The same as she gave

Since Erin gave two sixers with, you assume, the college cane on the bare bottoms of her charges, a dozen strokes to her own rounded rump would seem appropriate. She apparently agrees and even gives a slight sigh of relief, as though she had expected worse. She bares her bottom and bends over the table while you take down the cane and prepare to start flogging her unblemished backside.

Erin's bum is neither particularly pale nor strikingly dark, neither notably large nor remarkably thin, but it is exceedingly attractive. You tap the rod across the crown of her cheeks to let her know you're ready to commence and she begs prettily for the first stroke.

The sound of implement on flesh is quite subdued, although the blow was firm and raises a deep red stripe. The brunette gasps, but doesn't flinch, thanking you and asking for the next with perfect decorum. It takes three more to reach the top of her thighs and then you put another two just above the first. At the half-way point, Erin is breathing heavily, but tears still haven't fallen, so you resolve to strike somewhat harder for the second half dozen.

You decide to deviate from your usual technique and instead of perfectly parallel stripes, lay the seventh on at a modest angle between the first and second, creating the start of a zigzag pattern. The teaching assistant groans softly at this, telling you it's having the desired effect. There are four more gaps to fill and by the time you've done so, a pretty picture of swollen ridges has been painted onto her rear, but you still have one stroke to go.

"Eleven, thank-you, Professor," she sniffles, "please may I be permitted to receive another."

You run the tip of the rod over her throbbing weals. They look like one continuous, jagged welt running back and forth across her buttocks, which gives you an idea. For the last blow, you walk over to her other side and strike diagonally, joining the open ends of the design and crossing all but the outer two lines with the hardest impact yet. Now, Erin whines pitifully and tears finally start to flow, but she thanks you one final time and sounds completely sincere when she describes her gratitude for the correction she has received.

A glance at the time tells you that your next meeting is fast approaching, so you forego sexual gratification in favour of a monetary reward and the satisfaction of seeing a young woman with tears running down her cheeks smoothing her skirt back into position and promising to bring her students up to scratch by next week.