Teaching me a lesson

My maths professor, a real bitch,  
Known to be tough and stern.
To pass her geometry class,
Her respect you had to earn.  
 
A mature lady, quite old school.
She didn’t take any shit.
And she looked so tough and fierce,
That she could crush you with her tits.
 
She pushed all her students hard,
She was unrelenting, precise and tough.
It was rumoured she would punish those,
Who didn’t know their stuff.
 
One day I got a note from her,
And I felt so sick and pale.  
I was summoned to explain why,
That I was about to fail.
 
That night after all my classes,
I ventured into her abode.
A large no-nonsense office,
Where she was set to explode.
 
There was another student.
Standing meekly there.
A young lady from another class.
Petite with long blond hair.
 
The teacher glared at us severely.
Then locked her office door.
We stammered our apologies.
But that did not sway her mood at all.
 
She berated us for several minutes,
Although it felt like an hour.
She threatened that she could fail us both,
We were completely in her power.
 
She looked at me with contempt,
A seething, angry glance.
She ordered me bend right over,
And strip down to my underpants.
 
She quickly produced a leather strap,
Gave my bottom a short sharp smack.
I grimaced from the shock of it,
And she followed with another whack.
 
She turned to the young lady.
And ordered her just the same.
She delivered two stinging blows,
And she turned bright red with shame.
 
She tied our hands behind our backs,
Then she removed her tailored suit.
It was clear the teacher was in charge,
And our protests rendered mute.
 
She removed our remaining underwear,
And I chanced a backward glance.
I saw the teacher’s lust-filled eyes.  
She was relishing this dance.  
 
She wore a perverse corset,
Clearly made for debauchery.  
I could clearly see her shaven quim,  
And huge breasts spilling free.  
 
She harshly smacked us both,
But through the pain I was surprised.
My cock was thick and hard,
And grown to enormous size.
 
The teacher noticed my erection,
“Impressive!” Was what she said.
“Time now to change the rules,
You can pleasure me instead”.
 
The teacher sat upon the desk,
Her knees held open wide,  
The young lady directed to her tits,
And my face between her thighs.
 
I could hear all kinds noises,
Wet salacious tones.
Two women passionately engaged,
While I was down below.
 
The teacher abruptly stopped me,
“The girl will show you how it’s done,
Come and lick my pussy, she said.  
Taste me, lick me, til I come”.
 
She went down on our teacher,
Her lovely buttocks lifted high,
I caught a glimpse of hot wet quim,
Glistening between her thighs.
 
“What are you waiting for?” The teacher snapped.
“Are you fucking blind?”
“Can’t you see she’s begging for it?”
“Fuck her from behind!”
 
Her thighs parted slightly,
As I eased my cock inside.
She was so creamy wet,
Hot for a raunchy ride.

Pure debauchery,
Roughly two hours slowly passed,
We tried every permutation,
Before our endurance was surpassed.
 
I turned to the young woman
I said breathlessly: “our teacher is a freak”.
She winked at me then replied,
“That’s why I visit her every week”.