Finn's heartbeat increases tenfold when he sees Bonnibel Bubblegum flipping her fluffy pink hair and talking to—well, more like rebuking—Lillian Space. Despite the stern look on her face, she still manages to look cute, he thinks as he clutches his textbooks tight to his chest and slowly makes his way over to her. She looks up, noticing him before he can even take another step.

"Finn!" She waves him over, and he feels the heat rising in his cheeks as he scuttles toward her. "Good timing. Can you do a favor for me?" As she speaks, an aura of roses surround her and she's in slow motion, but only in his eyes. This is it, Finn! Do what you came here for!

Nodding determinedly to himself, he finally chimes in. "H-hey, Bonnie?!"

Bonnibel pauses, confused.

"Um—"

"Wait, were you even listening to me? Finn, I asked if you could babysit Goliad since I've got somewhere to be," she explains, arms folded with an irritated expression, before checking her watch. "Oh, I'm nearly late—"

Suddenly, a tan arm wraps itself around Bonnibel's shoulders, and the smirking face of Marceline Abadeer is sent Finn's way, then hers. "Ready for our date, Bonnibel~?" she queries, kissing her now red face.

"M-Marcy! Not in front of Finn!"

The pupils in his blue eyes crumble apart and fall to the bottom of his irises.

"Why not? Think he'll be jelly~?"

"That's not it!" Bonnibel exclaims, pulling her in and turning herself and her away from him. Lowering her voice, she whispers, "He doesn't even know—"

"Y-you're gay?" he finally asks after a moment, a little over the shock.

Bonnibel composes herself, pulling away from Marceline and standing up from her spot on the cement stairs in the courtyard of OooAaa High. "Y-yes. I apologize for not telling you earlier.."

Then, he does the stupidest thing in the entire existence of mankind—something that would make a dog's butt seem like a genius.

"Oh, really?" He perks up, forcing a smile while sweat drips from his face and pit stains begin to form on his stark white hoodie. "That's a coincidence, 'cause I'm gay, too!"

Bonnibel is surprised, but yet not at the same time. She'd always suspected her strange little, slightly effeminate friend of being a homosexual. "Oh? Do you have a boyfriend?"

"Yup!" Another stupid choice. Finn, you're killing yourself here.

"What's his name?"

"Actually, you know him," he says, eyes frantically scanning the area. Then, he sees him, sitting on top of a picnic table and inhaling a whole container of strawberries. "It's Marcy's brother—Marshall Lee!"

"What? But he's—"

Bonnibel cuts Marceline off with a surprised squeak, jaw having had dropped to the pavement. "Y-y-you—"

She points to him, then Marshall. "a-a-and-and him?!"

As if sensing his name coming up in conversation, Marshall Lee Abadeer traipses over toward the trio and smirks. "Someone talkin' 'bout the sexiness that is me?" he inquires before locking eyes with a very flabbergasted Finn Mertins. "Ooh, hey, cutie~!" he greets the boy, hugging his waist and making his way up to his face, taking a lock of his hair in two of his fingers and sniffing it.

Bonnibel has never seen Finn and Marshall interact before, and now she understands why! "Oh my glob! You're embarrassed!" she comments, pointing at a searingly flustered Finn, who is being nose-molested by someone who actually only pines after him, whilst he pines after Bonnibel.

"W-what?" he interjects, shoving Marshall's face and puckered lips away. "N-no way, dude—I mean dudette—I mean Bonnie!"

"Awe, you're so adorable~!" Marshall comments, hugging him close and rubbing his leg against his crotch, making him very uncomfortable.

"Well, best of luck to you two! We'll be off, then!" Bonnibel chirps, arm-in-arm with Marceline, before sauntering off happily.

"Wait!" Finn says weakly, slumping.

She didn't hear him.

"Don't worry; Big Bro Marshall's here for ya~!" Marshall exclaims, kissing Finn's cheek, then rubbing his own cheek against Finn's.

Ever since they were kids, Finn always thought of Marshall as another big brother, Jake being the first. Therefore, he always called him "Big Bro", but grew out of it when he turned thirteen. Marshall still likes to think of himself as a big brother to Finn, earning him the accusation of having a little brother complex. Of course, he admitted to it, explaining how having a little sister is "no fun".

"Ugh.." he groans as Marshall starts squeezing his ass.

Two Weeks Later

"C'mon. Call me big brother," Marshall demands, having handcuffed Finn to his bed. "Then Marshy will let you go~."

Finn, extremely flustered as Marshall begins undoing his belt and pulling his pants down, gulps and decides to speak after he tugs on his underwear. "B-big brother.."

Marshall grins coyly. "What was that?" He lifts the blonde's shirt up and licks his navel.

Trying not to fidget, Finn repeats himself, only to discover that this isn't the correct way to say it.

Marshall runs his tongue across his nipple, stirring up heat in Finn's lower region, which is covered by Marshall's leg tight in between his thighs. "Ah.." he moans, face burning like Hades as Marshall tugs his underwear down, finger poking his erection. "B-big bro Marshall! BIG BRO MARSHALL!" he shrieks as Marshall's tongue hovers over his sweet part.

"Aw." The raven sits up, sighing in a chagrin manner. "I wanted to tease you a little more...or taste you~."

"W-w-what the fuck is wrong with you?!" Finn screeches as Marshall moves his clothes back into place and licks his earlobe. "Why are you...so...so...pervy?!"

Marshall uncuffs him and sits him up, pulling him into his lap as he rubs his now sore wrists. He'd been in those cuffs for two hours, one spent waiting for Marshall as he dicked around in the shower, thirty minutes being forced to watch as the twisted older teen jacked off to the sight of him in handcuffs...directly in his face...and another thirty being teased, touched in bad places, and kissed and licked endlessly...everywhere.

Before he can wipe it off his face, Marshall licks his own dry cum off of Finn's red-hot face, smirking. Sighing, he lies back. "That was fun, little bro~. Let's do it again, but this time, you tease me~. I think a skimpy little kitty costume would be appropriate, and I happen to have one for you in my closet~. It's just your size~."

"Like hell! I think being touched like that was enough to compel me to get a restraining order against you," the blonde growls, standing up and attempting to exit the room before Marshall dramatically runs up to slam the door, also effectively pinning him to it, just in order to stop him. "Back up."

"No. Look, Finn—I-I know I may seem super creepy and predatory, but I seriously do love you in the romantic sense. You're so smart and strong, and you speak your mind. You're adorable as fuck, and really cuddly. Your body may be extremely exceptional, but your personality is even better." The look in his eyes is more serious than it's been in a million years.

What's with the sudden confession? It's confusing, and why is his heart threatening to explode?

WHAT IS THIS FEELING?!

Marshall strokes his cheek with his knuckles, expression soft as Finn stares daggers at his feet. Poor feet. They don't deserve this. Marshall deserves the intense stare even less, but he doesn't deserve to not be looked in the eyes.

Slowly but surely, he drags his eyes up like weights to meet Marshall's deep brown ones. He wishes he hadn't, though. Tears spill over in Marshall's eyes, and he lets out a cry as he slumps down to his level, pulling him into a close hug. Face burrowed in Marshall's chest, he can practically feel the older male's guilt. "I'm so sorry. I'm so sorry for being such an insensitive pervert. I know you don't want to experience your first time so young, and I know that you don't even like me. I just.."

Neither of them can speak anymore, so they just stand in awkward silence as he cries into his shoulder, his body racking with pained sobs. Finn understands. He's felt unrequited love before. Key words: 'Felt' and 'before'.

Finally, Marshall finishes. "I just love you so much. I-I don't want anyone to take you from me or hurt you. I'll never hurt you. I love you too much to even function correctly. All day, all night, you're the only thing on my mind. I get that you love Bon-Bon, but she loves Marcy, and Marcy loves her. Stop loving her so much. It hurts to see you go through the same pain. Even if you don't love me, at least fall in love with someone else who genuinely loves you back. Just know that...that even if you turn your back on me, I'll always love you.."

Finn is overwhelmed with a hodgepodge of emotions, such as love, guilt, empathy, and more. Marshall had stolen the air from his lungs from the moment the word 'love' left his lips. He realizes that all of these weird feelings he's felt for the past two weeks are the same ones that he felt for Bonnibel, and that this means that he's in love with Marshall Lee Abadeer.

"Uh..I think.." he pauses when Marshall pulls away. "I think I'm also in love with you, Marshall."

The raven blinks, cheeks crimson. He doesn't move or speak.

Finn begins to get concerned. "B-Big bro..?"

Suddenly, Marshall sighs in relief and falls on top of Finn, sending them tumbling to the floor. Pushing himself up, Marshall peers down on Finn's embarrassed features and bites his lip, this time, deciding to wait for permission to kiss him.

Finn looks up at him, relaxation in his eyes, and pulls him down into a long, passionate kiss.

In that moment, he cries. He cries because he feels so dumb for putting Marshall through all of that pain. He didn't think the feelings were sincere, but now he knows for sure. Marshall Lee Abadeer feels nothing but love toward him, Finn Mertins.

The Next Day

Bonnibel is surprised to find Finn more relaxed than usual, and more compliant as well. She watches with wide eyes as he and Marshall have a goodbye makeout session right in front of a classroom, but nearly stops being able to function when Marshall kisses Finn's cheek and hugs him before heading off.

Finn smiles, happily turning on his heel and wandering into his classroom. He remembers a moment when he had to kiss Marshall in front of Bonnibel and the entire football and cheerleading teams in the first few weeks of their fake relationship.

Now, that relationship is real.

Bonnibel knew they were faking it and wanted to intervene, but it looks like they worked it out last night.

Before, the kisses from Finn were hesitant, but now, they're genuine and happy. Not embarrassed.

Before, Marshall would squeeze his ass as a goodbye, but now, he hugs Finn and kisses his cheek. That's anything but perverted.

She feels glad that she hadn't intervened.