The Next Day

"Welcome class, today is going to be an exciting day."

"Melody and Mariana are going to be giving their culminating presentations and we are having a special presentation from our local reproductive crisis officer. Melody, are you ready?"

Yes, Ms Jackson. Melody stood up and removed her skirt and panties. She put a thumb-drive into the computer that was hooked up to the projector.

"Can I have two male volunteers please?"

Anthony's hand shot up, he looked over and every male hand was up in the class.

Melody giggled, "Ok, ummm Anthony and Calvin."

She drizzled some lube into a pocket pussy she had brought.

"Calvin, do you mind leaning up against the desk with your penis out"

Calvin complied and was sporting a full hard cock.

"Anthony, please mount me from behind."

Anthony was also hard and walked up behind her and rubbed his cock against her pussy in order to move the fluids around and ensure it was sufficiently wet before sticking it inside her.

"Anthony and Calvin are going to help me with a live recreation of my experiment."

She placed the pocket pussy on Calvins cock and began to stroke with it.

"With semen extraction being one of societies biggest challenges right now. I decided to construct an experiment to see if the method of extraction affects the volume of semen produced." she had to speak up slightly since the sound of Anthony pounding her from behind had raised the background noise level significantly.

She maintained a steady rhythm with the pocket pussy as she continued. "I gathered a group of 5 test subjects from my neighborhood and extracted semen using three methods, sex with a real vagina, sex with a fake vagina and fellatio."

She changed slides on the presentation showing an image of each.

I waited a day between methods and two hours between sessions to keep my vagina and the semen production of the individuals consistent.

She changed the slide of her presentation. "This is my neighbor Frank, he was by far the all star of the experiment."

"The volume of semen he produced across all 3 methods was more than double the other test subjects."

Anthony turned to look at the projector screen and saw Melody's pussy overflowing with jizz. He grabbed her hips tightly and pushed his cock deep before it began to convulse and spew cum inside of her. He tapped her on the shoulder and withdrew his cock. There was a bucket on a scale below her that began to catch the jizz dripping from her pussy.

Thanks Anthony, please ensure you shake all the semen from your penis before returning to your seat.

She changed the slide to a graph. My findings were that when ejaculating into a vagina, on average 30% more semen was produced.

Calvin looked into the crowd of his classmates and noticed Charlotte sneakily fingering her pussy under the desk.

He looked up and she was staring straight at him. As if she knew, Melody increased the tempo of her strokes. His abs clenched as he locked eyes with Charlotte and began to empty his balls into the pocket pussy.

He tapped Melody on the shoulder as well to let her know he was done and then she expertly removed the pocket pussy and put it on a scale before it could drip any jizz.

"So from our in class experiment, Calvin produced a solid 4.3 ml of semen and Anthony, wow, a whole 6.7ml."

Everyone clapped as Melody returned to her seat.

"Thank you Melody, that was very insightful, thank you. I think you could expand this in the future to investigate the effect of anal sex. Class, as a result of Melody's research I recommend you follow her advice. Vaginas are more happy when they are full of semen. If anyone wins my sex raffle today, then I am going have to insist that you ejaculate inside of me"