How will you punish these two miscreants?

With a morning on sore feet

You order the girls to follow you into your office and then take a seat facing them across your desk. They obey and stand straight with arms crossed behind their backs, their shapely bodies revealed to your gaze. The curly-haired lass is darker of complexion, the other paler, with a smattering of freckles across her nose, but both look not merely apprehensive, but downright terrified. You run your gaze over their slender forms, taking in full breasts, trim waists and lean thighs, knowing that the longer you make them wait, the more they will worry. Finally, when it looks like the chestnut-haired beauty is about to burst into tears, you speak.

"I want you each to take a strop from the cabinet behind you and strap your feet until your soles start to blister. I shall check on you shortly and if you've not finished, I'll cane your feet as well. Begin now."

Without waiting for the students' customary acknowledgements of your instructions, you open your laptop and check your emails. Sure enough, you have missives detailing the miscreants' malfeasances and you access their schedules to make sure their morning is free in case the punishment runs long. Having ascertained that your plan for their chastisement is feasible, you take the time to catch up on some paperwork and lecture planning, occasionally glancing up to watch the girls struggling to find a position in which they can thrash their feet effectively.

Initially, they both try standing on one leg, holding their other ankle in various ways, in front of them and behind their backs, but although they're soon in tears from the pain, none of the stances enables them to swing freely enough. The freckled girl, whose name you've discovered is Lorna, is the first to sit on the floor with her elbow under her armpit, whaling on her defenceless sole with a desperation to blister her skin before time is up. Her companion soon copies her and before long you have two sobbing youngsters sitting on your carpet, beating themselves viciously. It's a pleasant little show, but despite the distraction you still manage to get some work done.

"Show me," you order abruptly when you think enough time has elapsed. The students dutifully raise their legs in the air to display their feet for your inspection.