My valentine for my good buddy Tasha!

This takes place in my Tiny Finn AU, co-writte and planned with my friend Tasha, who does a bit of writing on this site under the name The Stinky Foot; if you haven't read the stories for that yet, it's an alternate continuity where Marceline was never vampirized, but was frozen by Simon Petrikov to save her life and woke up in what is the modern world. Ooo doesn't not exist as in-show; instead it's more of a post-apocalyptic setting similar to Fallout or Borderlands (not that Borderlands is apocalyptic, but the setting fits). She met Finn not long after, and here Finn is inexplicably tiny, about six inches tall or so, though he is as strong as he would be at full size, not unlike a Discworld Nac Mac Feegle. Princess Bubblegum is simply Bonnibel here, a blob-girl of sorts who looks pretty much like Bubblegum but made of pink goo. Flame Princess is also present, as a fire giantess cast out of Muspelheim for some unknown reason, and is simply called Flame until me and Tasha can devise a better name.

Disclaimer: I don't own Adventure Time, or make profits off it.

They were older and taller, but Finn was still tiny and not so much taller, and he didn't mind too much because Marceline was the best perch ever.

She giggled as his hands, tinier than her fingertips but impossibly strong for their size, levered him up over her shoulder until he was sitting up there, his bottom perched happily on the angular bulge of her muscular shoulder. "C'mon, mang, you know that tickles!"

Finn giggled. "But you like it!"

Marceline's skin always went a funny color when she blushed, that pretty pale blue-gray turning a little bit red on her narrow cheeks (and Bonnibel had told him it was because she had human blood under there, no matter how much she went on about being a badass half-demon, the other half was squishy silly human-ness), and she went so bright again. Finn grinned, counting it as a number 6 on his personal Marceline Blush-O-Meter. "Stop it, mang, pfftt!"

"Yep, you like it."

Marceline had long ago traded her overalls for a special jumpsuit Bonnibel had made for her, and a long dark trenchcoat with tons of differently sized pocket-pouches for Finn to sleep in or just hang out; the fluttering edges of her coat flapped around like bat-wings as she swiped her hand on Finn, knocking him over with two fingers. He went right off her shoulder, smiling without a trace of fear; Marceline reflexively caught Finn, and he giggled some more as he bounced on her palm.

"I knew you'd catch me."

"Pfftt," Marceline muttered, blushing worse. "No you didn't!"

"Yeah, huh! You always catch me!" He smiled up at Marceline, as open as ever in his love and near-worship of her. "...Always."

She smiled down at him, cupping her tiny human in both hands. "...Heh heh. Okay." She kissed him, gentle and soft.

Finn giggled as a fang nearly as big as he was nudged against him. "Your teeth are pretty!"

"Pfftt, I know." She hoisted him up, cocking her eyebrow. "You said you had something for me. What is it?"

"I made it myself!"

"But what is it?" Her tone was cajoling and impatient at once, whining and needy. "C'mon, tell me!"

Finn giggled, and gave her directions.

Marceline said out at once, tucking Finn into a pocket and taking off on all fours after she made sure he was secure and safe. She moved quick and fast, loping like a wolf, and in fact she passed right through a pack of wolves that she and Finn had won leadership over through right of conquest, and she kept moving all the way down to a small copse of ancient trees, taller than buildings and so old she had remembered seeing them being tall even before she had been frozen to save her life.

Her heart skipped a few beats. "Hey..." She said, remembered. "This is where we met!"

"Yep," Finn said from her pocket, poking his head out. Impishly, she nudged him back in with a finger. "It's where I found you," his muffled vice said.

"Where I found YOU," Marceline said off-handedly.

She ventured in; propped where no one else would easily see it, in the very spot where she had ventured out of the magically-created frost chamber that had saved her life, there was a small box, shaped like a heart.

She stepped close to it. On it, crudely written on strips of taped glued to the front (and written in the unsteady font you got when you had to write with when pencils and pens were bigger than you) was 'TO MARCELINE' and 'FROM FINN'. Her mouth suddenly dry, she picked it up and opened the box.

There wasn't candy inside, that would be too... normal for Finn. There were bits of meat though, preserved in bits of salt and spices that she liked. Little drops of special sauces that she had once spent months trying to find, all right here for her. And little rolls of paper, and when she opened them up she saw the love poems written on them; clumsy but earnest, and on top of a bunch of other goodies there was a slim but wonderful scroll of sheet music for the guitar, for the band that she and Finn and Bonnibel and Flame did when they were together.

"I made it myself," Finn said again from her pocket. He paused, too honest for his own good, and amended, "Bonnibel helped. But it was mostly me. Hee, hee!"

Marceline swallowed, and blinked away happy tears. "Thanks, Finny." She considered, and delicately picked him up out of her pocket. Finn had a moment to blink up at her looming presence before she kissed him, soft and sweet on the face, her lips swallowing up his head and sweet wetness for a moment.

When she let him go with a faint pop, Finn was blushing and giggling, and she smirked again. "Thanks, buddy," She said.

"Anytime, buddy," He said, kissing her finger.