The Teacher's Sticky Demonstration
Wow.... How ruthless. No matter what, the teacher had endured without moving this time as well.
I had never once seen her move during the actual sex. Of course I hadn't tormented her on purpose just to see it happen, but it was still impressive. I'd only meant to go for thirty minutes but ended up making it fifty.
I checked the time.
...It's already eight.
The students would have reached school by now, right?
With a wet squelch, I pulled my cock out of the teacher's pussy. I'd come several times, so her insides were a filthy mess of my semen. There was no way she could teach like that. Whoever was inside the doll would probably agree.
For now...
I packed the teacher back into her box and left the storage room. I wanted to give her time to clean herself. She'd probably finish preparing before the announcement calling for someone to bring her rang.
...No, that's not it. Even if I wiped her with tissue the smell would linger, so I left to let her wash properly.
So that's how she interpreted it? I was grateful she was filling in the blanks herself.
When that thought appeared, I quickly left the room. It was better for me to get out of the way so the teacher could clean up.
The fourth-year Class A classroom was noisy with a few girls chatting among friends, but the boys sat in complete silence. It was obviously because of what happened yesterday. From their faces, the experience had left them genuinely traumatized.
I get it, but...
That didn't mean I could sympathize. They'd have to overcome it on their own.
I turned to look at the girls.
Honestly, it didn't feel bad. If anything, it felt good. In a world where watching porn well earned you honor-student treatment, maybe I'd built the settings perfectly.
That was when it happened.
Ding~ Dong~ Dang~ Dong~
The announcement to retrieve the teacher rang out. Since it was my turn on duty, I started to stand.
“Ah, Taejun. I’ll go this time.”
“...?”
One of the girls stopped me and headed out of the classroom first. Well, if she was bringing the teacher for me, I was grateful.
When I sat back down, my desk partner Seo Jia called out to me in a meaningful tone.
“Hey.”
“Yeah?”
“You really don’t feel anything at all?”
“Nope. Why?”
Seo Jia began staring at me with clear suspicion.
What about me? When I looked back at her, puzzled, Seo Jia asked outright.
“Have you really already had your birthday?”
Ah. So that was what she suspected. It made sense. A male who hadn’t turned twenty yet literally couldn’t perceive “sex.” My behavior must have looked similar to those boys.
But my birthday was January 1st. I was a full adult.
“Yeah, I have. Why?”
“Your parents didn’t delay your birth registration or anything, right?”
“...No.”
To suspect me over something so small. If she knew I’d had sex with the teacher this morning, she’d probably faint from shock.
With a rattle, the classroom door opened and the girl who had gone to fetch the teacher returned. She casually set the packaging box down on the floor from the cart, left the lid open, and returned to her seat.
The teacher slowly sat up. Once she was out of the box, she walked to the front of the blackboard. Was she checking that everyone was present? She scanned the class without saying a word.
Then her gaze stopped—right on me.
Wondering what was going on, I stared back at her with a confused expression. There was something about the way she looked at me. It felt like she was silently expressing dissatisfaction.
A sigh actually appeared in her thought bubble.
Hmm... maybe I had gone too hard during the morning sex? Still, her voice when she greeted the class was bright despite that dissatisfied look.
“Good morning, everyone. Shall we begin today’s lesson?”
It was the second day of school—the start of sex class.
The first class was uneventful: we simply watched a movie. The teacher said she had originally planned to show porn, but after yesterday she worried the boys wouldn’t be able to handle it, so she switched to a film. It was a 19+ romance.
“I’ll turn off the lights now, so please focus on the movie.”
She even drew the window curtains, and the film began.
Once it started, the teacher picked up a chair and walked over to the students’ side. It looked like she planned to watch the large TV together with us.
But then she sat down right beside me on my right. Extremely close. So close it felt intentional.
...?
If I spread my legs even a little, her thigh would touch mine. I glanced at her, but the teacher ignored my look and kept watching the movie.
Hmm. I decided not to overthink it. We had already had sex, after all. She probably just felt more comfortable sitting next to me than with the other students.
I turned back to the TV.
Grab—
...?
I had to look at the teacher again. She had suddenly taken hold of my wrist. Her eyes, however, remained fixed on the screen.
What is she doing?
Why this sudden skinship...? The moment I stared at her in confusion, the teacher guided my hand straight between her legs.
Huh?
Wait, was she asking me to do it here?
At first I thought she wanted me to stroke her pussy. But that wasn’t it. Her silk panties felt strangely damp. Sticky and wet... no way?
Her thought bubble confirmed my suspicion.
She must have pulled my hand down to show me. The situation had suddenly become awkward.
It was definitely arousing. But the way she phrased it didn’t sound like pure scolding.
After that the teacher released my hand. Then, smiling brightly—she had been smiling the whole time—she looked down at her own belly and began gently stroking her lower abdomen. The expression on her face was like a benevolent mother caressing the child inside her.
The thought bubble instantly turned that maternal gentleness into pure vulgarity.
This teacher... was a total masochistic pervert. She seemed to be enjoying the situation from the start. I really wanted to see what the actual person inside that doll looked like.
...What did that mean? Can’t speak?
With that thought she began rubbing her thighs together. I pretended not to notice and focused on the movie again.
The first-period movie ended, and we were given a ten-minute break. The teacher seemed to want a rest too and returned to the grade office. The boys also headed outside, cigarette packs already in their hands.
Oh right, they’re all twenty.
I’d forgotten because of the uniforms.
Once the ten-minute break was over, I waited to see what the second period would be. The teacher opened the classroom door and stepped inside, carrying a metal briefcase in one hand.
She set the case on the teacher’s desk and spoke.
“Did everyone rest well? For second period, I’m going to teach you about adult products.”
Adult products—in other words, sex toys.
Click—
The teacher opened the metal briefcase. Inside were several toys you’d normally only see in porn. She picked one up.
“This is called a dildo—an insertable toy shaped like a penis. It replicates skin texture, veins, and even the glans just like the real thing. Dildos come in many materials: silicone, glass or stainless steel, PVC. The most commonly used is silicone. It’s soft, flexible, and has excellent heat conduction.”
...Seeing this, the class really was serious about the subject.
“As for how to use this dildo... shall I demonstrate with my own body?”
That was when it happened.
Twitch—
The teacher’s body jerked at her own words. While I watched, wondering what was wrong—
...Something was off. It felt like her thoughts and her actions were completely out of sync.