I don't own Bleach, I wish I did, I'm sad I don't.
This is more smut. I've made Urahara into a prostitute because I feel like he's neglected on this site.
Warning though, Kurosakicest and armpit fetish because I'm a kinky fucker.
My social awkward is telling me to just start the story.

Urahara Shoten, in the months after the winter war, had been running low on money. Hospitality had always been offered to shinigami staying in the human world, but for free, and as Urahara's friends were to be respected, that certainly wasn't subject to change.
So, ever the hypersexual that Urahara was, he decided to sell his body. It really was the best solution. Conveniently, he turned out to be pretty popular, because after all, what would a shinigami do with their thousands of years?

Ichigo approaches the shop with regret, sure he'd never come back, but here he is. There was no going back, though. Ichigo was comfortable with how much he enjoyed sleeping with Kisuke. The only problem was who he pictured. Tall, experienced, able-bodied, just like Kisuke, it was his father.
So naturally, purchasing sex only to imagine his father was something that Ichigo had a bit of trouble with. After all, he had conidered telling his dad about his "little crush" hoping it would go away after that. The only problem is that his father was just extremely hot.
Ichigo steels himself and opens the door to the shop. He steps in and soon Kisuke walks into the room.
"Oh, hello Ichigo. What kind of candy would you like~?" The storeowner asks jovially.
"You need a better way to ask that question. How about 'Candy or Sex?' And I'll be having sex today," Ichigo responds.
"Well, that's good news." Ichigo blushes hard at the voice, recognizing its deep, cool tone.
Steps echo in Ichigo's head as his heart beats faster and faster. Isshin walks in, and stood right in front of Ichigo. He wears an undershirt and jeans, showing off his bulging muscles.
"I- um- was-" Ichigo stammers.
"Don't lie to me. Do you think I can't tell how you think of me, Ichigo? You may recall how hard of a time you have controlling your reiatsu. You don't think I can feel your lust for me?" Isshin explains.
"Dad..."
Isshin grabs his son's head and crashes their lips together, forcing his tongue inside. He kisses his son sloppily, feeling his body temperature rise at the flavor of his mouth.
"I really have wanted this as well, you know."
Ichigo blushes.
"Well! Now that we all are on the same page, shall we get started?" Kisuke asks excitedly.
Isshin smiles. "Sure we can." He takes off his undershirt in a swift motion, revealing his toned physique. His giant, slightly hairy pecs shine with sweat, his godlike arms folded between them and his solid abs. He spreads out his arms, leaving his chest exposed like a canvas.
Ichigo licks his lips, and moves in to taste his father. He starts with his pecs, slowly licking from the nipples to the chin, causing Isshin to tilt his head back and give a slight moan. Kisuke kneels down and begins leaving kisses on Isshin's lower abs.
Ichigo lifts Isshin's arm gently and blushes. He stares at his father's hairy pit for a second before licking it, savoring the salty, masculine flavor. He begins to lick more hungrily as Isshin reaches down and pinched Ichigo's nipples softly.
Isshin finds himslef unzipped by Kisuke, his underwear pulled down to reveal his cock. As Ichigo separates from his father's underarm, he gazes at his dick with appetite. Kisuke backs up to reveal a thick organ, crowned by short hair reaching up to his abs. Ichigo licks his way down Isshin's torso, finally reaching the member. He and Urahara immediately begin to lick at it.
Ichigo moves on to lick at the balls, giving long, wet licks while Kisuke takes it in his mouth and begins to suck slowly. He bobs his head with hunger and lust.
"Ooohhh..." Is all Isshin can muster. He sits down on the ground with his legs spread, and his lovers' heads follow. Kisuke begins to bob faster, causing more energetic moans from Isshin.
Ichigo moves down and licks the sensitive are between Isshin's balls and ass, sending a jolt of pleasure. Ichigo grabs Isshin and lifts him, immediately plunging his tongue into Isshin's entrance.
"Fuck, I'm getting... Close..." Isshin begins to thrust his hips into Kisuke's face, the storeowner nearly choking. Kisuke, amazingly, continues to suck, siwrling his tongue. As Ichigo hits his sweet spot with his tongue, Isshin finally gives a small shout as his seed streams into Urahara's mouth. Kisuke crawls on top of Isshin, dipping his head down for a kiss. He forces his tongue into Isshin's warm mouth, allowing him to taste himself.
Kisuke and Ichigo each stand up, leaving Isshin panting and sweating on the floor. Ichigo lifts his shirt over his head, revealing his own chiseled torso. His pectorals bulge, his abdominals glisten. He then removes his belt and pulls his pants down, revealing no underwear and a long, lean, uncut cock. He watches as Isshin licks his lips.
Kisuke slips his clothes off, showcasing his toned chest and his defined abs. His dick throbs with neglect, cut, thick, and longer than Ichigo's. From his discarded clothes, he retrieves a bottle of lube. He kneels down and coats Isshin's member in it liberally.
"Your son here is very tight, so you'll need it."
Ichigo, upon noticing that he'll be riding Isshin, immediately squats down over the old captain, positioning his hole over the bulbous head. He bites his lip a little as he lowers himself onto the cock, but soon relaxes and takes it all the way. He begins to shift his hips up and down, taking it as deep as possible each time.
Isshin begins to grunt again, but is soon silenced by Kisuke's cock in his mouth. He earnesly begins to bob his head, deepthroating Kisuke. The storeowner crouches down over Isshin's mouth, angling his dock down and turning to face Ichigo. Isshin breathes in the scent of Kisuke's balls as he takes the man above him deeper into his throat.
Ichigo grabs Kisuke's head, and pulls him into a kiss. He thoroughly explores the warm cavity, mingling saliva. His cock begins to drip with precum, and he grabs it, beginning to stroke quickly. He is stopped, however, by his blonde slut, who lowers his head, kneels and straddles Isshin's head, places his head on Isshin's hips, and lowers his head over Ichigo's long, muscular cock.
Ichigo gasps in pleasure. He feels Kisuke begin to swirl his tongue gently around the head, licking inside his foreskin, flicking the slit at the end. He can't take the anticipation and grabs for blond hair, slamming Kisuke's head down over him. He begins to fuck the storeowner's mouth without mercy.
Isshin begins to move his hips furiously in rhythm with Ichigo's thrusts into Kisuke's mouth. He takes Kisuke impossibly far down his throat, swallowing around it to hear Kisuke's moan, almost a roar, around his son. He grabs Kisuke's ass, gratuitously shoving his top's dick down into his hungry mouth.
Kisuke moans as he feels Isshin slide two fingers into him. He bobs his head over Ichigo to keep hmself from screaming in pain and pleasure as Isshin inserts four fingers, expertly targeting his sweet spot.
As the trio picks up speed, they become louder, until Ichigo forces Kisuke's head down over his cock and shoots his white liquid into his mouth. Some of it spills out, and Kisuke sits up, tossing his head back as he and Isshin climax at the same time, Isshin frantically thrusting into Ichigo before slowing down as his mouth is assaulted by the salty-sweet flavor Kisuke sends through his moist cavern.
Kisuke sits back and breathes heavily, drawing himself from his bearded client's mouth. "That was just... amazing." He says, regaining his breath. Ichigo does the same, sliding off of Isshin's thick member and sitting down with his hands to support himself.
"I don't think we're done," Isshin states matter-of-factly.
"Oh, so then you'll be paying extra?" comes the eager voice of Kisuke.
Isshin grits his teeth. "Fine. I'm not done with you or Ichigo yet, though." Isshin, without warning, gets up and lifts Kisuke by the back of the neck, slamming him into a merchandise rack. He bends over and whispers into Kisuke's ear, "Remember when we were captains? I know you like it rough." He rises to a shout. "Ichigo!"
"What?" Ichigo asks, in awe of his father going so commando.
"Come and fuck me. Your cum should be fine for lube."
Ichigo blushes, but obeys. He walks over and positions himself at his father's entrance, and pushes all the way in. Isshin violently slams into Kisuke at once, moving his body drastically. Ichigo begins to copy rhythm, watching as Isshin tosses his head back at the mixed pleasure.
Tears form in Kisuke's eyes as he screams from the intoxication of Isshin's violent thrusts. He flips his body over, twisting his hole around Isshin's dick, causing more pleasure for him. He sits up, grabbing onto Isshin's shoulders. He is shoved back down and accompanied by Isshin's mouth, biting at Kisuke's nipples and licking his neck and pectorals.
Ichigo bends over his father, licking the back of his neck. He grabs onto his head, pulling Isshin's body onto himself, allowing himself to be entirely engilfed by the warm hole in front of him. He grits his teeth and moans louder and louder, close enough to Ishhin to feel every movement he makes into Kisuke.
Isshin's head moves eratically, biting Kisuke's shoulders, his nipples, licking Kisuke's pectorals and violently kissing him. He slips his tongue into the storeowner's mouth, winning dominance immediately. He roars at the taste of Kisuke's mouth, the tightness of his ass, and Ichigo's trusts into him. He breaks away from Kisuke, licking under his arm, taking in the masculine, sweaty flavor. He licks repeatedly, savoring the saltiness of Kisuke's sweat.
Before long Kisuke takes his dick in his hand and pumps violently, screaming in pleasure as his anus tears just a tiny bit. He pimpe more and more furiously, until he shoots his hot cream all over Isshin's chest and neck. He cranes his head to lick it up, having difficuly as Ichigo shoves Isshin's body onto him. He cleans Isshin's beard, neck, and finally gives slow licks to his pecs as Isshin forces himself up to give Kisuke room.
At the last lick, Isshin shouts Ichigo's name and gives two more violent thrusts, filling Kisuke with warm fluid. He then pulls out and turns his head around to kiss Ichigo, lying on top of a panting prostitute storeowner as he slips his tongue passionately into his son's mouth. He feels Ichigo's moan in his mouth as seed from Ichigo's monster cock spills out of him.
They all lie panting, Ichigo still inside his father, as Isshin pulls a small stack of bills from his discarded clothes and leaves it on Kisuke's chest.

So there's the first installment of that. I don't know when I'll make the next one, as I've got another fic in progress.
I also need to know who I should put in the next one, so I'm open to suggestions. Just know they'll be with Kisuke. I would like to wait on another 3-way.