Bree was in the period before lunch for school that day. She was in senior year and was an attractive 18 year old woman. She could barely concentrate as she remembered what her and her boyfriend, Phil, had got up to a couple of days ago. She had finally given in to his desire for her to suck his cock out in public while topless. While she had been very nervous at the start, scared of someone seeing, she had to admit that she had enjoyed the middle part of it. Feeling the air on the bare skin on her breasts while Phil fucked her mouth had made her feel naughty, along with the thrill of the possibility of being caught. Her boyfriend ended the tryst by coming on her face, then by taking a photo of her half naked on her knees with his softening cock in her mouth and his cum all over her face with the backdrop of the trees and bushes. The next couple of days she had endured Phil's mates smirking at her and pointedly ogling her breasts while she blushed, knowing that her boyfriend must have shown them the photo he took.
As mad as she was at him for the photo, she had to admit that by herself, the idea of her boyfriend's mates having seen what she'd done turned her on. There was something sexy about the idea of them knowing she'd done something so slutty, at least while they weren't laughing at her in person about it.
In the middle of her thoughts however, another teacher came into the room and muttered something to her teacher, who frowned and said, "Bree, the headmaster wants to see you. Apparently there is a serious issues he wishes to discuss. He wants you to take your things with you as his talk with you might go into the lunch hour."
Bewildered, Bree packed her things while her friends sniggered at her. She had no idea what she could have done that the headmaster would want to talk to her. She was a good student and kept her head down, she hadn't even had a single detention since her slightly rebellious days as a 14 year old.
She walked into the admin building where the grumpy secretary pointed her down to the headmaster's office. Nervously she knocked and then opened the door.
"Ah Bree, yes, close the door behind you and sit down." The headmaster was sitting behind his desk eyeing her. She avoided his eyes and did as he said, trying not to feel too intimidated by his presence.
"Now, Bree, I'm sure you're wondering why I've called you in here?"
"Yes sir," she answered, looking up into his eyes for a few seconds before dropping them again.
"Well, it's true that we have had basically no trouble with you as a student before. However, I have seen something that concerns me greatly. You see, this morning a certain Phil's mobile phone was confiscated for the day when it became apparent he was showing another student something highly amusing that distracted his attention from the class."
Bree turned white, staring back up at the headmaster, knowing what he had seen.
"The teacher who confiscated the phone was rightly shocked at what he found and came to me. I believe this is the photo Phil was showing another student." The headmaster pulled a phone out of the draw and showed Bree the photo on it. Of course, there she was, topless with her boyfriend's cock in her mouth and his cum on her face.
"I must admit I too was greatly shocked at this photo. I would not expect this kind of compromising behaviour from you! Imagine if someone had seen this and recognised the uniform, you could have compromised your school's reputation! How do you explain yourself?!"
"I- er-" Bree stuttered. She was bright red at the headmaster and another teacher having seen her bare breasts and cum on her face.
"This is the worst breach of this school's standard of behaviour I have seen in years!"
"I'm sorry, sir- I didn't want him showing anyone the photo-"
"Oh really? Then why did you let him take it? What kind of girl lets a guy take this kind of picture and seriously believes that he won't show anyone? I think perhaps you wanted your boyfriend to show this to other boys, so you could get more attention?"
"What- no!"
"Oh really? I don't believe you!" Of course this statement was a lie, but the headmaster didn't care. He had an opportunity in his hands he intended to take advantage of. "This kind of atrocious behaviour requires serious punishment. Suspension or even expulsion, usually."
Bree was horrified. "No way!"
"And of course, the parents would be notified of the reason for suspension or expulsion, as would any other prospective schools."
Bree went white again. "Oh please, no, you can't do that to me... This is a once off, I promise it'll never happen again, I'll break up with my boyfriend if I have to, just don't tell my parents..."
The headmaster almost smiled. "Of course, I am willing to consider being lenient on you since you have proved yourself to be such a good student before now. There will still be consequences but if you prove yourself to be a good student again and worthy of this school, your parents need not know."
"Oh please, I'm willing to deal with the consequences, thank you so much sir."
"Well, let's see. We have enough time left in the lunch break to start your first punishment. I suggest a series of lunchtime detentions, once a week for the rest of the year until you graduate, to ensure your continuing good behaviour. Do you agree to this?"
"Yes sir, of course sir," said Bree, thinking she was getting away extremely lightly.
"Now, these aren't going to be the typical detentions of writing lines, your offence warrants something much more serious." Suddenly he stood up, and his face grew much more serious and dominating. "You have acted like a little slut and need to be punished. Get up and bend over the desk!"
Shocked, Bree stared up at him. "NOW, unless you want to get expelled?"
Quickly she got up and bent over the desk. "Face down with your arms on the desk." She obeyed, and heard him move around behind her.
"Well, I don't know how many of your boyfriend's mates have seen you with your tits out and cum on your face like a whore. But you know what kind of punishment that behaviour warrants? A spanking. Lift your skirt and pull your underwear down to your knees."
"Wha-"
"Do it NOW or I WILL expel you!"