Disclaimer: I don't own Singin' in the Rain or any of its recognizable characters or storylines; I make no profit from this story.

A/N: I always thought Cosmo deserved a bigger part in the movie, so I decided to give him a story of his own. At the moment this is a one shot, but I'm thinking of making it into a chapter fic. Please read and review and let me know what you think! Much love x

Mr Nothing

Cosmo sighed as he pulled his car to the curb, listening to it chug sadly as the valet took the keys to drive it away. It had been one week since the release of Don Lockwood's latest picture Singin' in the Rain, also starring Kathy Seldon. The duo were still inseparable, as in love as they had been during the Duelling Cavalier and almost twice as popular as the Lockwood and Lamont duo. Cosmo of course was genuinely overjoyed for his friends, secretly expecting an engagement for them any time soon.

"What's the matter, Cos?" Don asked with genuine concern as Cosmo wandered into the hall, turning into the large room that R.F. always held his events in. A ballroom of sorts, Cosmo thought to himself, filled with the same people we always see, flaunting the same jokes and the same tricks, all discussing the picture and how they can get themselves into the next one.

"Nothing Don," Cosmo smiled and clapped him on the back, "say, where is Kathy? She isn't going to pop out of the cake is she?"

"No, nothing like that," Don laughed and fiddled with his cufflinks, an old habit he had picked up out of the nervousness for his first picture, "I think she's arriving with the chorus girls, some of her old friends wanted to catch up with her."

"Ah yes, the lovely ladies of the Coconut Grove," Cosmo put on a bit of an accent and twitched his fingers up close to his face, "dancing and singing their way into our hearts, or at lest they try to get into our hearts; they're definitely trying to get into our pictures!"

"Oh Cos, you crack me up," Don chuckled and watched three or four of the girls walk in with Kathy, quickly giving his oldest friend a nudge, "hey, why don't I get Kathy to set you up huh? I'm sure she'll know someone for ya, Cos!"

Cosmo smiled but shook his head at his friend, already anticipating the night's events and growing slightly tired. Perhaps if he stuck close enough to R.F he wouldn't have to waste any of his time talking to some pretty girl only interested in his connections, "thanks but no thanks Don, you know me, I'm set up all single and lonely so I can write me that symphony I've been meaning to pen."

"Well whatever you say, but the offer will stand," Don smiled and turned towards the group of girls, Kathy already eyeing Don as she chatted with her friends, obviously wanting to talk to him about the success of the picture so far, "and if you'll excuse me..."

"Sure, no worries," Cosmo said to the air in front of him as Don strolled away, giant Hollywood smile on his features and white suit almost shining in the bright light of the place. Sometimes Cosmo found it hard o be friends with Don, now that he was so big and flighty in the movie circles. But despite all the flashy suits and dames Don Lockwood was and always would be his oldest friend. After all, Cos thought to himself as he watched Don an Kathy smile at each other in the most private spot they could find amongst all the people that were streaming in, it's not every guy that takes his friends with him to the top!

"Well done on the picture," Cosmo turned to shake hands with R.F. accustomed to the mans sudden appearances and short speeches, "excellent work Cosmo, couldn't have done it without you!"

"Why thanks R.F., I did do it without you, but I guess next time I should run some things by your office," he smiled kindly and let go of the older man's hand, watching him laugh and laughing along with him, "seriously though it was a good project, can't wait for the next one!"

"Ah yes, well we already have something in the works," R.F. was already beginning to head off, stepping to and fro on the spot and extending his hand to an investor as they passed, "be in my office on Monday and I'll discuss it with you. Terrific work again!"

Cosmo smiled and took a step backwards, almost tripping over his own feet to avoid further collision with the shorter body he had inadvertently collided with, "I am so sor–"

"Oh no, really it was my fault," the young woman was reaching for her purse on the ground as Cosmo turned around, gaining only a glimpse of pale white skin and dark hair before she was rising to her feet, "I thought I could duck around you quickly but obviously..."

Her voice trailed off as she looked up and found him staring at her, a tall light haired man with a lovely grey suit, hands tucked into his pockets and smile hanging slightly lopsided on his face, "yes, obviously not. I apologise though, I should look where I'm going before I go there."

"Well that goes double for me I guess," the girl laughed and then seemed to remember herself, dark blue eyes showing the smile she wore as she took in their surroundings and gestured between them, "anyway, I'm sorry if I've kept you from something, I'll look where I'm going for the rest of the night."

"No really, it was my fault, walking backwards is killer on the heels anyway," Cosmo felt his own smile widen as he took in the girl before him, though quite beautiful for once he seemed faced with a girl that wasn't merely interested in a movie role. As he discovered his interest he turned up the charm, leaning towards her and grinning cheekily, "it was a pleasure running into you Ms...?"

"Well I'm Dana," she smiled enthusiastically at him and offered her hand, nodding at him to take it as he shuffled a step closer, "Dana Mercy."

"Well I'm certainly at yours," he smiled mischievously and leant further into her personal space, arm poised higher than her head against a nearby pillar of white marble, so that he had just enough support to lean down and wink at her, "mercy, I mean. And it was a genuine pleasure running into you Ms Mercy; literally."

She shook his hand and looked down and away from him, smiling uncomfortably at his dramatics. But with all of Don's success Cosmo determinedly kept up his position, aiming for a softer touch when she looked back towards him, cheerful again, "and who am I speaking to?"

"Oh, I'm Cosmo," he beamed at her and moved back a little, gesturing towards his chest with two thumbs, "I'm a friend of Don Lockwood's."

"My sister loves his pictures," Dana smiled politely and then seemed to remember herself again; Cosmo was becoming charmed by the habit, "but wait, Cosmo what? What's your last name?"

Cosmo leant his back against the pillar and turned his head towards her, matching her height with his slouch as he settled into his usual habits, "last name? Maybe I don't have one."

"Don't have-?" Dana moved from the pillar to look at him incredulously, smile still on her face, "but how can you not have one? That's impossible! Nobody would know what to call you."

"Impossible?" Cosmo gave a shocked expression and leapt away from the pillar, hand held dramatically to his heart, "Oh dear lord you have forsaken this girl. Impossible! Nothing is impossible," he grinned at her as she laughed and held one arm out to his side theatrically, "not where I work anyway. We take people off the street, send them back in time, teach monkeys how to talk, talkers how to dance, and then dancers how to act like monkeys!"

"Sounds wonderful," he listened to Dana laugh and smiled to himself, watching her place her hands behind her back and walk over to him, "and where is it you work Mr Nothing?"

"Well well, Mr Nothing, am I now?" he crossed his arms and smiled at her attitude, enjoying the way her enthusiasm seemed undeterred and revelling in a woman who could hold her own in a conversation, instead of simpering at him for some kind of favour. Her lips turned up slightly in the corners making her look as if she was always smiling, and Cosmo noticed the beauty of her as she turned to brush away a strand of hair. As she turned back to look at him Cosmo noticed that she was genuinely shy, and giving her a large grin, decided he definitely liked this broad.

"Well what else do you call a man whose last name is... nothing?"

"I suppose you have a point, Ms Mercy," she smiled shyly again as he spoke, and elegantly he gestured towards a wall which they walked to, "we sure could use someone like you over at Monumental Pictures. That's where I work you see; Mr Cosmo Nothing, head of the Music Department!"

"Why Mr Nothing that's wonderful!" Dana smiled and turned to lean against the wall, looking up at Cosmo through her eyelashes as he did the same, "and friends with Mr Lockwood too, one wonders how you'd ever have time to talk to someone like me."

"Oh, I think anybody would make time for you Ms Mercy," he smiled down at her and tucked his hands into the pockets of his suit pants, watching Don and Kathy as they spoke to some of the guys and gals from their new picture, looking back to Dana in what was becoming a genuine moment, and one of the best conversations he's had all day, "I certainly would."

"Well I'm glad," Dana smiled softly and Cosmo almost audibly gulped, suddenly nervous as the lights began to dim in the room around them, and Dana turned towards him as if to say something, "because you know, I–"

"Attention everybody," Cosmo bit the inside of his lip as Dana turned towards the front of the room, Don's voice ringing throughout the space as Kathy stood happily to his side. Of course his moment would be interrupted by Don, "Kathy and I wanted to say a big thank you to everyone for coming tonight, to celebrate the release of our newest picture Singin' in the Rain."

Cosmo stood with his arms crossed, leaning against the wall as the crowd applauded, smiling at Dana as she turned excitedly to look at him. The rest of the speech seemed lost to Cosmo as he watched the woman before him, dark hair perfectly curled against her head and fashioned in a tight up-do on the back of her head. Her slim figure was complimented by the pale blue dress she wore, and her pale skin seemed to glow with her excitement as she clapped along with the crowd during all their cues.

"Oh wasn't it wonderful!" Dana chimed excitedly at him as he applauded the final word and the lights rose back on, "one of the most wonderful musicals I've ever seen. And that Mr Lockwood seems awfully nice."

"Oh he's a card alright," Cosmo said quietly as he held back his frustration at their conversation being interrupted before, "but I am partial to the movie."

"Oh my, I just realised," Dana covered her mouth quickly and shook her head, holding back laughter at her own forgetfulness, "you must have done all the music! Why, Cosmo it was lovely."

Cosmo blushed and put a hand to the back of his neck, rubbing at his hair as he looked at the ground, "Why thank you, but Dana, what were you going to say before?"

"Before?" her smile fell from her face to be replaced by a look of concentration as her fingers gripped at her own chin as she tried to remember, "oh let me see, we were talking about something..."

"Dana!" Cosmo raised his eyes to the sky and smacked his head against the wall as Dana turned away from him again, this time to the calls of a young woman as she made her way across the room in a similar styled pink dress, "Dana the party is almost over, I think we should head home."

Dana turned to Cosmo and then back to the girl, making to protest but quieting down as the woman indicated the time, "Oh I guess you're right, I'll meet you outside."

"Alright," the woman looked pointedly at Cosmo and then back to Dana, disapproval spread all across her features, "I'll give you five minutes."

The woman wove her way back into the crowd, right past Don whom Cosmo turned away from and shadowed his face, trying not to be spotted and pulled away too early himself, "she certainly seemed stern."

"Oh it's not her fault," Dana smiled a bit sadly at Cosmo as he turned back to give her his full attention, Don seemingly looking for him in the other direction, "and I don't mind, I don't really enjoy these things usually."

"Why not?" Cosmo had never really met a girl at these parties that hadn't been there to enjoy herself or find her way into acting somehow, "are you opposed to a little bit of fun?"

"Why Mr Nothing, you aren't accusing me of being boring are you?" She held a hand to her heart as she looked at him, mock offended as he held his hands up in front of him in surrender, smiling, "I assure you I have fun. Just not really at these parties, you're probably the first gentleman who hasn't offered to get me into a movie or play... as a way of getting other things anyway."

"I wouldn't have dreamed of it," Cosmo smiled again, secretly congratulating himself on the fact he had gone with another tactic tonight, "I really am glad I met you Dana Mercy."

Dana beamed and then looked at her feet, raising her gaze to meet his and say something just as the woman from before appeared once again, calling her name, "Dana, we have to go, I've got the car waiting outside!"

"Sorry," she smiled sadly at Cosmo as he moved forward to take her hand, just missing her as she stepped back and turned to go, "it was wonderful meeting you. Mr Nothing."

"But I don't have your number," Cosmo said to her retreating figure, well aware that by now the noise of the departing crowd would have downed him out, "Miss Mercy."

"Ms Who?" Don Lockwood patted his best friend on the back, finally locating him against the back wall of the room, partly concealed by the shadow of a giant white marble pillar, "what are ya doin' Cos? I've barely seen you all night!"

"Nowhere Don, just listening to your speeches, very well timed as usual," Cosmo let out the sarcasm and sighed, looking at his friend as his arm left his shoulder to fix his cufflinks, "congrats on the movie though. You and Cathy are gonna be big! Bigger than Lina's ego ever was!"

"Well we hope so," Don laughed, Cosmo's earlier comment not phasing him in the slightest, "come on Cos, we have to go, Kathy is waiting for us with some of the chorus girls outside."

"Sure thing buddy," Cosmo let his friend guide him through the crowd with a hand on his shoulder, politely greeting both Kathy and the chorus girls as they arrived outside, all the while thinking about Dana Mercy.