Her sword swung at her side as she made her way down the familiar path to Marshall's house in the dark. She had to go through the forest, but as long as she was quick about it, she should be fine.

Silently, she ran through the forest, keeping her ears and eyes sharp for any unusual movement. When she was halfway through, she became more confident in her safety, and slowed to catch her breath. It was a full moon tonight, and she was lucky for it illuminated her way through the otherwise very dark trees.

She heard the fluttering of wings behind her, and turned see what creature could have made it. Fionna scanned the sky behind her, but saw nothing. She picked up pace again, focusing on seeing Marshall's surprised face at seeing her at his door. A quarter mile, and she would be through the woods, and into the cave.

The screech of a bat called behind her, and she ignored it, not seeing any danger in the little night creatures. Then suddenly she was stopped by a rigid form standing in her path. She slammed into it, unable to stop her trajectory in time, and fell back. The form was familiar, it was Marshall's bat form, his wings opened wide to block her path.

"Marshall!" She breathed with relief, clenching her heart. "Oh thank Glob it's just you."

She got up off the ground, brushing dead leaves off of her butt as Marshall retreated back into his human form. He seemed strangely stiff, his eyes shining silver and gold in the darkness of the night. He approached her, shaking his head, as if fighting some kind of inner struggle.

"You scared the crap out of me!" She said chuckling, but her laughter died as she noted the strangeness in his demeanor.

"What are you-" He groaned. Then, by complete surprise, he punched himself in face, and dug his hands into his hair to pull at the tendrils. Fionna was immediately concerned at her friend's behavior, and she moved to approach him.

"Stay away!" He screamed at her, but contrary to what he said, his arms reached out to clench her by the shoulders violently.

"What are you doing?" She cried, scared by her friend's sudden violence. Fionna never got an answer. Her back was pushed back harshly into a nearby tree, knocking the breath from her and slamming her head against the bark. She cried out in pain, as the back of her head split from the collision. Her small arms pushed against Marshall's torso in a small attempt to keep him away, but he was much too strong for her. Never had she truly felt his honest strength, but he showed it now. He was a wall of muscle and bone; immovable.

"Marshall!" She screamed. Her cry fell on deaf ears. He was lost to delusional famine, but her voice did stall him. As if some small part of him fought for restraint. He released her shoulders to dig his fingers into the bark of the tree behind her. His breath was rough and coming in sharp inhalations.

"What's wrong with you?" She whispered shakily. His pitch-black eyes caught hers, and he gnashed his teeth at her. She had never been scared by him before, but at that moment, she was truly terrified. His eyes widened and captivated her stare, it steeled her to the spot. Even her lungs barely had the strength to move. Breath came to her in short bursts, her joints feeling frozen together. So, this was the power of a vampire. He had taken total control of her.

Once in control, he pushed his body against her, his leg pressing between hers. A shock ran through her, and even though she was in a gravely dangerous situation, it was a shock of excitement. Her breath hitched in her throat, and Marshall buried his face in the crook of her neck. She felt the graze of his teeth there, and it raised goosebumps on her skin.

She was about to die, surely. That's what vampires did, right? They sucked you dry like how Cake sucked all the jelly from the donuts. So why was her body responding this way? Why was this thrilling? She took a large intake of breath, finding his control relax as he was distracted with her neck. His hands shuffled between the fabric of the clothing between them, and Fionna felt him hitch her leg above his waist.

Oh Glob, what was he doing? Why wasn't he just poking a hole into her neck and slurping the life from her? Marshall pulled his face away from her neck to capture her eyes again. She was overcome with a strangely calm feeling, her body becoming slack as he held up her weight. She couldn't stop staring into his eyes, they were dark and deep, and she felt warmth course through her. It felt like love, or what she imagined love felt like, anyways. Marshall pressed his forehead against hers, his stare unbreaking, as his other hand found its way between her legs.

No one had ever touched her there before, and she didn't even know anyone was supposed to until Marshall touched her. It was almost shameful, the rush of heat she felt from that small sensation. His fingers, impatient, pulled the fabric of her underwear roughly to the side, and he adjusted himself to press against her. She couldn't see what was happening, her eyes were transfixed on his, but when he pushed himself inside of her, his eyes did roll back into his head, and Fionna, temporarily freed from his control, cried out at the sensation. Her hands clasped around his back, clenching shakingly onto his shirt.

It was sudden, it stung, it felt altogether strange, and she locked her eyes closed. He ground against her, wholly distracted now, and Fionna, although freed from his control, was captured between his body and the tree. She whispered his name between shaking breaths, and it felt so wrong. This was not Marshall, at least not the one she knew, but she called out to him anyways. Perhaps if he could hear her, he would stop. But what she did not know was that both Marshall and the monster inside of him wanted what was happening, and it caused the beast he had become to squeeze her jaw and capture her mouth in a rough kiss. Her hands balled into fists and she felt his body thrust in an increasing rhythm. Her body felt strange. She felt electrified, as if she had been struck by lightning and she was waiting for the roil of some intense thunderclap to unfold.

Fionna began to forget the danger she was in as pleasure overwhelmed her senses. For a moment, she was holding on to the Marshall she knew. The one who gave her little butterflies when he played songs for her on the guitar. The one who took her on pretend dates because no one else had asked her to Drive In Date Night, and it was all consuming.

Marshall adjusted her legs in his arms, his mouth finding her neck. The thunder within her began to roll, and she heard Marshall breathing quicken, moaning softly as he continued to grind into her. He suckled at her neck, and it sent shivers through her. She had almost forgotten that she was currently the victim of a vampire attack.

It became suddenly clear to Fionna that she had just seconds left to live. Whatever was happening right now was quickly coming to an end, and the way Marshall's fangs skittered against her skin assured her that it would all end soon. Yet that thunder was still coming, her body tensing in some unknown pleasure. Tears pooled at the rim of her eyes, as she felt his body suddenly pick up pace.

Then she felt his teeth finally sink into her skin, her body unleashed in convulsions as Marshall buried himself within her. He pulled desperately at her neck, and it made her dizzy. Her head felt light, the pulsations of her body beginning to slow and ebb. Her heartbeat thumped in her ears, and she could hear it turn faint. Marshall held the slackening form of her body in his arms. The more he drank from her, the more his sanity returned.

It was like a dream. All he felt, all he could taste was Fionna. He could hear her breathing at his ear. Slowly, slowly breathing. Reasoning crawled its way through him, but he hadn't regained control to stop. It was so good, so damn good.

Fionna's vision became blurry and blackened, her head slumping forward as she lost consciousness.

The lasts thing Fionna heard before passing out was the sharp bang of a gunshot.