I clap my hands together to get the classes attention. "Let's get on with it shall we? Oh Jason? Please come over to my right side and Ms. Marny to my left." Jason stops doing his two finger naked pushups on the floor and waddles his massive body next me/Mr. Bretman. For the first time he seems to notice the changes to Marny and tries to maintain his composure while Marny is barely hanging on. "What did you do to her? Marny didn't look like that before!"
"Of course not, Jason. She went through puberty." Her body quakes as she grows again, her breasts and curvy legs growing even juicier than before. Jason notices and his penis springs to life as it engorges. A girl in the back raises her hand. "Mr. Bretman why is his penis doing that? It was already so big before."
"He is being aroused by the possibility of mating with Marny. The penis will become erect and elongate to better provide a proper entry angle into the vagina and to provide a more pleasurable experience for the female, in this case Marny." Jason and Marny are both heaving in place completely overrun with hormones and pheromones and are only being held back by my power over the both of them. "This is what's known as an 'erection'. Females also grow with arousal. Female breasts and lips will slightly grow and the vagina will engorge, filling with blood and puffing, becoming tighter so as to encourage the male to release his sperm into her. But you can't see hers as well as his." I look over my class and see the erections of the strapping young males in the class, including my own, unknowingly at full attention while they watch my demonstration. Some are even taking notes. "Now class, the individual sperms will travel together in fluid as semen from Jason's testicles to his penis head which will then ejaculate it. The semen will travel to the inside of Marny's vagina to her uterus where they will fertilize a waiting egg from her ovaries. To show you how this process naturally looks like, they will not be using a condom." Marny and Jason both show shock on their straining blushed faces.
"No condom? But sir, I don't want to be pregnant. We're teenagers."
"Yes, Mr. Bretman. I don't even want to..." Jason looks over her trembling body and takes a deep smell of her essence radiating off of her sweaty body. "...fuck. I mean, damn. I just... want to ... tear you apart!" His eyes lock onto hers with an animal verocity.
"But Jason..." she tries to reason with him, but his animal instinct is taking over. A stud like that needs to breed and he found his target. She looks into his wild eyes and the pure desire building up inside pours all over her willpower. I look over my handiwork with prideas and chuckle; the sheer amount of hormones I threw at these guys is about to make them explode. But they are locked in place until I give the word.
I move out of the way and stand near the door. "Jason walk over to the end of my desk closest to you. Marny climb onto my desk with your butt on the edge with your legs facing Jason." I wish Mr. Bretman's to be indestructible so it won't break under the next lesson. They get into position. I can see Jason's testicle inflating and veins lining their perfect bodies as they strain to hold on. "Marny, bend your knees and spread your legs so Jason can see inside you." She does and her heat goes right into his nose. The boy is panting. "Sir?"
"Yes Jason?" The boy can barely speak.
"Can I do it now?" I nod and he grabs onto Marny's wide hips and slams himself into her. They both scream out at the sweet pain of finally being allowed to move. The strong entry of his massive member hurts Marny and she whinpers in the verge of tears. Jas on senses her pain and he lifts her up to him by her waist and plants light kisses on her lips to ease her. "Class notice how she was in pain? When the entry into the vagina is too rough it can damage the hymen, causing the woman temporary pain and maybe bleeding. It will recover but if careful it doesn't have to." I gesture to the hulking Jason delicately tending to his hurt mate. "A proper lover will always make sure their partner is comfortable before proceeding further." Marny slowly but surely starts to kiss Jason back and wraps her arms and legs around him. "See class? Now she is recovered and they can continue." Soon their hips start rocking back and forth and they stop kissing so Jason can go to work on her pussy. At first he slowly comes out and in but then picks up speed once Marny gets comfortable. The slapping of skin and their combined moans get louder and louder as Jason slams deeper into her. The hard pumps make her breasts bounce and slap against each other. I ignore the fact that I'm my best friend fuck someone and enjoy the show. Watching porn in real life is way better better on my computer. The rest of the class, unbothered by the explicit performance, watches on as if it was a nature documentary. But for Marny and Jason, this was real. All the way down to Jason's powerful climax. He cums so hard in her that it drips down the side of the desk as they both scream out. The class applauses as his firehose finishes blasting her womb. They catch their breath as we applaud them on a job well done. "Very well done, you two. Extra credit for you both. That is how you do it class, at the basic level. Of course there are other styles and techniques two could use but those were the basics." Still dazed by what just happened, Jason and Marny get off the table, with Jason gently carrying her down. "Marny is definitely pregnant now."
Jason and Marny both shout "What?!" As the bell rings and the rest of the students get up to leave. I quickly wish for everyone but Marny and Jason to shrink back to normal and to be normally dressed. Marny and Jason instead get redressed in their new massive and newly pregnant bodies. I stay inside Mr. Bretman's body for a little while longer.
"What do you mean I'm pregnant?"
"Simple, Ms. Robbins. You had unprotected sex with Jason and now you are most likely pregnant."
"But we didn't mean to..."
"Whats done is done, children. Now, I best be heading off. I have an appointment outside of school and I must be leaving. Good day" and I have Mr. Bretman walk out the door. I release the teacher's mind and come back into my own body after quickly making Bretman okay with what just went down. I get up from my desk and start packing up my books to go. Jason grabs my shoulder. "Ow dude, watch the strength."
"Sorry Ty. But did you just see what Bretman had us do?"
"Yeah the whole class did. At least you're not a virgin anymore."
"Come on Ty. This is serious. What are we gon to do? Marny's pregnant for sure. You heard Bretman."
I fool around with my pal. "Okay okay. I know. But there's nothing you can do. You didn't even wear a condom."
"Bretman wouldn't let him, Ty. We had no choice." I look down at Marny's breasts with my own eyes. The big hoodie from before got bigger but her giant braless melons are still pulling it tight across her chest, outlining her massive swell. I wonder what those will look like in a few months
"No Marny. He asked you guys if you wanted to use protection but you both denied it. You said no." I pick up my back pack and move past them to the door. "I gotta head to my next class. Let me know when the baby shower is."
I leave the freaked out new parents behind in the classroom as I enter the bussling hallway, looking for a new plaything to try.