Heavily inspired by this pic: https://derpibooru.org/2085201?q=imminent+spanking
 

 
He supposed this was what he should’ve expected. A writer in a small town with an open school, no doubt eventually ponies would come his way for ‘tutoring’ for their writing class. Midday Sun was hardly a big time writer-he wrote Penny Dreadfuls, but that was good enough for a few desperate students who needed help with a paper.
 
“So…you didn’t take any of my advice?”
 
Lighthoof twiddled her fingers as she shyly looked at him. “Well, it’s just that…writing is just SO hard and so tedious.”
 
“It’s a 1-page paper on what you’ve learned from your best friend…” Midday couldn’t help but roll his eyes as he watched her squirm in place. “I don’t know what more I can do for you, Lighthoof.”
 
“I mean…you could write it for me?”
 
“…On YOUR best friend and what her friendship has taught you?”
 
“…Yes?” Lighthoof gave Midday the biggest smile she could muster, but all it did was make Midday furious. He took a deep breath and pulled his chair out from behind his desk.
 
“Lighthoof, I’m going to show you a technique my mentor showed me for slacking off on your writing.” Midday set the chair down as Lighthoof looked on in confusion. He took a seat, then grabbed his fellow Earth Pony and pulled her across his lap with a small ‘oof’.
 
“W-wait! A-are you going to spank me?!” Something sounded off to Midday about Lighthoof’s tone, but he couldn’t put his finger.
 
“That’s right.” Midday raised up her skirt and lowered her white, cotton panties down to her knees. “A good, sound spanking always help lazy writers.”
 
“Oh no~”
 
Midday’s palm began to quickly pepper the mare’s bottom, each spank slowly turning her flank from its soft blue tint to a much warmer pink. She kicked and bucked about, but Midday noticed quickly that her actions didn’t match her voice. The young lady was giving a few soft moans mixed in her groans.
 
The tutor raised an eyebrow, his hand starting to slow down, but he struck harder. He was quickly starting to notice that the young lady was fidgeting over his knees, biting her lower lip.
 
“My my, you naughty filly.” Midday gave another smack, “you’re not enjoying this, are you?”
 
“…No.”
 
“Are you telling lies?”
 
He could see her blushing face as she gave a bashful smile.