Day 6.1 – Sex Ed: Contraceptives Pt 2 W/ Natalie

I rolled my eyes as they rock paper scissors who went next. Nora and Mary were furious when they were excluded since they went first last time. Natalie threw a rock to beat Charlotte’s scissors and smiled as Charlotte hissed and went back to her seat. This was ridiculous, I thought.

Natalie came up. She parted her red hair, straightened her skirt and smiled.

“Ok, well since you all know about condoms, I’ll have to demonstrate spermicide next.”

I pulled out a bottle of spermicide.

“Spermicide isn’t 100 percent effective against unwanted pregnancies," I said. I went over to Natalie and lifted her. Natalie made a tiny yelp as I positioned her on the desk the same way I had Mrs. Kelly. “We have to put spermicide deep inside near your cervix.”

I unscrewed the bottle and took out the applicator. Natalie was nervous with anticipation at this point as I came to her and spread her legs. I hiked up her skirt and removed her cotton pink panties. They had a stain of wetness on them.

Natalie quivered, her lips, her thighs, her body shaking as I caressed her bare thighs and towards her cunt. I screwed the applicator onto the bottle and squeezed out towards 1 marking of the applicator. I recapped the tube.

I placed a couple of fingers on Natalie’s cunt, and she whimpered a bit in excitement. I prodded a few fingers in, her cunt wetting my fingers and then inserted the applicator down towards her and plunged in the spermicide deep near her cervix.

I withdrew it, and Natalie let out a small moan.

“So there that’s it. That’s how you apply the spermicide. I’ll give you guys all a bottle so you can try on yourself. “

“Mr. Smith,” Natalie said bitterly. “Shouldn’t you test if it’s effective?”

Natalie was biting her lips at this point, her legs were spread even wider than before, and her breathing was rapid.

“How are we going to do that, Natalie?” I asked coyly.

“You have to shoot some sperm in there, and we’ll see if I get pregnant or not,” Natalie said again with a bit of spoiled brattiness.

“That’s a wonderful idea, Natalie,” I said.

My cock was raging at this point, looking at her firey well trim bush and her wet cunt. I positioned myself on an angle so the class could see while I prodded near Natalie’s cunt.

Natalie bit her lip as I teased her with it, my cock running on her labia and cunt but not going in.

“Mr. Smith, it’s not going to work if you don’t put it deep inside me,” Natalie said.

I nodded. I gently poked at her, her lips parting and resisting, her tight cunt slowly enveloped my dick. Natalie bent her head back and closed her eyes, a moan coming out. I pushed her head back forward.

“Natalie, please pay attention,” I said. Her eyes widened as she watched the huge snake disappear into her like a fantastic magic trick. She gasped and AHHH’d as I slid it gently and slowly in and out. The skin of loins near her crotch made a silhouette of my dick as I entered her.

“Oh my god,” Natalie cried out. “Please.. don’t stop Mr. Smith.”

Natalie’s head kept rolling back, and her eyes closed in ecstasy, she looked like she wanted to faint from the excitement and pleasure. I could hear begging sounds from her under her breath, “pleases” and “pleases” and “don‘t stop”. I kept pushing her head back to view the lesson carefully.

“Natalie, please pay attention like everyone else,” I grunted. "Natalie pay close attention to how my cock is stretching your inside."

I was close, her cunt was tight, and her body was shaking. “Mr. Smith, I’m going to c-“ Natalie writhed and trembled.

“Oh god,” She gasped. “Oh, my fucking god.”

“Natalie! Language! Don’t take the Lord’s name in vain.” Mrs. Kelly barked.

“Fucking Christ, he’s splitting me in two. It feels so good, ” Natalie panted. She kept rubbing at her clit frantically, and her body twerked, and juices flowed onto my shaft. I was close and grunted and held her thighs and pushed them towards me as I shot my load deep inside her. My semen probably mixing with the spermicide in the cervix now.

I finally let Natalie collapse on the desk, her legs dangling and her chest heaving up and down.

“Well, so that’s spermicide. It’s not effective against STDs but should be effective against pregnancy, though not fail-proof. One advantage over the condom is I can feel Natalie’s tight pussy very well without the rubber getting into my way. Though it’s recommended you use it in conjunction with a condom or diaphragm.” I panted.

Again the class the rest of the class came up and argued over who should go next as I cleaned myself with a wet-nap and wiping off my sweat.

What was a man to do?