisses across Renji’s jaw and smirked as Renji groaned and tilted his head back. Ichigo moved his mouth to the mark on Renji’s neck and swiped his tongue across it. Renji surged up against him and whimpered. Eyebrows raised, Ichigo ran his tongue across the mark again, much slower this time. He was rewarded with low, needy, sounds and Renji splaying his legs so they could rub against each other better.
The sound of footsteps made Ichigo jerk his head up and fix partially blacked eyes on Urahara. Urahara gestured to the door and move towards it again. Seeing this Ichigo turned his attention back to his squirming mate.
P.O.V.
Renji was fighting with the part of himself that had kept him alive in Rukongi. It was screaming that he was showing weakness, that he would be hurt if he didn’t fight. Another part of him, one that was small and quiet, was whispering that Ichigo would protect him, would offer safety. Renji was tempted to agree with the second voice, if only because he had a better grasp of the power Ichigo possessed. If Ichigo had wanted to hurt him, there would have been no way to prevent it.
Pleasure wiped the thoughts from his mind as Ichigo placed bites and licks over his inner thighs. The irrational fear gripped him as Ichigo moved towards his cock and swallowed him. Renji relaxed and ignored the mantra of ‘teeth’ on the back of his mind. The mark on his neck was still tingling and he allowed himself to bask in the pleasure that Ichigo would claim him in such an obvious way. Renji gave a sharp grunt as he felt Ichigo rub against his perineum. He jerked as Ichigo pressed again and he started to come. Dazed, Renji accepted the kiss Ichigo gave him. “You looked far away for a moment,” Ichigo said as he ran his hand up and down his side. “Just thinking about this,” Renji replied waving toward his mark. He moved so he was facing Ichigo’s crotch and slid his mouth around Ichigo’s crotch. He felt Ichigo’s fingers start running through his hair again and settled down to giving Ichigo head. When Ichigo came he was quiet, a low grunt the only sound he made. Ichigo gathered him up and kissed him again before tucking Renji into his side and curling around him.