When Slaanesh/Dany saw that trio she immediately knew what to do with them. She was in dire need of new servants, especially maids. It didn`t matter to her that that trio was composed of three violent males that could crush skulls with their bare hands and were as delicate as wild boars. She only sent a mental message to Roberta -"I want this trio, you may kill the rest."

Roberta was startled for a moment but before she proceeded with the whole kill them all she decided to confirm her orders.-"Now My Lady?"

-"Not now, I will manipulate these shitheads to follow me into the warp. When I will adjust them to my liking we will call for Franz and you will start your killing spree."- Slaanesh looked at them like a hungry beast would look at its prey. She was craving for sausage.

-"As you wish, but My Lady, please compose yourself, you are losing control and you start to look like a madman"-Roberta tried to remind her mistress. Somehow it worked but not as good as she wanted. Slaanesh now looked more like an excited young girl. -" It seems like I will need to teach you how a proper princess should behave"

-"Did you said something?"- Slaanesh looked at Roberta but she avoided her gaze.

This whole mental exchange lasted no more than a second. So brothers trio did not spot anything weird with their new captives. Everything was normal except their skyrocketing libido. They quickly took Slaanesh and Roberta to their hut. They shut the door tight and looked at their new toys. Or at least that's what they thought.

The moment the doors closed they were transported into the warp. They looked around in surprise.

-"Wut is that flowing thingy?"- Said blond-haired brother.

-"Hell I know, must be some magical-thingy that zogged us out."- Said the black-haired brother.

-"Shut up ya gitz, we be somwhere not in da world. Betta those gurls did that."-Said brown-haired one.-"Bu do no worry, if we take more than 1 minute to play with them, gitz should thing that something gunn bad."

Soon rift appeared near them, they looked at it and saw Slaanesh and Roberta strolling out of it.

-"Ya bitches what has you done to u...."- Blond-haired probably because of being the youngest had the shortest temper, he couldn`t finish his sentence because he was slapped by something that looked like a tentacle made out of the mist.

-"Such foul language, I can not accept you as my maid when you are using such words."- Slaanesh perfectly played an overconfident young lady.

-"You clumping gurl, I will split you legs like a cake. You..."- In the black-haired brother mouth appeared a gag, his eyes almost popped out when he realized what happened to him.

-"Actually I am done talking with you, time for your training. I will be shaping your bodies while Roberta will teach you how to behave like proper girls and maids that will be serving me."- Trio tried to protest but with the flick of her fingers, their mouths were gagged. Slaneesh materialized her pillow throne. She sat in it comfortably in a lady like a manner. Her dress changed to the purple one that showed her long white legs.-"Now, lets the fun begin"

The trio was stripped out of their clothes, as Slaanesh looked at them with criticism in her eyes she was thinking aloud.-"No, no no, they look nothing like maids. Especially those things are unnecessary." - She reached her delicate hand and made a gesture as she was grabbing something in the air. They felt like something grabbed them by balls and put them in a vice, then they saw that their sausages started to shrink and retract inside their bodies. She was working on them without anesthesia so they could enjoy the pleasure. Soon there were 3 additional holes in the warp.-"Nice, but I will sculpt you pussies completely later on, now with your looks." - She smiled and looked at the brown-haired brother.-"You are first. From now on you will be called Airi, blond will be Mari and black will be Chika."- Brown-haired made a weird noise while gagged.-"I can not understand you so shut up."- Their bodies started to shrink and lose body hair. Soon they looked like slim boys at the age of 15 or 16.-"Now as we got rid of these ugly bodies of yours it is time to change you completely"- The trio wriggled in pain as their bones started to change to give them more girly like looks, their muscles deflated, and their chests inflated. Each one had a beautiful pair of boobs. Their ass became round and legs were smooth. They looked in horror as they were seeing and feeling what was happening to them. Then finally come time for their faces. Slaanesh summoned them and they flew towards her. She grabbed them by feces and started to model them. Their skulls were crushed and reshaped.-"Now you look like girls that are fit to serve me. Look at your self, you are such cuties, I would devour you all by myself."-Slaanesh showed them a mirror. 

A case of literary theft: this tale is not rightfully on Amazon; if you see it, report the violation.

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 When the trio saw their reflections they started to cry. 

-"Do not cry there are still a few more things to do. For example your voices. You still sound like barbarians." -She grabbed them by their necks one at the time and squeezed them.-"Fell the pleasure." - When she finished d their voices became cute too.  She removed their gags. The trio did not have the power to even move one finger.-"Do not worry my little girls, there is still one more thing to do." - Slaanesh dress disappeared showing of her mace. She massaged the tip until precum appeared, she gathered it on her finger and licked it like it was some sort of delicacy.-" Your pussies are still just empty tubes in your bodies while we want them to be fully functional." - Her smile was beautiful end terrifying at the same time. The trio started to float around her in circles with their legs spread wide open, right at the height of her dick.-"One, two, buckle my shoe. Three, four, open the door. Five, six, pick up dick.  Seven, eight, lay them straight."- Slaanesh grew two more dicks, put the trio at the top of each other like a sandwich blond on top, black in the middle brown at the bottom, and pushed her 3 dicks into their pussies."- Pussies started to take shape with the first thrust, with the third they were fully functional, with fourth they created hymen which was immediately torn to shreds with the fifth thrust. Their skin started to change too, they were turning into a daemonettes. Soon their screams and cries of pain change into wails of pleasure. When she finished with hem she sat on her pillow throne again. She looked satisfied with her new servants.-" Now please introduce yourself."

The trio rose from the ground with wide grins, they could feel the power flowing thru their veins and an incredible lust for more. They had purple light in the eyes. Slowly they turned back to their human form and kneeled befor their new mistress, they were completely naked, cum was still flowing out from them.

-" Airi, at yo service"

-"Mari, redy to go"

-"Chika, lock and loaded."

-"Good, very good, your bodies and mindset are perfect." - Slaanesh with a hand summoned her newly appointed head maid.-" Roberta, ekhem. Listen, their looks are fine, but they need training because they still do not behave like proper ladies. -" She looked at her new toys as they were looking at each other pussies and were arguing which one was better.-"You can do anything you want as long as they survive."

-"As you wish My Lady"- Roberta marched forward and clapped her hand.-" Girl please listen to me"-They looked at her with mocking expression and politely told to fuck off. They were so confident in the new powers that they transformed into their daemonette forms and started to threten Roberta. She stood there motionless until she snapped. She transformed into her purple form too. Her power instantly skyrocketed, not only that it was even evident in her looks. She was bigger than them, her boobs were bigger, her skin more glossy and silky in touch and more importantly, she had a dick, a big one at that. The trio instantly lost their fervor and became small little, flat chested daemonettes. Their lecture began, they sometimes made a break to pleasure themselves. It consisted of Roberta fucking them in turn and them giving her blow job. It took them an unknown amount of time to master all girly things that Roberta taught them. When they finished they started to look for Slaanesh who went missing during their lessons. 

Girls found her sitting on her pillow throne playing with little loli. She was sucking Slaanesh breast with her little bottom was massaged by her mom's hand. Little loli looked at them for a second and quickly turned towards her mom and hugged her bosom. She was very shy. 

-"Do not worry little one, they won't hurt you. Have you finnished?"

-"Girls, introduce yourself."-Roberta ordered her underlings.

-" Airi, at your service Madame"

-"Mari, at your service Madame"

-"Chika, at your service Madame"

-"Perfect."- Slaanesh started to laugh.-"Now we will return to your old hut we will wait for our rescue."- Rift swallowed them all. They appeared in the middle of the hut.- "Only ten second passed here, and do not worry your soon to be dead subordinated won't think about you until they die." 

The trio did not care about that, as all they could think about was how to pleasure they Goddess.