In the seconds that followed I felt a warm gushy thing slide in my mouth

Why?

Regardless it felt amazing, but was missing something

Over and over again he kissed me.

"G-g-g-g-guys... um... Fionna.."

"What!"

My voice seethed through my teeth

If he wasn't a dude, I'd call him mother nature. AND If he wasn't a vampire, let alone the king, and the ruler of the undead. 

I took a step back away from him with every step he took closer till I turned and sped to the full body mirror a couple feet left of Micheal and Cake who were still trembling, but had relaxed a little and moved away from the wall to stand next to Marshall

What met my eyes in the mirror caused me to go stiff and rigid in horror.

My Hair had gone pitch black, the bangs and back had been cut diagonally in a North-East kind of cut and the longest part went slightly past my shoulder. It was extremely shiny, but not because it was clean, it was soaked in blood.

The blood was flowing, but it didn't drip, kind of like Marshall's shorts.

I had a leather belt with two ling, sharp demon teeth on my sides and human teeth in a row going around the middle. The belt was so tight it felt like a part of my skin, but it didn't hurt.

My shorts weren't even shorts. They were thick sharp demon teeth. similar to the demons in the ocean with the fins, but bigger. Cake calls them sharks. They were tipped with the same blood that soaked my hair. 

I spun and the teeth stuck straight out, then rested again when I stood still.

An extreme soft silk wrapped around my chest like a tube top, stained a dark velvet Maroonish red, again, by the blood.

But this time the blood dripped from the corrupted silk onto my abdomen, becoming a moving tattoo and traveling down my stomach, bursting when it "hit" my belt like a water drop from a leaky faucet onto the water in a clogged sink.

Around my belly button was a white skull tattoo with blood red eyes and the tattoo blood pouring from its mouth like a waterfall.

I could feel it going into the teeth covering my legs like a guns ammunition.

I had two large swords stuck into each leg, three large, long kitchen knifes on each side of my abdomen, and two thin, long, sharp daggers that could slice through diamond, and two thick, short, and mildly sharp daggers on each arm.

A pattern that appeared carved, lined my abdomen and  collar bone trailing down my arms to my elbows.

My eyes, even though I could see out of them clearer than ever before, were as deep and dark as black holes.

It was as if they were solar panels, sucking in light energy and projecting it so I could see better, but I wasn't sure if that was actually how they operated.

From them two symmetrical, still, blood tear tattoos ran halfway down my cheeks.

On my neck my veins popped out and were a deep blue. The cooler color compared to the inky maroon red calmed me down a bit.

Every time I took a breath black miasma strew from my mouth in small billows, and surrounded me revealing what seemed to be an invisible shield, not like Marshall's bubble, more like a full body coat, but for only a moment before fading.

My skin was snow pale. There was no pigment as far as I could tell. 

I looked like a corpse.

A lovely, yet terrifying corpse.

I broke down into tears, blood, tears.

The tattoos became animated and I heard a couple of screams.

I looked over to my right to find blood pouring from Cake's and Micheal's eyes.

I started hyperventilating and screaming which made them cover their ears and their skin started to cave in.

I desperately tried to calm myself, but the sight in front of me was to much.

Suddenly I felt warmth before me, and before I could turn around a hand covered my mouth.

A cool hand that felt like running water.

Marshall's hand.

He let me turn around and look at him, removing his hand.

"I'm a monster Marshall! I hurt people, I'm a reaper! I- I'm life's curse..."

He wiped my tears as I screamed until they shifted back into the tattoos they were before.

his eyes glowed into mine, making me feel sleepy.

He rested his right hand on my cheek and wrapped the other around my waist, pulling me into his bubble.

"It's alright Fi, it's gonna be okay. You're not a monster. You don't have to be a curse. You can guide people to peace. Still Destroy the evil in Aaa. Life Can't live without Death, it's simply a part of it. Like you're a part of me. If anyone's a curse, it's me. Cause, sometimes, life's a living hell, no matter how beautiful. Everything has a good and bad side, okay? You're still and angel Fionna... the only difference is you've got black wings. I just gotta stick it out. Will you stick it out with me, even if that's forever? If you wont love yourself, I'll just remind you that my love for you is inexhaustible and that I'll fill the hole where you should love yourself with it until you do. Got it Fionna? I love you, and as long as I do, no one else has to."

I stared into his eyes a little longer until I felt them close, then I collapsed into him, his right hand leaving my cheek, gently holding my head to his chest in a comforting hug.

I waited for her to close her eyes before I let her fall onto my chest.

"Okay." She had mumbled sleepily before I watched as she transformed back to normal, and so had I.

I was surprised by both of our transformations and would have to ponder on it later with her after she had gotten over the shock.

Immediately after going back to normal Fionna was wide awake again and looked a me for a moment before swiveling in Cake and Micheal direction, slapping her hands over her mouth.

"Their,  T- Their...!"

she started sobbing uncontrollably again, the words coming in muffled spurts through her fingers before dropping them back to her sides and backing slowly into me until her back touched my chest.

I wrapped my arms around her, taking in the sight for myself.

It was so disgusting and gruesome I struggled to prevent myself from vomiting...

Their eyes were either exploded or sucked in. fur and skin stretched and tattered like and old rug, and spatter with blood.

Some bone poked through and guts had started to slide out through openings.