I did my best and hope you enjoy it as I didn't copy any smut and wrote this crap with my imagination. Note this is hard to write with one hand and fapping noise in the background.
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Taking the lead, Tobera closely watched how Yuuki took Yachiho and was confused at the whole situation yet her body craved every moment of it. She tries to think rationally but unfortunately, her body was burning and heating up where he twirling his tongue and sucking her face caused her to feel even more aroused. The pleasure of his tongue showcases a level of expertise increasing her carnal desire to give herself to him.
Yuuki developed another breakthrough in his ability that had manifested in his desire to have a woman where the more he had, the better his chance of getting new ones while also accelerating the bond between all of them.
Yachiho felt her heart race when he suddenly rubbed his hands on her cheek seemingly comforting her, easing her anxiety and doubt about the events that she found herself in. Yuuki filled her heart with warmth mixed with arousal, gaining a burning desire in her chest to keep on going.
The two slobbered in saliva before pulling back, allowing Yachiho to see his sharp gaze eyeing every single part of her face, then shudder when he went into her neck marking it.
Yachiho both quivers each time he sucks them placing a hickey that made Himari who was watching jealous then quickly went to his back and began nibbling his earlobe while caressing his back.
He pulled back and turned to his side looking at Maia who was getting horny from the size and the pheromone that his body now released seeping into their mind where they only thought to have an amazing night with Yuuki without any shame.
His eyes glowed in a feral manner having awakened to a lust craze where he pulled Yachiho and Maia to his side proceeding to slither his hand to their breast then squeeze and fondle them resulting in both gasps. Fubuki recovered and went in between her daughter wrapping her hand around his shoulder before pushing her lips into his coiling her tongue, and coating it with his saliva.
Tobera was smirking seeing them and decided to move behind him beside Himari pushing her to the side and taking the right before licking and biting his shoulder. Their nether regions were already dripping wet from all the action happening.
"Mhmh how about we continue this on the bed~?"
His tone sent shivers down their spine as they found themselves within the grasp of a wide beast ready to ravage their body. None refused and everyone headed to the nearest bedroom that had a large bed enough for all of them Yuuki moved to the bed while voraciously making out with Maia and Yachiho who he stripped naked unlocking their bra and sliding his fingers between her undergarment and pulling them up to reveal their pink hardened nipple in which he took without hesitation kissing Maia chest putting her in edge slowly building up her arousal that intensifies the pleasure.
"Mhmh~❤️ Ahnnnn...Mhmmm…haaa….!❤️"
Rubbing his thumb on her nipples while kneading them as he pulled Yachiho for another kiss while he unhook her bra letting it fall onto the ground where Yuuki pulled back to see her flustered and panting heavily with the sight of her naked body rose his desire to take her.
Fubuki got in the middle slithering her hand underneath his share letting the Milf feel his hard body slowly lifting it and let everyone who hasn't seen his naked body a memory to remember forever.
When she was finished breath into his ear licking it while rubbing her soft and smooth hands on his chest then slowly slid into his short massage his tent biting her lips then pulled Yuuki surprising everyone with her action as she pushed Yuuki immediately straddled on top of him and hump her soaking cunt.
Tobera laughed at the eagerness of her daughter and moved her way to the bed followed by the others as Maia took his left arm, lifting it into her mouth and licking them. He could feel her wet tongue wrapping around his fingers sucking them hard. Himari and Yachiho were legs as their mother instructed the two to pull his shorts and reveal his meat stick.
Fubuki shivered, feeling his massive cock rest against her entrance ready to impale her inside as she started to ovulate from its presence. She looks down at Yuuki who ogles at her massive tits and perfectly shaped body as he ran his hands on her elastic thighs that he gripped, causing her to bite her lips that had strands of hair as she enjoyed how he was showing great interest in him. Yuuki's cock twitches from the erotic sight of her vulnerable and lustful gaze.
She gave an enticing smile delighted that he was rearing to impale her body, noticing the length bigger than the man who gave her daughters as her heart stirred at the thought of getting knocked up by him.
Meanwhile, Tobera was at his right side and began licking his chest, drowning his nipple with her wet slippery tongue where he grunted at her attack. Maia slither beside him, laying on his chest and letting his hand go underneath to wrap around her waist as Yuuki reaches out to grab her ass squeezing it resulting in her to quivers and moaning staring into his eyes as if asking for more which he happily obliged taking her lips wrestling their tongue with another.
Yachiho felt her chest tighten, experiencing an insatiable hunger to devour his throbbing cock, and felt her mind going numb from the strong aroma of his spunk that bickered for her to submit to her carnal desire to copulate with him. It made her go crazy and the same thing was Himari who already did it numerous times and couldn't control herself, surprising her older sister by sticking out her tongue and starting to lick his shaft.
Yuuki growled at the slobbering sound of Himari's tongue stroking it upward to the tip that was oozing with pre-cum. She lavishly coats the entire length, slobbering it in saliva that starts to glisten and smoother using her delicate hand to play with the tip. Himari had grown to experience each night they spent having done her research to satisfy him despite it being impossible with his endless stamina and sexual libido.
Yachiho dumbstruck witnessed her sister expertly stroke her tongue along his shaft and jerked him off where her hands were simply gilded due to the smoothness of her hand and the lubricant from her saliva. She slides her fingers between her loins rubbing them experiencing an itch where it was dripping wet by simply watching them.
"Yachiho, don't simply watch and help your sister lubricate it."(Fubuki)
Her traces-like state reawakens from the voice of her Mother ordering her and having the carnal desire consume her mind where all rationality slowly fades away moving her sister aside who took the other side of his shaft as the two assaulted Yuuki with their tongues causing him to let out a groan and his body spasm putting him the edge. Yachiho picks up even more of his intoxicating fragrance that clouds her mind, pulling the Time Stop user to fall deeper into lust.
Yuuki was panting from all the sexual tension where he went back and forth from Maia, Fubuki, and Tobera from sharing a kiss with a burning passion. Fubuki couldn't control herself when it was the first time in many years since she felt drawn to a man smothering him with her lips and tongue while her hands rubbed against his shoulder pressing her breast and letting him feel her excited nipple as he returned the favor feverishly.
Maia jolted the moment his finger slither to her lower lips where he rubbed the fold and spread it before thrusting his fingers into her letting a howling moan holding her forearm with each movement shot an electrifying pleasure coursing through her spine as she stick out her tongue panting heavily as her chest heaving continuously.
Tobera on the other hand held his hand on her small petite breast cupping it before squeezing them and making her tremble in excitement even the man she forced herself into never made her feel this heart-pounding excitement. She gave herself to Yuuki and won't even think of finding another man now fixated on making an even stronger Azuma with him.
Back below, Himari took the initiative and inserted the head of his girthy baby-making into her mouth while swirling her tongue at the sensitive tip tasting the pre-cum. Yachiho huffed at the ever-increasing intense heat steaming from her body as they all began to accumulate sweat from sexual tension. She watches in awe at the scene of her little sister zealously slurping his manhood that was full of virility.
Fubuki pulled back to see his face heat up, letting a small groan as he tried to hold himself from releasing. He can go for many rounds doesn't mean he can hold himself from bustling when there are 5 beautiful and delectable women. Yachiho bit her lips amazed that Himari pushed the massive cock down her throat causing Yuuki to tense up from the tightness of her mouth.
She has gotten exceedingly deep that her nose touches the base gagging from the lack of air resulting in her throat clamped. Himari held it for a few seconds before she pulled back, shrouding the enormous length with drool, and resumed licking the shaft. Yachiho instinctively joined in and then tried what her sister did, taking the entire head into her mouth and tasting the oozing pre-cum while Himari helped by massaging his family jewels.
She whined in pain when trying to take his entire dick into her mouth but didn't back down as it tore her throat reshaping it to fit the massive thing. Yuuki recoils back, losing his mind at the instant tightness of Yachiho's throat squeezing his dick.
She couldn't take it all the way and pulled back coughing and Himari didn't waste time and immediately started licking him again. Yachiho took a few seconds to recover and realize what she had done, causing her to blush didn't expect to act that indecently. Fubuki decided it was time and leaned closer to Yuuki's ear nibbling them then whispered in an alluring way that shot his arousal to the roof.
"Yuuki-kun…can you give a healthy baby boy~❤️?"
His eyes widened then felt her lips clashing against his and wrestling for dominance. Fubuki pulled back staring at Yuuki to show an even more predatorial and beastly gaze where her body craves to be mated and fertilized by him, thinking the dripping wetness between her legs would soak his lower abdomen.
She stopped Himari and Yachiho from continuing with the two sitting up and looking at their mother who leaned back her breast hanging down giving Yuuki a full view of her gorgeous body that didn't lose its charm. Fubuki squirmed, feeling his massive dick rubbing against her entrance where she started by humping him a bit trying to put him on edge despite her body begging to get penetrated by his hard throbbing virile cock.
"Maia-chan why don't you take his face while you two play with his chest?"(Tobera)
The two blushed while Maia didn't want the opportunity to place her dripping cunt into Yuuki where her back faced Fubuki and looked down at him causing her lips to quiver and gasp from his tongue stroking her lower lips moving them before slithering his tongue into her tempted to turn his tongue into a snake but decided to do it later.
Himari and Yachiho took opposing sides running their soft and delicate fingertips as they nibbled his nipples. Tobera didn't join in simply instructing them considering she already had her fill rubbing her abdomen stealing a bit of Yuuki's life force to accelerate the growth and by the rate would give birth around a month or two if Yuuki isn't around often.
Yuuki felt Fubuki's incredibly soft hands positioning his hard-as-steel cock into her cunt and spreading it to take the entire length.
"Hyaanhgnnnag~~~~❤️❤️Mhmhm~❤️ Ahhhnnn~~❤️"
Fubuki wailed the moment she pushed it all the way, caught by surprise at how much it would fill her inside that the tip was kissing her cervix, and the inner folds tightened. Yuuki gasped, taken aback by the warmth inside of Fubuki who began to ovulate even further that she was dangerously fertile and the aphrodisiac phenomenon of the air didn't help to amplify her desire for a child.