Had to censor the neonatal-liquid-nutrient-dispensers on the midwife gynoid due to the deviantart policies, sorry 
Uncensored version:
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Part Three:
Part Four:
In the newly renamed Emperor Palpatine Surgical Reconstruction Center on Coruscant, Ubrikkian DD-13 surgical droids gathered around their screaming, groaning patient, the living remains of Anakin Skywalker, charred beyond all recognition on the volcanic slopes of Mustafar. Forceps gripped and teased apart the subject carefully, separating the melted, fused skin and clothing, while curettes scraped away only the worst of the necrotic flesh.
Every slightest scrap of their patient represented his living link to the Force, and thus invaluable to their Imperial master. Each part removed diminished him and, even in the midst of his undrugged agony, Anakin felt his connection to the Force grow incrementally weaker with every piece cut away. The duel against Obi Wan had cost him dearly already, his legs and remaining arm, such that now he squirmed, limbless and helpless, beneath the droid’s tools.
The dark-robed figure of Emperor Palpatine observed from beyond the pool of light illuminating the table. Beside him, the gleaming obsidian life-support armor awaited in pieces, soon to contain and christened the new Dark Lord of the Sith, Vader, and display him as a profane weapon of the Sith.
Tubes drained brown fluids from Anakin. Lungs were being removed, replaced with a thoracic respiratory to oxygenate the synthetic bloods beginning to circulate through the plasteel pump of his heart.
“Embrace the pain, my apprentice,” Palpatine crooned. “It will make you strong.” A protocol droid approached, oblivious to macabre scene as it whispered a message to the Emperor, whose mutilated face twisted in a sneer of surprise. “... alive…?”
The Emperor brooded on this. Up until that moment, everything that had transpired had done so according to his design. He had never considered that Padme might survive.
He snarled commands to the surgical droids and immediately their actions changed, becoming almost frenzies, as their implements began to whirr, carving great chunks out of the person they had striven so hard to preserve until now.
The imposing armor was wheeled from the room and, in its place, was brought the outer shell of a FX-8 Gynaecological Assistant droid, hunted down from the EmPal SuRecon maternity ward and torn apart.
Anakin moaned in horror, as much at his fading connection to the cosmic Force as the removal of his flesh, as the droids hacked away, not just at his body but at his soul, leaving little more than a head and upper chest stretched about life support apparatus.
He felt cold metal parts being layered over his remains, hissing as their seals suckered onto his exposed flesh. Delicate new droid limbs were being attached to his joints, like a doll being assembled. Within his new carapace flooded cool numbing gel over his raw nerves, finally extinguishing the pain and linking his nervous system with the circuitry of his shell. A mask slid over his face, sealing him forever inside.
And upon his chest, he felt two pendulous weights become a part of him, which swung heavily downwards as the table tilted upwards. As his nerves meshed with circuitry, he felt the cold air over his engorged nipples.
“Lord Vader? Can you hear me?”
Sensors in the shell that imprisoned his head fed data directly into his brain. In shades of sickly pastel, a vision of the room became clear, Emperor Palpatine leering down at him over two spherical black mounds. Down? Vader realized he was staring up at the crooked old man. How small am I? he screamed silently. The form he found himself in stood little over 4 feet tall. Is there anything left of me?
“Lord Vader? Can you hear me?” Palpatine repeated.
“Where is Padma? Is she safe? Is she alright?” Anakin pleaded.
The voice that emerged from the facial grill was soft and lilting, the sickly sweet tones of assurance used by all midwife droids.
“It appears in your anger you… induced her labor,” Palapatine said. “She is being held in the Polis Massan labor ward under heavy guard with two newborns who may prove in time to be integral - or detrimental - to our new Empire." His grin was lecherous, his wicked eyes flicking over Vader's volumptous body. "Only a midwife droid could ever hope to get close to her."