My favourite programme is Casualty and my favourite musical is Grease. About a year ago, I had the idea of writing a Casualty story that was based on Grease. I've finally got around to doing something about it.

This story is based on the stage musical, not the film, so there are some differences in the plot, as well as various additional changes I've made so the story suits the ED. I haven't attempted to rewrite any of the songs (though some lines from the songs will be used in the dialogue) as I have no talent in this area and I think it might be against the rules anyway.

All the Grease characters are represented by someone in Casualty, though I've tried to stop the characters from going too OOC, so some of their lines are said by different Casualty characters. Most of the current and recent Casualty characters feature, so there are more characters and more storylines than in Grease.

The storylines are based on what happened in Grease, but they have been rewritten to suit the ED. Many of the storylines use actual Casualty plots from Series 28-31. They will all be happening at the same time, so I hope it won't be too confusing.

"I wish I was still on holiday," moaned Robyn. "It's only quarter-past twelve and it feels like I've been here for a whole year."

"There's the ED for you," said Rita. She gave Robyn a hug. "You'll be fine, sweetheart. It's always a bit of a shock when you come back from holiday. You'll soon get back into the swing of things."

Robyn knew she was right, but that wasn't going to make today any easier. "Who are you working with today?"

"I've been working with Ash," said Rita.

"How is he?" asked Robyn, remembering she wasn't the only one who was back at the ED following a break.

Unfortunately, Rita was too professional to reveal too much to the ED's biggest gossip, so she just said: "He's doing really well. It's great to have him back."

"I'm working with Cal," said Louise. "He's so annoying. He won't stop flirting." She smiled as though the idea wasn't quite as repugnant as she was pretending.

Robyn was sure it wasn't. "You're so lucky. Cal never tries anything like that with me."

Rita looked sympathetic and gave her a pat on the shoulder. "Never mind, darling. Your time will come. I just know it." She smiled. "As for Caleb Knight, that man seriously needs a girlfriend."

"I heard he had two last night," said Robyn.

"A girlfriend he's going to stick to," said Rita. "A girl who's going to make him feel that one night isn't nearly enough."

Robyn sighed. The one thing she could be completely sure of was that that girl wasn't going to be her.

"Now, I wonder where he'd find a girl like that," said Louise, smiling to herself.

"Hey, you two!" They looked up to see Zoe approaching, swinging her bottom from side to side in a way that even Dylan had commented on – and he never noticed anything like that. "Mind if I join you?"

Robyn moved closer to Rita to give Zoe a bit more space.

Zoe lit a cigarette and looked around. "Where are the guys?"

Robyn knew she was looking for one guy in particular.

Max entered the staff room to find Ethan, Lofty, Iain and Jez draped all over the sofa. From the look of it, at least some of them were feeling as hungover as he was They'd probably all been in the same place, but Max had no idea where that was. He couldn't remember a thing and he'd been pleasantly surprised to wake up in his own bed rather than a skip.

"Hey, Max," said Lofty. "Are you okay? I've hardly seen you for weeks. Have you even been home?"

"He's probably been with Zoe," said Jez. "And who can blame him?"

Max ignored Jez and instead wondered how to answer Lofty. The trouble with these guys was that they never missed a thing. "I've been doing some extra shifts."

Lofty looked surprised. "Extra shifts?" he said rather doubtfully.

Iain shook his head. "We'd have seen you if you were doing extra shifts."

Max looked at the floor. "I was doing them at St James'."

"St James'?" exclaimed Iain in disbelief. "As in our rivals'?"

"I wouldn't quite say they were our rivals, Iain," said Ethan.

Lofty was looking confused, but then suddenly, he smiled. "Are you saving up for something, Max?"

"I've been saving up for a car, if you must know," said Max, still annoyed by Iain's comment. "I hate it that Zoe has to chauffeur me everywhere all the time. Sometimes I want to treat her, you know?"

"Oh, what kind of car?" asked Ethan, who wasn't that interested in cars at all, but he was always polite enough to pretend.

Max shrugged. "I don't know yet, do I? But I've chosen a name already. Zoe Lightning."

"Great idea!" said Jez. "I mean, everyone knows Zoe's fast…"

"I'm surprised a kid like you even knows that expression," said Iain.

Jez smiled at him cheekily. "I learn all kinds of old-fashioned phrases from working with an old man like you."

"You laugh all you want," said Max. "But you won't find it as funny when I've got a better car than you." He knew he wouldn't have as good a car as Cal – no-one had as good a car as Cal – but Ethan had quite a basic car for a doctor and he didn't think Dylan or Sebastian had a car at all.

Though as long as Zoe liked the car – that was all that really mattered.

"Got a text!" said Iain happily, pulling his phone out of his pocket and no doubt hoping it was one of those girls he probably couldn't remember from last night.

"Who's it from?" said Jez. "Anyone hot?"

Iain groaned and flung his phone down on the table. "Dixie again. I wish she'd just leave me alone. I know I'm not Jeff. I'll never be Jeff. But I am a decent paramedic and I really wish she'd realise that."

Lofty looked sympathetic. "It must be really difficult. Dixie and Jeff had been working together for years so she was used to the way she does things – and she must really miss him. But I'm sure things will get easier once you're used to each other. I used to think it was impossible for me to work with Dylan, but now we get on really well."

"I'll murder her if she's not careful!" said Iain, ignoring Lofty completely. "It's all 'do this, Iain; do that, Iain; no, DON'T do that, Iain! It's driving me mad."

Jez grinned. "Maybe she fancies you, mate. That's why she asked to work with you!"

"I really don't think it's that," said Iain, who knew he wasn't Dixie's type.

"Perhaps, if you talked to her…" ventured Ethan carefully.

Iain's jaw was set. "Damned right I'll talk to her! Just because she's more experienced than me, it doesn't mean I have to take any of her crap. I don't take crap from anyone! If she even thinks about nagging me one more time…"

The staff room door swung open. "Iain?" said Dixie.

A look of horror came to Iain's face and he turned his head slowly towards the door. "Hey, Dix. Um, everything okay?"

"For now," said Dixie. "I just wanted to make sure you knew you've only got fifteen minutes left of your lunchbreak and you'll need to be back at least five minutes early. Ten would be even better. Okay?"

"Um, yes, Dixie," mumbled Iain.

"And you'll need to clean that mayonnaise stain off your jacket."

"Okay, Dix," said Iain.

"And speak up: you're not going to be able to reassure the patients if they can't hear what you're saying," said Dixie.

"Yes, Dix," said Iain, his voice clearer now but still subdued and respectful.

"Good," said Dixie. "I'll leave you boys to it." She shut the door behind her.

Jez smirked. "I'm glad she didn't start nagging you, Iain. You'd have given her a right telling-off if she had, wouldn't you?"

"Shut up!" said Iain, and went to clean the mayonnaise off his jacket.

Honey was delighted to find all her friends together. She smiled encouragingly at the girl by her side. "Don't worry, Alicia. They're all really nice and they'll love you forever when we tell them about the cake you made for us."

Alicia smiled a bit uncertainly. Honey thought she was very pretty, but she could do with a few more sparkles. She was probably a bit old for a pink dip-dye and her hair could do with a bit more shape. But Honey thoroughly approved of the pink stethoscope and thought all the doctors should have one. Pink would go beautifully with Ethan's blond hair.

"Hey!" called out Honey. "This is Dr Alicia Munroe, the new F2. This is Zoe – she's a consultant so you'd better call her Dr Hanna when you're working. This is Rita, who's the big boss nurse; this is Louise, who works on reception, and didn't you say you'd met Robyn?"

"Yeah, I gave you a 4-0 for your sutures," said Robyn.

"I remember. Hey, Robyn." Alicia smiled shyly at the others. "It's nice to meet you." She held out the cake tin. "I, um, made some cake."

"And I've got some plates and a knife from the shop," said Honey.

"Cake?" squealed Robyn, then she sighed. "I would love some, Alicia, but I'm on a diet."

"I'm on a diet too," said Zoe. She showed Alicia her lunchbox. "Nothing but leaves." She'd already eaten the curly-wurly Max had hidden at the bottom.

"But you look lovely!" said Alicia. "You all look amazing. None of you need to be on a diet."

"I'm not on a diet," said Rita. "I'd love to have some cake. Thanks, Alicia."

"I suppose I could force myself," said Louise.

Alicia cut slices for Honey, Rita, Louise and herself and sat on the ground beside the bench.

Honey perched on the arm of the bench and grabbed something from Rita's lap. "Rita, I love your new glasses!"

"Reading glasses, are they?" said Louise. "You must be getting old, Rita."

Rita shook her head. "They're just sunglasses, Louise. Iain saw me on the way in and told me they made me look more intelligent. I wasn't sure how to take that." She put them on to show the others.

"They don't make you look more intelligent," said Louise. "We can still see your face."

"Thank you, Louise. Very kind of you."

Honey tried to smooth things over. "I love the sparkles."

"They're diamonds," said Rita.

Louise looked at them critically. "If they're real diamonds then I'm madly in love with Cal."

"You are madly in love with Cal," said Zoe.

"I'm not!" said Louise. "I just think he's got a nice bum, okay?"

Alicia knelt up so she could see Rita's sunglasses better. "They're beautiful, Rita. You look gorgeous in them. But you look gorgeous without them too."

Rita patted her on the shoulder. "Aw. Thanks, Alicia."

Robyn turned to smile at the new doctor. "So, what do you think of the ED so far, Alicia?"

"Oh, I love it!" said Alicia enthusiastically. "I'm so glad I got to come here. I was going to go to a private hospital, but the clinical lead didn't like my shoes."

Robyn looked down at Alicia's shoes. "They look great to me."

"All the doctors wear suits there, even the foundation doctors," said Alicia. "With skirts for the ladies. The clinical lead thought the patients would be able to see up my skirt from the reflection from my shoes."

Honey looked at them with interest. "Where did you get them? I'd like some shoes like that."

"I don't think Ethan would though," said Zoe.

Honey was forced to admit she had a point. Ethan was so sweet and innocent. When he'd seen her dancing in the strip club, he'd looked ready to faint with horror. He probably would faint if he could see up her skirt.

Though probably only with horror, unfortunately. Not with desire.