Lucifer looks like her in terms of the smoke and morphing ^^^^ (if the gif won't load go check out Eris from Sinbad: Legend Of The Seven Seas)

Based off that prompt where it's like don't say it's name. Don't talk about it. The more you learn about it, the more it knows about you or something like that, I can't remember.

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Michael took a deep breath, a smile tugging on his lips. It was finally here. The moment where everything would turn around for him.

His family, his friends had tried to warn him, to stop him. In vain. He was attracted by it like a moth around a fire. Now here he was, at one word from his death. What better way of dying, at the very hand of what you've been chasing?

Michael had to admit, he had always been wicked. He had always been demented. If only his family knew what ran into his head at night. They'd be terrified. That was probably the reason he had found himself pulled towards it. The reason why he fell in love with the abomination.

He took another breath, flashed another smile. He was ready. He had always been ready. Now was his moment of glory.

"Lucifer," he breathed out.

Michael didn't fear what was coming next. He was calm. Scarily calm. At peace, even.

He heard a cold chuckle behind him. "Well, someone has a death wish," it said. Lucifer. The beast.

"Yes," Michael replied without a doubt, turning around to look at it. Lucifer. The monster.

Lucifer was tall, but maybe it was only an illusion. He was dressed all in black, a crimson cape falling to his feet, the hood covering his face. The bottom of the cape dissolved into twirls of red smoke. When he took off his hood, Michael almost gaped from his beauty.

He had blue eyes that looked like they were made out of ice. His dirty-blond hair dissolved into blond smoke just like his cape, the two constantly waving like he was underwater.

In his back, six wings were folded. Wings that didn't look like wings, not like bird or angel wings. Wings with feathers, sharp feathers. Wings like weapons.

A dangerous smirk on his face, a dangerous look in his eyes. He looked like a human, but every part of him claimed otherwise. So frightening it made him beautiful. Beautifully terrifying.

"I gotta say, I'm impressed. So fast? It usually takes more than just a year to find my name. How did you do it?"

Michael stayed frozen. Lucifer brought back memories. Memories he never thought he'd remember again. But Lucifer didn't recognize him. Michael had changed of appearance. Everything came back to him. His life before this. Why he felt drawn towards Lucifer. Why he felt like he knew him for forever.

Michael smiled. He wasn't like he used to. He was only human. He could get Lucifer to turn him, and to remember.

"I already had it. I searched, and it was like burned into my brain."

"Talk to me, Michael. I like you. You don't fear me, that's bold of you. Who are you, why did you call me? You wish for death, why did you call on me to accomplish your duty?" Lucifer had moved, in a fraction of second he was behind Michael, whispering in his ear.

"You already know me. I said your name, you know me. You know everything about me. And what a better way to die? It's a beautiful death, by the hand of the creature you're supposed to hide from. To die gazing at the monster that haunts so many nightmares. A disturbingly beautiful death, to the say of others. I say, it's an honour. But there's one thing you don't know about me."

"Oh, please enlighten me!" Lucifer said, with a cold, faked, sarcastic excitement, as he didn't think someone could ever hide something from him. In the dark pit that was his heart, he found the speech beautiful.

"I was reborn, Luce. My angel."

It was Lucifer's time to gape, the ice in his eyes melting ever so slightly.

"Mike..."

Michael smiled softly. Even then, it felt wrong, like a smile shouldn't be what was on his face. He stepped forward, placing a hand on Lucifer's cold neck to pull him into a kiss, Lucifer immediately kissing back. And Michael changed.

His skin turned impossibly white, his hair inconceivably black, his eyes surreally blue, all of which clashing with each other in a way that made him look like a nightmare walking.

His clothes changed. He was now dressed in pure white, adding to the pureness of his skin, a sky blue cape much like Lucifer's draped over his shoulders. The end of it and of his hair also disappeared into smoke, like moving underwater, in a fashion identical to Lucifer's.

There were also wings in his back, wings like weapons, but purely white.

When they parted away, there was no flushed face nor any ragged breath, for their hearts didn't beat and their  lungs didn't pump. And they exchanged a smile. A wicked, loving, cruel, sweet, twisted smile.

Lucifer might be known, feared, Michael had stayed in the shadows, causing much more damage. There has and will always be two it. Them. And if one was feared, the other had people begging for mercy. Lucifer was the beast, the abomination, the monster. People feared him. Michael was the nightmare, the shadow, the fear. People were terrorized of him. Lucifer was the embodiment, Michael was the idea. Which one do you fear most? The possibility of being tortured, or the torture itself when you feel it?

Michael was the legend, instilling fear, terror into people, forbidding them to look, where Lucifer was what shouldn't be looked at.

Michael had been 'killed' by a hunter thinking that he was the beast. That hunter was wrong. Michael lived, was reborn. The idea isn't the object. You can kill the beast, but you can't kill the legend.

And now, the idea was back, fully back, ready to reclaim his throne and bring the world into chaos once again.