Shinkufuryō no Naruto (真紅不良のナルト, "Naruto of the Crimson Rogue")
Naruto's fangs flashed dangerously as he gazes upon his victim; a pink-haired young woman who was bleeding profusely.
"So... Sakura... now the shoe's on the other end."
A smooth hand slides along his right arm, before it is grabbed in a loving manner. The girl who slid next to his body smiled evilly.
"So, Naruto... this is that horrid bitch who abused you?"
"Yes, Flandre... this is the skank."
She giggled for a moment, before she flashes her hand out, and a long claw mark struck the woman in the face. Sakura recoiled in pain.
"Hey, Flandre... why don't we let her go... and play a... game... ne?"
The winged blonde glances from Naruto, to the pinkette trying to crawl away.
"Hmm... what kind of game... did you plan, love?" she questions, as she leans close and nips on his neck.
Naruto shivered as her fangs broke into his skin, before she released him and licks at the drawn blood.
"How about a nice old-fashioned Danmaku Hunt?" he whispers huskily.
Flandre moans in delight, as Naruto then licks at her neck, his fingers glazing along her arms giving her goose bumps. She then grabbed him and kissed him, initiating a furious make-out session that left her clawing at his chest, and him to possessively grasp her lower back and pull her that much closer to his own. Sakura scrambled to get away, ignoring how hurt she felt as the two were distracted by their sudden make-out session. Once she vanished into the foliage and begins to make her escape, the two lovers' eyes glowed fiercely as Naruto's bat-like wings grew out his shoulder blades and stretch out wide, the color of a noxious purple and blood orange.
Parting from the kiss, the two took to the air, separate, and fly after their delicious prey. Sakura was in a panic. She didn't know where the hell she was, and she knew the forests she ran through were not what she knew in Fire Country. They were completely different. In fact, she doubt she was even in the Elemental Nations anymore; the forest surrounding her and the surrounding landscape was all foreign. She yelped when a large branch from a tree shatters in a purple fiery explosion. She rolled to evade the falling chunks of the wood and saw in the air Naruto. This wasn't the Naruto she knew; the Naruto she knew didn't have vampire-like wings out his back, or wielding purple fire.
This couldn't be the Kyuubi's powers...
"Time to die, skank!" Naruto's voice echoed demonically, his eyes taking on an evil glow as he threw the purple ball of fire. The ball then explodes and spreads into smaller bullet-like flame sparks, which then further spread in a blossoming wave. She screamed and ran, trying to avoid the strange jutsu, but the heat of the flames was really intense.
Suddenly something struck her and she felt a sharp pain as she collapsed. When she saw what looked like a type of sharpened crystal spike in her right leg, her last thing before death claimed her soul were the glowing eyes of Flandre and Naruto as they tore at her savagely with their claws and teeth.