Disclaimer: I do not own Billy and Mandy. Adam Burton does, and that's why he rocks.

Billy and Mandy are 20 years old in this fic. I'll let you figure out everyone else's ages.

So, without further ado, I give to you:

THE GRIM WEDDING OF BILLY AND MANDY

-1-

"I never t'ought I'd see da day," Grim said as he helped Billy with his bow tie. "And yet I had a feeling dis day would someday come."

"What day?" Billy asked.

Grim tilted his skull. "Don' tell me ya don' know why we in a church wearin' tuxedos, mon!"

Billy blushed. "Actually, I don't."

"I cannot believe dis! You and Mandy been plannin' dis ting for months!"

"No, wait! Don't tell me! Uh…my funeral?"

"Billy, are you dead? Besides, if Mandy finds out ya forgot, she WILL be plannin' yer funeral!"

Billy thought for a moment, and he shrugged. "Sorry. I got nothin'. What's today?"

Grim sighed. "I hope ya don' forget dis when yer at dee altar! It's yer wedding day, mon!"

Billy's eyes widened. "W-w-wedding day?" He shrieked and hid under a table.

"What's wrong, Billy?" Grim asked.

"I'm n-n-nervous…"

"Pre-wedding jitters, huh?" Grim guessed. The young man of 20 years nodded violently, confirming that Grim was right. The skeleton smiled with understanding. "Billy, many people get da jitters on der wedding day. It's perfectly natural."

"R-r-really?"

"Yep! In fact, Mandy probably has dem now."

-X-

"Alright! This wedding better go off without a hitch, or else!" Mandy yelled at the zombie bridesmaids. "You and you, get my veil! You there, with the eye-patch, can shine my shoes! And you, my maid-of-honor-by-force, just stand there and look pretty."

Mindy screamed, but it was muffled by the gag around her mouth. Her arms were tied behind her back and her left ankle was clamped down by a ball-and-chain.

"And you said I'd never marry, huh?" Mandy said to Mindy. "Well, look who's groomless now…"

-X-

Billy got up from under the table. "I…I don't know if I can go through with this…"

"It's too late for dat, mon," Grim said. "And I wouldn't experiment on it eit'er. Yer da first person she's ever loved wit'out her asking me to take out her heart. She's givin' up hatin' all tings just by loving one ting, and an insignificant ting at that! So if ya break her heart…well…who knows what would happen?"

Billy sighed. "I know. I mean, I love Mandy so much, and I want to be with her forever, but there's just…so many people out there…and everyone will be staring at me."

"Billy, der was a time when ya used to streak constantly," Grim said, shuddering at the memories, "and ya choose a moment like dis to get stage fright? Talk about yer bad timin', mon!"

The red-headed man nodded. "You're right, Grim! I gots to do this! For Mandy!"

"Dat's da spirit!" Grim cheered. "Now, I'm gonna check up on Mandy, 'kay Billy?"

"To see if she gots the jet-tears?"

"Uh…yeah…" Grim mumbled as he left. He didn't have the heart to tell him that he said "jitters" wrong. He knocked on Mandy's door. "Hello? Mandy? It's Grim. How's it goin' in der?"

The door opened and a zombie peered out. It's left eye fell out.

"Well, Mandy, I tink ya never looked lovelier," he laughed.

"Grim, I'm in here," a voice said sternly.

"I'm only kidding," Grim said as he entered the room. What he saw shocked him.

Mandy was wearing a WHITE dress?

Of course, it was her wedding, but it was still a shocking sight.

"Judging by the look on your face, either you're surprised to see me in a white dress…or you're a pervert," Mandy said monotonously.

"Ha, ha," Grim mumbled sarcastically. "So yer a comedian now, huh?"

"So…how's the groom doing?"

"Well…he's a bit nervous. Wedding jitters and all."

Mandy let out an annoyed sigh. "It's just like Billy to ruin something as important as today."

Grim shook his head. "If ya talk like dat about him, mon, ya shouldn't be marryin' him. Besides, I'm sure Billy would do anyt'ing to try and make dis da best wedding you could ever dream of."

"And in doing so, he'll probably ruin it faster," Mandy scoffed.

"Dat's enough, child," an annoyed Grim said. "Be grateful dat der's actually someone who loves you dat you won't beat up."

"Look, Grim! The only reason I let Billy get away with so much is because of our history together!"

"Den why are you marrying him?" Grim asked slyly.

Mandy was at a loss. But after a long silence, she finally spoke. "Because of our history together," she repeated, and paused again. "And because he…loves me…"

"Irwin loves ya, too, but ya shove it in HIS face."

"Billy is the only person that ever loved me for me, not my looks," Mandy replied. "All people like Irwin want is to marry a hot chick, but Billy…well…let's just say he's the only guy willing to love me for me. He's the only guy dumb enough to do so."

Grim sighed. "I agree dat Billy is one of da dumbest people alive today, but being in love wit' you is definitely not proof of dat. If you ask me, dat actually makes him pretty smart. After all, he was smart enough to get you to love somet'ing."

Mandy didn't say a word. Grim was right…for once. Grim noticed the silence and decided he should leave her alone, so he went back to Billy.

The blonde girl just stood there, trying to comprehend the idea of Billy being smart. It was very hard to do.

After a few seconds, she shrugged it off. "I still think anyone that would love ME is an idiot," she said to herself, "but maybe Grim has a point…"