Marshall POV:

Fionna and Gumball were taking their time, so I headed towards the doors to go find them. When I got to the doors I bumped into somebody and I looked down I saw It was Fionna.
“Oh there you are Fi, I was about to go and find…” I stopped when I saw her face it looked like she had been crying. “Fi, are you ok?” I asked worried.
“Yeah I'm Fine Marsh” She said giving me a small smile.
“No you’re not, you’ve been crying what happened?” I reply.
“I… I don’t want to talk about it” Fionna says in a small voice.
I can tell it must of been something to do with Gumball, If I find out he hurt her in anyway i will kill him. I sense she’s pretty upset, so I don’t press her for any more Info. Then the music starts and everyone grabs a partner and heads to the dance floor.
“Come on Fi, let’s dance” I say grabbing her hand and pulling her towards the dance floor.
" Marshall noooo, you know I can't slow dance!" Fi says whinnying and trying to pull away.
I laugh " Just follow my lead" I tell her, as I pull her in close.

Fionna POV:
This is my first time actually dancing with Marshall, and I'm surprised that he's actually a really good dancer. Although when you have lived for a thousand years I suppose you pick up a few things. I'm trying really hard not to put my foot in the wrong place and muck up, but soon enough I get the hang of it and start to dance in time. I look up at Marshall to see he's staring down at me, this makes me blush.
" Fionna..." Marshall says.
" Yes?" I reply.
"Fi, I have to tell you something"
"What is it?" I say, abit of concern in my tone.
Then he starts to blush, which surprises me because it takes a lot to make him blush.
" Fionna, I love you"
I stop, did he just say he loves me? Happiness starts to boils inside my chest. I try to say I love you back but I can't I'm speechless, so I do the next best thing I kiss him.

Gumball POV:
After regaining my posture, I went inside to try and find Fionna. As soon as I got inside I spotted her on the dance floor, and she was with Marshall ... And they were kissing. My blood stated to boil I knew this would happen I screamed inside my head,I knew he would steal her from me. I didn't want to have to use Plan B but he gives me no choice, and I quickly dash off to my Lab to find the answer to all my problems.

Fionna POV:
After I kissed Marshall, he just stood there which a surprised look on his face. Oh Glob, what if I had heard him wrong and now I kissed him and messed everything up, I start to panic." Marshall I'm s..." Is all I get to say before he cups his hands around my face and kisses me, I'm abit surprised at first but then I start to kiss back. After a while the song ends and everyone begins to stare at us " Uh Marsh, I think we should get off the dance floor.." I say. He looks at me with confusion on his face until he looks around.
" Yeah, I guess we better"
" Come on, lets go outside on the terrace" I say pulling him towards the doors, He grins and follows me outside.
Once we got outside, he wraps his arms around me and pulls me in close. " Now, where were we..." He says before kissing me.

Marshall POV:
After a few minutes of kissing, Fi breaks away and rests her head on my chest She sighs in content ."Marsh, how long have you liked me?"
She asks. I pause for a few seconds before replying " To be honest Fi, I have liked you ever since I first meet you" .
This makes her smile and she gives a quick peck, and then rests her head back on my chest. I was about to ask her the same question when I saw Gumball, coming back across the gardens from his lab. I wanted to find out what happened with him and Fionna, no one makes my bunny cry and gets away with it. " Fi, I just have to go take care of something ill be right back" I tell Fionna.
" Okay" She says with smile. I don't want her to know I'm going to see Gumball. So i go inside, turn invisible and then come back out so she doesn't see me. And then I float over to Gumball, go up right behind him and grab him. " Gaaaahhh" he screams, I then turn myself visible so he can see me. " Oh it's just you" Gumball says in a flat tone.
" What happened between you Fionna?" I say cutting right to the chase.
His face stiffens a bit " I don't know what your talking about"
" You liar!!!" I hiss " you know exactly what I'm talking about, what did you do to her? she was crying!"
"If you want to find out why she was crying, why don't you just go and ask her!" Gumball replied sternly.
It was clear Gumball, wasn't going to say anything. " ugh, I don't even know why I even bothered asking you" I say and turn around to leave.

Gumball POV:
Marshall was standing right there in front of me, now is my chance I think to myself. So as he turned around to leave, I threw the potion onto his back. He didn't feel it though, I watched the potion on his back dissolve into thin air. This is it I thought,  this is the end of Fionna and Marshall. I laughed gleefully as I walked back to my ball.

Marshall POV:
As I was floating back to Fionna my back felt really funny, but I just shrugged it off. It's proberly just nothing, I thought to myself.
" I'm back" I said, once I reached Fionna.
" Oh there you are Marsh" she said with a giant smile on her face. I was about to go and hug her, when my vision started to get fuzzed and my head started to hurt.
" ugh" I groaned.
" Marshall are you ok?" Fi said her face full with worry. I was about to tell her I was fine, but I fell to the ground instead.
" Marshall!!!!!" I heard Fi yell, that was the last thing I heard before I blacked out.