Yes

The period went on, and all 16 boys had cum at least once, most of them up her ass, some of them in her face. Erica's gaped out hole was a gooey, stretched-out wreck, and her face was barely poking through the mask of sperm that coated it. She looked like a total whore and the boys were giving her admiring looks. Frankly, many of them had never paid much attention to Erica, who was pretty but nowhere near the most beautiful girl in school. But now that she was an anal gangbang slut soaked in multiple blasts of cum, she was growing in esteem in their eyes. Even Mason, who had been so cruel, whispered, "Good job," to her after he blew his second load up her asshole and she cleaned him off.

But still, Erica had not cum. She was starting to despair when Mr. Carstairs blew his whistle loudly and longly.

"All right, boys, that's enough. I can see that our poor Erica is doing her best, but seems like none of you lot are quite man enough to give her the analgasm she so desperately needs. So, it's time for a real man to take care of her."

With that, he pulled out his 50-year-old cock and stroked himself as he approached the bent over girl. She moaned as he shoved himself up her hard and reached out for her hair, pulling her head back tightly as he bucked up inside of her rectum.

"Watch my technique, lads," he roared as he began to fuck her hard and rough, plowing into her ass with brutal strokes. Erica's hair felt like it was going to be ripped out of her scalp, and even though she had taken 16 cocks in her ass already, his thrusts felt extra hard.

"Keep rubbing your clitoris, girl!" he barked, and she did so frantically and desperately. The boys circled around and watched with interest as Mr. Carstairs demonstrated his sodomy technique. They elbowed each other and chortled as he gave Erica a vicious anal fucking, slamming himself into her, yanking her around by the hair.

"No way she's gonna cum like that," whispered Mason to a couple guys. "She's a sentimental drip, she won't go for this rough stuff."

But her moans were getting louder and louder, her body was moving with the teacher, and Mr. Carstairs looked around with triumphant eyes.

"Oh, I think she's about ready, boys. You watch, she's going to explode like a Ford Pinto."

And sure enough, as he destroyed her rectum with punishing motions of his cock, Erica began to cry out with a voice dripping with ecstasy.

"Ohhhhh yessssssss!" she screamed, her body spasming and writhing. Mr. Carstairs added his voice to hers as he shot his cum into her ruined ass, mixing with all the loads that had been blasted up there. Erica's eyes rolled up in her head, and after the teacher pulled out of her, she curled up on the mat, body still twitching from her very first anal orgasm.

The boys all clapped, even Mason. Then Mr. Carstairs cleaned his cock in her mouth and sent her on her way.