Okay, now I am not usually one for fluff. I'll read it. I'll squeal and grin at it, sometimes. But if I write it, I will cringe and gag. You have NO idea how much cringing and gagging I did writing this. xD But I persevered! I didn't want this haunting me any more. I had to get it out of my head!

Now, this is a Billy/Diana one-shot based off of the All I Want for X-mas episode. I watched it recently, and then the idea wouldn't leave me alone! So, without further delay, I give you...

...

You ARE that Cute!

...

"Hey Marty!" Billy greeted, grinning widely as he hovered over to his friend. "What do ya think?" He puffed out his chest, showing off his elf costume proudly

Martin snickered. "Somebody call Santa, I think he lost a helper!" He laughed, clutching his stomach as Billy visibly deflated.

"I think it's cute, Billy." Diana broke in, smiling comfortingly at the green alien as she resisted the urge to smack the blond beside her,

Billy smiled once more, a light blush covering his cheeks as he cleared his throat. "Cute enough to meet me under the mistletoe later?"

Diana blinked, her face turning red. "Er, sorry Billy. Not that cute." She looked away, face still red.

"Huh, can't blame a guy for trying," He smiled, only the slightest hint of disappointment in his eyes as he handed Martin a folded sheet of paper.

……

Diana, Martin, and Billy looked on with wide eyes; mouths hung open in shock as they watched M.O.M viciously devour the fruitcake in front of her.

"She's like a wild animal," Diana whimpered, hiding behind Martin in an attempt to avoid the flying bits of fruitcake.

"Aw, come on. It's not that bad," Martin grinned, watching the fruitcake eating contest. Hid grin quickly faded, however, when a large chunk of fruitcake, dripping with saliva, landed on his face. "Uh, I'll be right back," Martin's face turned a green that rivaled Billy's skin as he dashed away.

"Uh, why don't we go over there," Diana quickly guided Billy away from the table. "Martin will find us later." The two made their way around the party, talking to various people and wandering aimlessly.

……

"Hey Diana, where do you think Martin went?" Billy questioned, blinking as he looked around the room. "He's been gone for a while…"

Diana looked around as well, narrowing her eyes when she found no hint of her blond step-brother. "I don't know… Maybe we should look for him." She nodded to herself. "C'mon Billy, Martin is planning something, I'm sure of it!" She frowned and began walking around again.

Billy followed her, scanning the crowd around him for his friend. "But would Martin really pull something after that disaster with the presents?"

Diana turned around, raising an eyebrow at her green friend. "It's Martin."

"Oh, yeah..." Billy grinned sheepishly, rubbing the back of his head.

Diana sighed, smiling slightly as she continued her search. "Hey, maybe he's in there?" She pointed to a nearby door, decorated with various pieces of tinsel.

"The supply closet?" Billy tilted his head. "Why would Martin be in there?" He paused, the sound of laughter reaching his ears. "Never mind…"

Together, Billy and Diana quietly snuck toward the door, twin grins growing on their faces as they got closer and closer. Diana reached forward, opening the door just enough so they could easily enter. She looked around the dark room, smirking as she saw Martin. He was in the far corner, chuckling, and he didn't seem to notice them.

"One." Diana whispered.

"Two!" Billy grinned, his voice only slightly louder than Diana's.

"Three!" They cried, poised to run into the room and tackle Martin. But before they could move, Martin spun around, grinning wildly as the lights flipped on.

"Ha! We've foiled whatever little plan you-… What?" Diana blinked apprehensively as Martin continued to grin, a few snickers escaping him as he pointed up.

It seemed as if Billy got it first, for he looked up, his face turning scarlet. "Uh, Diana…" He began pointing up as well.

Diana was still confused. "What are you gu-…" She paused, her face turning beet red as she eyed the mistletoe above her and Billy's heads.

It was then that Martin broke out into a laughing fit, unable to hold it back any longer. "Pucker up, sis!" He chortled, struggling to stay standing. He nearly fell once more as Diana glared darkly at him.

"Martin," She growled, her fists clenching as she attempted to banish the blush from her face.

Billy, noting her anger, sighed. "It's okay, Diana. You don't have t-" He was cut off as Diana suddenly tugged him down closer to her level, and covered his lips with her own.

There were many different reactions to what Diana did.

Billy was now a shade of red never seen on his species before, his eyes wide.

Martin's jaw had dropped, and he was no longer laughing, having been stunned into silence.

And, unknown to the three, they were completely visible to the now cheering guests at the Center Christmas Party.

At the sound of the cheering, laughs, and various whistles, Diana and Billy broke apart, twin looks of shock and embarrassment on their faces. They both looked away, smiling lightly as their faces turned slightly redder.

"Er, Billy," Diana looked away from her feet to the green alien hovering beside her. "I lied. You are that cute," She grinned, slowly walking away from Billy, who quickly followed after her, a dreamy, glazed look on his face. He paused, however, and flipped the lights off, shutting the door behind him. "Thanks, Martin!" He whispered before speeding after Diana and leaving a still stunned Martin in a now dark room.

...

There ya go! Review please!