Celia clamped her teeth hard on the cane, hoping it would be left there for at least a while. It gave her something to bite on. Like in the old days before anaesthetics... She had already placed her hands together on her belly, knowing mistress would want to place the cuffs on her.<br/><br/>She paled as Mistress brought out the nipple clamps.<em>Oh god, no, not those, please not....AHHHH!</em>"MMMPH!" She moaned as ther first nipple was teased to full erection and the clamp applied.<em>Noooo, that's too gentle, It doesn't hurt like that, make it tighterrrrAHHHH! God that's nice!</em>A louder moan escaped her as Mistress sucked the other nipple, teasing it with her teeth. The clamp went on and Celia tensed. "MMMMNGGGHHH!!!!" Her teeth bit into the leather, leaving slight marks as the clamps tightened.<br/><br/>Mistress put a hand on the cane and Celia grudgingly released it. At the blows fell on her thighs and cunt, she twitched and yelped. The pain was enormous and she loved it. But she realised something else. It was humiliating to have her hair tied like that, but even more humiliating to have admitted to Mistress that she couldn't bare to be taken home unpunished. The fact that this would have been a worse punishment than any amount of pain was the worst thing she had ever had to admit to anyone, least of all herself.<br/><br/>And, she realised, she loved the feeling.<br/><br/>Mistress stopped spanking her suddenly. Celia's whimpers died away as Mistress moved to the door.<br/><br/>She turned her head as the girl came in. "Oh crap. Amanda? You really need to do better in class. I mean, your last Maths assignment... It was terrible!" She couldn't help it. The submissive had gone and the teacher was back in charge. "Leibnitz notation is dy/dx, not Newtonian, for starters. I do try to help you but if you make no effort to read the text properly..." She paused as Misstress and Amanda both looked at her in a really odd way.<em>You realise they don't see a maths teacher, they see a silly whore who's tied to a desk and being beaten?</em>