For some reason she didn't flinch or stiffen at the vampire's rough kiss. Instead her chest tightened and her eyes shuttered as she felt her brain resume to it's usual consistency of mush whenever he touched or kissed her. Her fingers found their way over his chest and to his collar. He was soft and cool, yet warm at the same time. It confused her how much warmth she found in his dead body, although goosebumps still erected on her skin where ever he touched. When he pulled back not five-seconds later she remembered they were surrounded by fifty plus people including LSP and that he was not supposed to do that. She was supposed to be angry, which she was, but for the wrong reason; she was mad that he stopped.

He was about to say something. A last word or another warning, but she wouldn't let him speak. His words were silenced as she tugged on his arm and she pulled him away. Marshall was in no position to defy her, he could see the exhaustion in her eyes and had no desire to wear her down more. He let her pull him out of the party, which resumed as normal, and back in to the forest. She said nothing, and that made him concerned. Her hand slid down from his elbow to his hand and she leaned her head against his shoulder. He felt her fingers intertwine with his and give his hand a light squeeze.

"You okay, Fi?" He asked softly, slowing down to a stop. She sighed and nuzzled against his shoulder. When she didn't answer he turned to face her, only for her to rest her head against his chest again. "Fi?"

"I'm really tired, can you carry me?" She mumbled, placing her hands on the sides of his neck and snuggling it to the crook of it as well. A smile spread across his face and he lifted her legs so they were wrapped around his waist. She clung to him like a koala, rubbing her face against him with even more affection. He found it adorable as he carried her all the way home.

"We're here," Marshall whispered in her ear. She moaned wearily, her body jaded and slumped against his as she hung on all she could. Her eyes were glued shut, and she couldn't pry them open if she tried.

"Marsh...all," she murmured against his neck and held on to him tighter. He smiled and flicked on the lights of her treehouse. She groaned and buried her face deeper in to him to block the annoying light. "Off," she ordered.

"Yes, princess," he replied and flicked them back off. "You gonna let go?" Her only response was a whine like moan and another tight squeeze around his body.

"If you don't let go I'm gonna pull you off and leave you on the couch," he threatened. She shook her head and gripped his flannel.

"Do you want to sleep in your bed?" He asked. She didn't reply.

"Are you asleep?" She shook her head again, rubbing her cheek on the collar of his shirt and a part of his chest.

"Well if you're not asleep then you have to get off and walk up to your bed."

"I'm asleep," she mumbled. He chuckled and carried her over to the couch, bending over to lay her down, but she only gripped him tighter until he fell over on top of her.

"Oof," he grunted as his body pinned her to the soft cushions. "Fionna, let go."

Her body felt warm against his, heating up his chest and neck in a way that made the rest of him shiver. When he tried to lift himself off of her she did her best to drag him back down, not wanting to let go of him despite how much she knew she should've. Finally, he sighed and let his body rest on top of hers, settling between her legs and wrapping his arms around her waist.

"Fine, you win," he sighed and his head fell in to the cushions, his breath cool on the nape of her neck. She smiled slightly and snuggled against him, happy with how easy and quickly she got him to stay without saying a word of persuasion. He felt her lips against his skin, the warmth of her pucker on his neck made him grin and hug her tighter.

"I love you," he reminded her, whispering it softly in to her ear and nibbling it.

"Mmm...I like it when you say that, but I really shouldn't," she said. She felt loopy for some reason. Maybe it was because she was so tired, or maybe it was from how close he was.

"Guilty pleasure?" His voice tickled her ear. She nodded. "Does it really make you feel guilty?"

"Yeah...a lot," she replied, her voice barely above a whisper while her eyes remained shut.

"Why? I get you don't feel the same, but I don't really mind."

"No...it's not that. It's just...not real," she yawned and pressed another kiss to his neck.

"Not real? We've already been over this."

"Its...too good to be true," she rephrased kissing him again.

"Yeah?"

"Yeah...like a dream, or a part of my brain acting all weird...I just never thought one of my best friends would even like me that way let alone love me. It's unreal," she pushed some of his hair away from his nape and kissed it a fourth time. Her lips slowly made their way up to his ear, the sensation making his own eyes start to droop.

"Say it again," she pleaded.

"...I love you. I love you a lot, Fi."

She grinned and managed to open her eyes, pulling his face back to look at him. He was smiling too, glancing between her sparkling blue eyes and her lips which she was currently biting. Marshall leaned down, his hair falling over his face and brushing against her forehead. His head tilted to fit with hers and her grip on his shirt tightened just as his lips pressed to hers. It didn't take much for her to kiss him back, pulling him closer and letting their lips dance together. He smiled and slid his hand down her side, feeling the curve of her hips and pushing her body against his. Her heart started to race. 'Oh glob,' she thought. 'He's touching me.'

"Marshall," she breathed.

His tongue swept across her lower lip, begging for an entrance and pushing her more against the couch. Her eyes popped open from surprise, unsure of exactly what her was doing. She didn't know what to do. She couldn't decipher what he was trying to tell her with his body, or his tongue that somehow found its way in her mouth. All she could think about was how nice it felt for him to be so close to him. 'Is this what Gumball was talking about?' She asked herself as her eyes rolled back and her fingers went numb. 'He hasn't touched my chest or my thighs. Could this be...?'

Marshall wanted more of her. He knew he should've stopped after the first kiss, but he just couldn't. His brain was melting from her warmth, and he wanted to be closer and show her how much he loved her. Her kisses slowed down until she pulled back and looked up at him.

"I...feel weird," she told him, her body tingling where his was pressed against.

He couldn't properly process things, he was too drunk with the feeling being pumped through his body. The feeling she gave him. Before she could say anything else he shoved his lips back in to hers, kissing her roughly and holding her tight. A soft moan trembled in the back of her throat, her hands sliding down to his shoulders while he sucked at her lower lip. She didn't remember it being this warm, or her skin feeling so tight. It felt like there was something under her skin that she had to get out. Her hands continued down to his arms and stopped at his elbows. The rest of his arms were underneath her and pushing her up to him.

After a while the adventuress decided that she liked what he was doing, the weird feeling in her body starting to feel good. She kissed him back, maneuvering her tongue with his and exploring the inside of his mouth. He sighed as she traced over his fangs with her warm tongue, the heat of her mouth even more addicting than her supple lips. His hands moved over her hips and up her sides, breathing heavy at her wide hips and soft squishy waist. Fionna thought, 'He's close to my chest and my legs...but it feels too good to stop him.' Her arms drifted back up to his neck, and she pulled him closer just as his hips twitched against hers. Fionna squeaked and gripped his hair, more than surprised by the feeling that shot through her.

"M-Marshall?" She stuttered, his breath heavy against her lips and rolling his hips experimentally. Her low moan was enough to drive him crazy, rolling again and again just to hear her moan louder. "W-wait, I-" she groaned and threw her head back, overwhelmed with the sensation he provoked in her groin. "Marshall," she whimpered.

He ducked down to her neck and sucked on her skin, lightly scraping her with his fangs and enjoying how her body shivered. While he continued ravishing his tongue on her neck, his hands skimmed down her legs, hooking under her knees and pulling her closer to him. Fionna whined at the pressure between her legs, his tongue on her neck and his hands on her legs. She knew she had to stop this, but she couldn't seem to form any other word than his name.

"Marshall!" She yelled, hopefully getting his attention and making him stop. It didn't. "Marshall...st-top!" She yelled louder.

All his movements stopped once he heard her say that, his hands freezing on her knees and pulling his mouth from his clavicle. He stared down at her. She was red faced and trying to catch her breath, her blue eyes half lidded and dulled as she starred back. Her hands dropped from his neck and to her sides, and she wiped the small amount of sweat that had accumulated on her forehead. She pushed her bangs back and she closed her eyes, taking a deep breath. After a few moments of silence Marshall finally realized what he had done, and instantly felt shame riddle his body. He sat back and put a palm over his face.

"Glob, what am I doing?" He muttered to himself.

"Marshall?" said Fionna's voice. He lifted his hand from his eyes and saw her sitting up to face him. "What exactly were you doing?" He sighed.

"I...I'm sorry. I wasn't thinking," he apologized and avoided her eyes. He felt terrible, how long had she been telling him to stop? He was so out of it, all he could hear was the blood pumping through her body.

"But, what were you doing?" She asked again.

"I was...doing something that we shouldn't do. Not yet, and not for a long long time," he tried to explain.

"Do you mean...sex?" She whispered the last word. He bit his lip with guilt.

"A little bit, I'm guessing Cake told you about it." Fionna blushed. If only.

"Yeah," she lied. He smiled and ran the back of his knuckles against her red cheeks.

"I love you're blush," he murmured studying her face.

"Yeah?"

"Yeah." She smiled back, his gaze now settling on her eyes and pulling his fingers from her face.

"Hey, Marshall, can you do me a favor?" He nodded.

"Anything."

"Could you stay with me? All night?" She asked. He grinned.

"Of course."