"Uuunngh—please be gentle…" she moaned and began grinding her ass against the large bulge in his pants—until Kenshin pulled away.
At that moment the door opened; Aya entered and gasped loudly. Kenshin had telepathically told her minutes ago to bring lube to his workshop. The young beauty was delighted and rushed expecting to fool around with Kenshin alone.
"Natsumi—what does this mean?! We agreed to always do it together!" she declared—upset by her friend's cunning.
"Ah—sorry Aya—I couldn't control myself—you know how it is…" Natsumi moaned—arousing even more under her best friend's gaze.
"Aya—give the lube and stand beside her," Kenshin commanded—casting an appraising glance at the fragile girl.
Under his gaze Aya trembled and got a bit wet. She wore a pink t-shirt and tight blue jeans. Kenshin loved everything tight—so his women tried wearing only such clothes—especially Hitomi. Other wives were insanely jealous of the big-breasted voluptuous-hipped owner who could easily distract Kenshin from work—which Hitomi used to get affection.
Aya knew perfectly how to arouse Kenshin—so elegantly approached the table, bent over, and stuck out her neat toned ass—smiling victoriously when Kenshin couldn't resist and grabbed her cheeks with both hands—forcing the young beauty to moan tenderly.
"Aya doesn't know yet—tell her," Kenshin ordered dominantly—returning to Natsumi and properly slapping her firm ass.
"Ah! Kenshin is going to fuck us in the ass—friend. Your deepest desire will finally come true," Natsumi said and giggled.
"You! Why do you always tell my secrets?! Kenshin darling—don't listen—she's lying!" Aya whimpered and tried rising—but was stopped by Kenshin's right hand pressing her to the table and properly slapping her firm ass.
"Both quiet. Choose whose ass to try first?" he said smiling—stroking Natsumi's ass with his left hand and Aya's with his right. Both girls moaned quietly and declared synchronously:
"Mine!"
"Aya girl—sit and watch. You're next. No touching yourself—understood?" Kenshin ordered dominantly—deciding Natsumi was aroused enough for anal.
Aya quietly whispered "yes," pulled down her pants with panties, and sat in the armchair—throwing her legs over armrests and staring at Kenshin unblinkingly while biting her lip. In half a year living with Kenshin she had perfectly learned seductive behavior—leaving his self-control no chance.
Suddenly Natsumi let out a guttural moan as Kenshin's two fingers entered her ass again—pouring oily lube. He flooded her entire ass—not worrying excess lube flowed down her tender legs to the floor.
Kenshin instantly pulled down his pants and boxers; his incredibly aroused cock sprang free and hit Natsumi's ass—forcing her to whimper with arousal. He immediately positioned his cock at her narrowest untouched hole—the girl moaned even louder.
Meanwhile Aya stretched her neck trying to see the moment such a big cock entered her best friend's small anal hole. She knew her ass was next and wanted to prepare properly.
When Natsumi felt the cock head at her back hole she immediately opened her eyes wide and took a deep breath. The feeling was completely unfamiliar and scared the young girl.
"Shh—endure it darling…" Kenshin whispered and—leaning in—began kissing her sweet neck, calming the young beauty until she relaxed and purred with pleasure.
He carefully inserted the head into her tight hole and heard Natsumi moan. She bucked and tried rising.
"Ouch—god—it hurts!" she whimpered but Kenshin calmed her again and waited for relaxation.
This continued several more times. Each time Kenshin's cock advanced a few more centimeters Natsumi instinctively tried rising—growing more accustomed to the unpleasant sensations each time. When his cock was about halfway in her tight ass Natsumi completely relaxed and stopped feeling pain from smooth advancement. It was still slightly uncomfortable—but deep in her hole an absolutely unknown pleasant feeling arose—different from usual vaginal sex sensation.
Suddenly for Natsumi Kenshin drove his cock balls-deep into her incredibly tight ass—forcing her to scream.
"Aaaaah! God—it hurts—hurts!" she squealed and—to her own surprise—felt unusual pleasure. Her pussy got even wetter; her body flushed with heat.
"Shh—the worst is over. Now your ass is finally mine. You're simply incredible girl. Your whole body is a true treasure…" he whispered—hugging her, placing both hands on her small breasts, and kissing her neck.
"Can't believe my ass fit your entire cock!" Natsumi declared with arousal.
Kenshin barely restrained himself from grabbing her narrow waist and starting to hard-impale her miniature body on his big cock. Her sweet words aroused even more; growling gutturally he began moving slowly.
"Ah—god!" Natsumi cried feeling the huge cock ruling in her tight small ass.
He barely controlled movements—on crumbs of remaining will carefully impaling the fragile body on his cock, enjoying her ass's tightness. She constantly moaned from a mix of pain and pleasure—but gradually began breathing heavily and whimpering. Pain almost completely passed—giving way to pleasure increased dozens of times.
"Uuuunngh—god—don't hold back—please fuck me!" Natsumi screamed feeling an unusually strong orgasm approaching.
Hearing his best friend's words Aya took a deep breath and barely restrained from touching her aching-with-lust pussy. She never imagined anal sex could do this to a girl.
Kenshin in turn grabbed Natsumi by both arms and began impaling her on his cock even harder—never stopping fast hip movements, penetrating balls-deep into her tight hole—eliciting sparks in her eyes with each thrust.
"UUUUUUUNNNNGH!" Natsumi screamed and trembled all over. Her eyes rolled back, tongue lolled out, and a fountain of juices gushed from her pussy. She experienced one of life's strongest orgasms—completely lost in pleasure.
For Kenshin this was the last straw. Her ass clenched so hard it literally forced his cock to release all reserves; he began cumming—flooding her anal hole with huge amounts of semen.
"Aaaah!" he moaned from unprecedented pleasure. His long desire was fulfilled; he barely stood from the overwhelming orgasm.
His cock kept shooting semen into her narrow ass until there was so much it began gushing out. Natsumi constantly whimpered and trembled at that moment. Each cum spurt caused new waves of unending orgasm—giving the beautiful girl even more pleasure.