The Kyuubi allows the curse mark to take over control of Naruto's mind creating a new being

Kyuubi snorted before laying it’s head down. What did it care if it’s host was twisted into a creature of evil and corruption? Naruto would become stronger, which would make it look better by having a strong host. Besides, it was rather interested to see how the seal would react to the boy’s lust. Elsewhere in Naruto’s mind, Anko let out a screech of agony as she was assimilated by the cursed seal, her memories and techniques added to Naruto’s as the shard of Orochimaru’s soul finally reached Naruto himself. The shard lunged forward, infecting the helpless boy before he could react. But Naruto’s will was strong, strong enough that while he could fully reject the shard, he could redirect it towards his most recent emotion: lust. Strengthened by the lust Naruto had felt while controlling Anko, the shard went about intensifying his lust, which, coupled with Anko’s new body, ensured that Naruto would become the ultimate femme fatale, a seductress and nymphomaniac that wanted sex, lots and lots of sex. And material comforts; and woe to anyone who she had to crush to get what she wanted. Seduction, bribery, threats and ****, she would use whatever means necessary to get what she wanted.

Within the chakra shell, Anko’s body was undergoing extensive changes to accommodate the Kyuubi’s chakra. After ten minutes, the shell finally dissipated, Naruto collapsing to the floor in an exhaustion. She slowly stood up and walked to Anko’s floor length mirror, marveling at the beauty of her new form. She had undergone an impressive growth spurt, growing to an impressive 5’11”. Gone was Anko’s pale skin, replaced by a rich mocha color. Her hair was longer and was black with yellow highlights that fell down to just above her shapely rear. Her pupils were a bright cerulean blue with slitted pupils with dark purple markings above her eyes and thick, glossy lashes. Her ass had once again expanded, now reaching ridiculous proportions. Like her ass, her breasts had once again expanded, reaching a buxom EE-cup with soft pink areolas. She tentatively groped her new breasts, a soft moan escaping her ruby lips as arcs of pleasure raced up and down her spine from the simply touch.

She twisted her neck to the side in search of her cursed seal, curious to see if her new state was the result of her Version 2 transformation. Unsurprisingly, she didn’t find it, but when she looked down, she found that if had migrated south, now resting just above her shaven pussy.

Hmm...she would need a new name now, Naruto simply wouldn’t do. After a moment of thinking it over, she decided her new name would be Ankruto. She licked her lips as she thought of all the people she could manipulate in order to gain power. Hell, she could just posses Tsunade and use the position of Hokage to gift herself with wealth and power right now. Another moan tore its way from her throat as she continued to grope her breasts. No...first she needed to get laid, then she could go out in search of power and wealth.

"I am neither Naruto or Anko, I am Ankruto!" the new being states.