'Remember, this is your last chance Poppy,' said her dad as she got out the car with her suitcase, 'if you get expelled from this school, thats it - no qualifications, no job, no life prospects. Your mother and I have signed the agreement saying that they can discipline you in whatever way they deem necessary to get you to do as you're told. You're eighteen years old, as are all the girls here, so they will treat you like an adult. So - behave, ok?'

'Whatever,' said Poppy, slamming the door. She turned and looked up at the imposing gothic building behind her. It was somewhere out in the country. Another school to waste her time in. She didn't care. She checked her reflection in her phone - her brown shoulder length hair looked good. Pity about the uniform, she thought as she looked down at herself and smoothed her skirt. A pleated tartan skirt, white ankle socks, white blouse, and blazer. Stuffy, ponsey school. Oh well, she'd show them. She shoved a stick of gum into her mouth and dragged her suitcase up the steps.

As she entered the reception area she could see other girls moving about up and down a big staircase, presumably going to and from lessons, or from dormitories. She'd never been to either an all girls school, or a boarding school before. She rang the bell and another student opened the door. 'Come in, come in, you must be Poppy,' she said cheerfully. 'I'm Maisy, the Head Girl. You're going to love it here.' She was told to leave her suitcase and follow Maisy to the Headteachers office. She pointed out a few landmarks as they walked down wood-panelled corridors but Poppy wasn't concentrating. The whole place seemed stuffy and old, and really quiet - all the girls were moving around in an orderly fashion, with neat uniform and hushed voices. This was not what she had expected.

Maisy walked up a set of stairs and Poppy couldn't help but look up her skirt, which was a lot shorter than Poppy's. Maisy was not wearing any panties - Poppy could quite clearly see her pussy and asshole winking at her as she climbed the stairs. That's odd she thought, as she felt her nipples harden. Maisy was about five foot seven she reckoned, a couple of inches taller than Poppy, and was wearing her blonde hair in plaited pigtails. Poppy could also tell that Maisy was athletic. She wasn't worried by the lesbianism that she assumed was rife in an all girls school, but hadn't been prepared for an upskirt of a cute pussy within a minute of walking in the building.

Maisy knocked on a door. 'Enter,' came a booming voice from inside. Inside the office was a middle-aged teacher wearing a gown and hat, sat behind a desk. He was slightly greying but nicely tanned, probably in his forties. 'I've brought the new girl to see you straight away Sir,' said Maisy, going to stand by the side of the desk. Poppy stood in the middle of the room, looking around at the bookshelves and portraits of, presumably old headteachers, and old-girls.

'Poppy, nice to meet you, I'm Mr Johnson, the headteacher here. Please stand upright when I'm talking to you and look this way.'

'What?' said Poppy, turning towards him, still chewing.

'We do not tolerate bad manners here Poppy, this is not a good first impression. You clearly haven't read our behaviour policy - there is no chewing gum allowed. Maisy the bin please.' Maisy brought her a bin and she reluctantly spat out her gum.

'Maisy - you're going to do a tour for Poppy later I believe, show her around and make her feel at home in her dorm room? I need to have a chat and initiate Poppy into some of our procedures and routines. Do a uniform check that sort of thing. I'm sure you remember your first day, mmm?' Maisy blushed and looked at the floor. 'Maisy is a very good girl now Poppy, a great example to follow. She is our Head Girl and helps us to keep order. Maisy, as a reward for collecting Poppy, and giving her a tour later you can choose a reward - what would you like?'

Poppy, still annoyed about the gum, was expecting some sort of house points, or a sticker, or maybe chocolate to be on offer but couldn't have been more surprised when Maisy said 'Can I wear Sir's favourite butt plug for the rest of the day?'

What kind of school was this? What the fuck was going on? 'A most excellent choice Maisy, that's the third time this week, you are behaving so well at the moment. Bend over the desk.' Maisy lay over the desk and pulled her skirt up to reveal her bare ass cheeks and ass hole. Mr Johnson opened a drawer and rummaged about and stood up holding a large pink butt plug and a bottle of lube. He walked around the desk, then knelt behind Maisy before licking her ass hole with his tongue for a few seconds. 'You're so well-trained now you barely need lube,' he said proudly, poking his index finger inside Maisy's ass hole up to the second knuckle. She moaned.

'What the fuck is going on?' Poppy shouted. 'I'll deal with you in a moment,' said Mr Johnson, taking his finger out of Maisy's butt and licking it. He squeezed a small amount of lube onto the buttplug, which looked about four inches long and quite thick at one end, and then eased it into Maisy's tiny brown butthole. Her sphincter gradually relaxed as Mr Johnson expertly drive the plug slowly up into her bottom. 'There, perfect,' said Mr Johnson, tapping it a couple of times with his hand. 'Off you go. I need about an hour with Poppy I would think, come back then would you?' Maisy stood up, smoothed her skirt and left the office, smiling.

Mr Johnson turned to Poppy. 'Ok young lady. You've seen how we do things here. We have fifty girls here and they behave. When they behave they get rewards that they choose, that they learn are good for them. Maisy was very naughty when she arrived and it took her about a month to realise that we were in charge and resistance was futile. The first thing we do with all new girls, is to check they have read our uniform standards and uniform policy, by doing a uniform check. After that we need to punish you for the chewing gum. Or would you prefer your punishment first?'