That Would Defeat The Purpose.

"Miss Monolith can I ask you some questions first?" The professors hand gently rubs her lips focusing on her clitoris briefly each stroke, she moans and nods "How long ago was your last period?" she looks confused then mutters "U-um 2 weeks"

He nods "Good, girls remember that you are most fertile between 1 and 3 weeks after the beginning of your period. now Miss Monolith are you on birth control?" She moans and clutches at the top of the table as he leans down and kisses her exposed nipples waiting for her answer "Um no..." He nods rubbing his cock outside her pussy "good, we are showing the reproductive process after all so any protection would defeat the purpose, and if this cross does not mislead you are Christian?" Her dark skin is flushed and her eyes are wide with nervous fear as his cock drips pre-cum into her fertile hole "Yes sir." her voice is barely a whisper as she looks down at the rigid member probing her.

"Now girls, this sticky substance being released through my urethra is known as pre-cum, it lubricates a mans penis for entry, men usually don't produce very much unless they are extremely stimulated but it does contain sperm so do not let it touch your vagina if you are planning on practicing safe sex." The professor pushes his bare cock into the little Latina girls pussy, she throws back her head and moans, every eye in the classroom is fixated on her.

"Now see how since she was properly prepared I could enter her easily? If you have a dick like mine you should be careful not to press too hard against the cervix because it could damage it and cause a woman to become infertile." the young woman on the table is speechless with pleasure as her professor strokes in and out of her, rubbing her nipples and touching her hair as he continues to speak "now girls, because of the pre-cum we were discussing before pulling out is not an effective form of birth control, but there are a number of things that increase the risk of pregnancy like timing, cumming inside, staying inside of a after you cum, and making a woman orgasm before and after she gets semen inside of her"

He starts to pick up the pace "you can tell when a man is about to cum, he starts taking quicker breaths, his pace picks up, and if you can see his cock starts to swell and throb" The professor pulls the lovely curvy Latina students silky black hair as he pushes his cock deep into her and his balls pull close in and his seed fills her to the brim, some even leaking out while he remains inside of her. "Any questions?"