After some hesitation

Mr. Carter meets your gaze with a simple nod. So you turn back to the sisters who are looking over the fine print.

"Does it really have to be on out bare bums?" Grace asks with a pout.

"That's what the book says." You reply, "but don't forget, this compromise means Ms. Naylor and your parents will not be involved." The look exchanged between the sisters is all you need to know that they'll accept your offer. You let them talk it over as you take the book open to the relevant paragraph to Mr. Carter.

"It says here that the aggrieved party may administer some or all of the punishment, Mr. Carter." You tell him as he reads the passage. "Would you be willing to administer the punishment to one of the sisters?" The fact that he looks a little surprised and has to consider your offer puts your mind at ease. You didn't think he was a sadist who got off on inflicting pain, but after a moment of hesitation he nods his head silently. Of course if he had been that kind of man, he would not have brought these two redheads to you in the first place. In spite of the anger and lack of judgement he showed by having the sisters strip off their shirts, he didn't seem like a vindictive man.

"Ladies?" You turn your attention to the pair sitting on the couch. "Do we have a deal, or should I call Ms. Naylor?"

"No. We'll do it." Once again Grace speaks for both the Mathewson sisters, but holding hands they get up together and walk nervously to the desk.

"OK, girls. I need your shorts and underwear down to your knees and then put your elbows on the desk." Turning to Mr. Carter, "Will you take the one on the left?" He nods again and flexes his hands as he waits. That man is in remarkable shape for a 50 year old teacher, you've known marines who are not that well toned. "Not too hard, Mr. Carter." You warn him quietly, "follow my lead."

"Yes, Sir." The look he gives you this time lacks the suspicion you remember when you first asked him to put the account in writing.

"We'll administer these in groups of four." You announce to the group as if you have administered paddlings every day. "I'll go first." Turning to the desk you see that the younger of the two sisters is on the right. The polished wood looks even darker when placed against the young woman's pale buttocks.

The first four swings are solid blows, not nearly as hard as you could make them, but hard enough to make Sally squeal with each one. By the time you hand the paddle to Mr. Carter you see Grace look in dismay at her sniffling sister.

To his credit, Mr. Carter matches the level of impact pretty well and like her sister Grace gives out little yelps with each blow. Neither of the two student's asses are pale any longer, both have cherry red circles on their round cheeks.

For round two you hit just a little harder, and by the third of the flour blows Sally is begging you to stop. One final blow lands on her pretty little tush and you let her rub her backside as you hand the paddle back to Mr. Carter. As you listen to Grace, whimper with each blow you watch Sally rubbing the sting out as best she could and wonder what it would feel like to rub your rough hands over those glowing buttocks. Stepping back just a little, you adjust the bulge in your pants as subtly as you can. The last thing you need is for Mr. Carter, or one of the sisters to realize that the sight of these two ladies having their bare asses tanned was beginning to excite you.

Once he finishes, Mr. Carter hands the paddle back to you, but before you can step back to Sally's side, Grace calls out through clenched teeth.

"Wait, I'll take hers." It takes you a moment to realize what she's saying. "I talked her into this, Sir. I'll take her last four."