#hyperfutanari

"HA! thats something I do daily, I must remind my shrimp-dick sister how much more superior I am~! And to do so today, I bought this new industrial cock milker! aren´t you exited sis~?" Junko hugs her plain chest sister Mukuro from behind making her disappear between her macro sized breast

Dramatically Junko move out the way, pushing mukuro against the ground and stepping on her back while pointing at a huge breeding mount, the hole to introduce the cock was so massive that you could put a mountain inside and still won´t fill the whole machine. It was connected to several hoses that goes underground, into previously prepared storage tanks and the whole machine was coated in gold and gems

"T-thats for sure something only you could buy and use sis~nghhh!!~" Mukuro mumble while drooling looking at Junko´s cock grow harder above her when she stomped her feet on mukuro´s ass

"Shut up! I´m the one talking now!" Junko continue pressing her legs against Mukuro´s rear while speaking "The newest Technology made by that cum-for-brains inventor Miu! She refused to tell me how the storage work or how much it holds but was pretty confident telling me to cum as much as I want. HA! can´t wait to break it~~" Junko walked off Mukuro´s back who just sit there in silence watching her sister use an elevator to reach the highest point of the breeding mount, where Junko place her cock on the massive hole before groping her own boobs, playing with her nipples to make her cock grow even more until not only filling the hole but forcing it to expand twice bigger while her balls reach the ground where they were talking before and gurgle making even more cum

"Not bad~ If I go further it could break but its too soon~ Time to test it´s endurance~ Sis, do something useful and worship me~!!" Screamed the fashionista making sure her sister heard her down there

"Y-Yes sis!" Mukuro pressed her body against the warm testicles several times bigger than her, maybe even bigger than Hope´s Peak at this point, and grope as hard as she could licking the surface while getting hard "Y-Your body always feel so good~~"

"Do your worst to not fall!!" Junko hold the handlers while moving her hips, going in and out of the elastic machine making it squeak while her balls fly high in the air before being slammed againt the object, Mukuro, thanks to being so strong managed to keep herself groping her sister´s ball while feeling how it grows even more and gets warmer

Wanting more, Junko pressed several buttons on the machine, activating a suction function at same time than a vibration and a heating one

"This thing is actually making me feel good~" Soon, she began to leak, massive amounts of white pre, enough to fill dozens of lakes and thiccer than any normal cum. All being sucked by the hoses and saved on the storages

"Fells good but keeping myself this small is getting boring really quick, time to get a bit serious~" Junko twiced her speed, smashing the machine with her oversized cock

Mukuro felt the rumble on the hyper balls of her sister and began to climb on them until reaching Junko before it was too late, she knew perfectly how her sister orgasms worked and even more when holding back like this

SPLOGHSHHHSHSHHSHSHSHSHSHSH

as if it were a tidal wave, and with her balls growing ten times bigger, Junko shot her load that was tried to be sucked by the hoses, it only took 2 seconds for an alarm to start ringing, Junko had exceeded 250% of the capacity and soon the ground cracked with powerful geysers of sperm flooding everything around them "Not even five seconds!? this invention is bullshit!" Junko got mad and her cock grew even more, destroying the breeding mount and not holding back anymore, in less than a second Junko´s cock grew past the atmosphere, masturbating furiously while her thicc cum flood any other planet on sight

Junko finished her first load after 20 minutes, the whole Galaxy was painted white and Junko was just starting "Who am I trying to fool? There will never be a toy to handle my cock! you saw this Sis? I turned that Billion dollars worth breeding mount into rubbish without even trying, I bet your micro penis couldn´t even grow enough to at least fit~" Mukuro´s cock was actually Kilometers long at this point and cumming due seeing her sexy sister flood the space like nothing, but compared to Junko she was indeed micro sized

"Y-Yes Junko~ Y-Your cock is really far superior~" Junko kicked her sister and made her fall, sitting on her covering her entire body with her huge buttocks and making sure her pussy is right on her sister´s mouth "I´m not moving until I´m dry, and you will be down there giving me more pleasure all the time~"