Pulled from my mind's stash of irrelevant details: Renji doesn't wear his lieutenant's badge for most of the Thousand-Year Blood War arc, but in chapter 622 he suddenly appears sporting it.
The moonlight filtered in through the barely open window, not that it mattered to Renji, not when he had his OWN headband wrapped firmly around his head and pulled down to cover his eyes. It was his own fault, he'd been annoying all day but...Truth be told, this was sort of the outcome he had been longing for. This time seemed different, you had an aura of anger flowing from your body. Maybe he pushed you too far this time.
He knew he was right when you tugged his obi, ripped it from his hakama and fastened it around his wrists.
"You're going to stay still and be a good boy for once." You demanded and Renji's breath caught in the back of his throat. A surprisingly delicate finger slid his hakama down along with his underwear. You kept undressing him with painfully slow precision until he was stood in the centre of the room completely naked. His cock twitched in anticipation and a small pearl of precum decorated the tip.
A hard shove forced him backwards until the backs of his legs met the bed. His chest heaved and he wanted nothing more than to reach out and touch you but it was useless, he couldn't see and he certainly couldn't move his hands to touch you either. He had to admit to himself...He was right where he wanted to be.
"Look at you, leaking already and I haven't even touched you." Your voice was soft despite your harsh words.
"Now, stay still and behave or I'll tie these legs together too." You purred with a cruel slap to either one of his toned thighs.
"Shit..." Renji grimaced and despite the fact he couldn't see your face he swore he could sense the smirk that was on your face. He could picture it, those perfect lips of yours tugged into a malicious smirk just for him. Renji could only guess by the sounds of shuffling somewhere in front of him that you had lowered yourself to your knees. His suspicions were clarified when your warm breath fanned over the tip of his cock.
"My poor boy, so needy..." You cooed
"O...Only for you." Renji replied too quickly but a puff of air brushed up against the tip of his cock and he thought it sounded like a huff of approval.
"Right answer." You whispered and then you licked a slow, precise stripe from base to leaky tip. Renji took his bottom lip into his mouth and bit down to muffle his sounds of pleasure. Your tongue traced the outline of the bulging vein on his thick shaft and he felt you stop when he bit down too hard, hard enough to draw blood.
"If you hide your sounds from me, I'll stop." You warned
"F...Fuck, I'm sorry I'm sorry." Renji pleaded
"it's alright, good boy." Your voice came out smooth and then you swirled your tongue around his sensitive tip. He felt you lick up the bead of precum and a groan fell from his parted lips. When you wrapped your velvety lips around his tip he let out a moan. The tie around his wrists seemed almost too tight now as you took his entire length in your mouth.
"Ah..." He sighed and when the tip of his bulging cock brushed up against the back of your throat he felt your throat tighten.
You found a rhythm he seemed to enjoy, bobbing your head up and down, making sure to take him in as far as you could without gagging. The saltiness on your tongue made you throb in between your legs but you were determined to feel him cum down your throat before you attended to your own needs.
A strangled moan left his lips when an unexpected hand cupped his balls gently. Renji couldn't help the way his hips thrusted upwards to meet your lips but he was thankful that you didn't seem to mind.
Soft fingers worked his sack and when you hollowed your cheeks Renji cursed under his breath. He wanted nothing more than to look at the way you took him in. He could just picture the way you looked up at him with hooded eyes.
He couldn't help but squirm, the sensations were all too much and not enough at the same time. His moans were becoming ragged and shallow, the way they always did when he was getting ready to cum.
"Oh...Fuck, baby...I'm close." Renji admitted and a pathetic whine left his lips when you hollowed your cheeks even more and slurped his cock with more vigor. The sounds coming from your mouth were obscene and he felt a familiar intense pressure building up, threatening to burst at any moment.
The muscles in his stomach tensed up as he shot his load directly into your keen throat. Despite not being able to see, Renji could tell you were swallowing every drop of warm cum he had to offer. It came in spurts and his legs twitched when you let his cock fall from your lips with a pop.
"You taste amazing..." You admitted and Renji felt the mattress dip and then suddenly your lips crashed into his. He could taste himself on your lips and when your tongue forced its way into his mouth the taste was even more prominent. Your two tongues mingled together like they were always meant to be. Pulling away with a squelch, Renji almost whined for more contact. His cock now lay semi limp but he longed for more.
"You were such a good boy, I'll take the blindfold off but...I'm not finished with you yet." You said and when a single index finger pulled his headband down off his eyes the light from the moon almost blinded him. The moon in the sky seemed to taunt him with its brightness but when he focused on you his gaze softened. Your lips were still plump from sucking his dick and a small drop of cum hung off your chin lip like a souvenir.
"Ready for round two?" You asked and Renji's cock seemed to have ears of its own because it twitched in response to your words almost immediately.
"Fuck yes..." Renji muttered and a cruel but inviting smile appeared on your face. Renji could tell, you were enjoying this just as much as he was and he was so grateful.
Manga panels spreads that live rent-free in my mind, Bleach edition: Renji releases his full bankai for the first time (from chapter 564 "Red Bristled Kings").