Gang bred by the students

You are absolutely stunned that your teacher just offered the students the chance to fuck you bare when you are fertile, but you are distracted as Marty pushes into you. “Oh God, you are so tight,” he growls.

“So, students, observe,” you look around to see several students already engaged in their practical exercise. “As our resident human is fertile, she will have an egg partway down her fallopian tube. The semen that Marty will soon release into her will swim up through her cervix and into her womb, meeting the part down the fallopian tube to fertilise the egg.”

You moaned at her words as Marty leaned down to your breasts to suck on one nipple. You had to admit, Marty was sexy, and you wouldn’t have minded fucking him as part of a practical class, but the idea of being gangbanged by all the men in the class for their ‘practical’ lesson was not something you were looking forward to.

The room smelt of sex as the teacher continued, “So, typical gestation times vary from species to species; humans have nine months of gestation, tigers have much shorter gestation periods. In an interspecies pregnancy, it is somewhere in between.”

Marty’s cock was pushing against your cervix with each thrust, and you wrapped your arms around him as you shuddered in orgasm. “I’m going to cum,” he whispered in your ear. “If you want me to pull out?”

You shook your head, “If everyone is going to cum in me, it won’t matter,” you panted. You couldn’t believe how quickly you had become submissive. Blowing and fucking one of your teachers and now being used by your class to practice breeding.

Marty starts to shake, and you feel his cock pulse. He pushed deeply into you, and you felt his cock spewing into your fertile cunt. You orgasm again and whimper in pleasure while he fills you with cum.

“Excellent, Marty,” the jackal teacher said. “Now, this module is supposed to be five lessons, so everyone should get plenty of practice.”

You looked up at her as Marty pulled out of you, “Five lessons?” you asked.

A gorilla anthro approaches you and rolls you over onto your hands and knees. Without any further foreplay, he pushes into you, and you shudder. A moment later, there is a double-headed lizard cock on your face.

“Yes, five lessons, three this week and two more next week. Our double on Wednesday should be most beneficial for everyone,” she was speaking as if it was a matter of fact as the lizard pushed both his cook cocks into your mouth.

“So, Miss,” you hear a female voice say, “You said you want us to get practical experience, so would that mean that fertile students will be available for practice?”

“Yes, and currently, only our resident human is fertile, so it makes sense. We will also have an assignment related to this work, so meet up with your class partner or ask the human to help.” You moan and cum again at her suggestion and wonder how many of the students will be asking to fuck you as their practical assignment.