Chapter 4

Author’s note: As promised, a straight incest chapter. Gay readers may want to wait for the next and final chapter. For straight readers, this chapter is your ending to the story. Relevant tags for this chapter are Ma/ft, mt/ft, incest, brother/sister, teacher/student, voyeurism, petting, coercion.

The year was drawing to a close and the final exams were fast approaching. I knew both Jason and David expected to get those questions in advance as well in return for a favor in kind. This wasn’t just a test though. I knew the questions for the final exam would be worth more to them, so I planned to up my price. My first thought was to have both of them suck my cock, but then I came up with an entirely different plan for Jason. It would require some cooperation from him in advance, so I had Jason come to my class to discuss his final session.

“So, Jason, you know the exams are coming and I’ve been thinking about how I can help you with them.”

He nodded, as he obviously assumed this was what I wanted to talk about with him.

“You remember how last time you brought someone else with you without asking me in advance?” I continued.

“I didn’t talk to anyone else about this!” Jason was quick to assure me.

“Easy there,” I smiled. “I didn’t think you had. I just mentioned it because this time I want you to bring in someone else.”

In some way I think it was funny. Every time Jason would agree to a tutoring session, he’d think he knew what he was signing up for. And every time, he’d end up doing something he absolutely didn’t expect to happen. This time was no different as I saw his puzzled look once more.

“I’m sure you’ll understand that the price for the exam questions will be higher than usual.”

I waited for his reaction before I continued. He nodded, but I could see a hint of fear appearing on his face.

“Thinking back of a previous session, I realized that I’d love to watch you having sex ... with Jessy.”

“No,” was his immediate response. After a second or two he repeated himself, emphasizing his point. “I’m sorry, but I can’t do that. Jessy and I agreed that no one could ever know about it. I never should have told you that.”

“I understand. But since you did tell me that story, I don’t think giving me a chance to watch the two of you would be that much worse for you.”

Jason didn’t budge.

“So you don’t want the questions for the exam?” I asked him.

“I do, but there has to be another way. Can’t we just do again what we did the first time?”

“Oh, so you think you can get the questions and a blowjob? Sorry, buddy, that’s not going to happen.”

As Jason didn’t respond, I decided to paint the picture of his situation even clearer. After all, I knew what I wanted, and I was going to make sure I got it.

“Now, you’ve done pretty well on your last tests. But I don’t think I need to tell you that your results in the first semester are a problem. You need to do well on the exam if you want to pass this course.”

“I know,” Jason sighed, “I just can’t involve Jessy in any of this. She doesn’t know I told you about us ... Isn’t there anything else I can do for you?”

Despite him asking for it himself, I doubted Jason was really willing to agree on alternatives. Maybe if the alternative was explicitly laid out for him, he’d realize that as well and agree to my original proposal.

“Okay, you have three options. First, you can just study for the exam and hope for the best. Second option, you let me watch you have sex with Jessy. She doesn’t need to know I’m watching, if that’s what you’re concerned about. Finally, you can suck my cock and let me fuck your ass.”

That last option was deliberately presented to Jason as crass as possible. Together with the explicit mention that Jessy didn’t need to know, I hoped it was enough to convince him. Even though my intentions called for Jessy to know of my presence, but I thought it better not to let Jason know that.

The distress on Jason’s face was clear. I could see him wrestling with the decision, trying to find a way out.

“She won’t know?” Jason asked, showing his resignation at the situation.

“That’s right,” I confirmed. I did feel bad about lying to him, but I guess there’s no room for morals in the little head.

“How would you, we...”

I had been thinking about this already, so I explained to him what I had in mind. He needed to get her in my classroom with the excuse of being really horny (or anything else that would convince her to go along with him), so he couldn’t wait till after school. Having a closer relation with me after a few one on one tutoring sessions (no need to divulge what actually happened there), he could tell her that I allowed him to spend time studying in my classroom during lunch unsupervised. In reality I’d hide in the small room behind the class that served as a large storage closet. He just needed to make sure I’d get a good view of her body and the action from the door to the storage room.

We agreed that we’d set the plan in motion the next day. I didn’t want him to stress out for days, nor give him too much time to get second thoughts about the whole idea.

After my last morning class, I hid in the storage room and made sure to not fully close the door. After a few minutes the sounds of students in the hallway died out as they all headed for lunch. And then all I could do, was wait. Wait and hope Jason would be able to convince Jessy to have sex in a classroom. Everyone knows time seems to slow done when you’re waiting. But what’s truly agonizing, is waiting for something you really want but you’re not sure is actually going to happen.

Finally I heard the soft click of the door echoing through the otherwise silent room. Soon it was followed by hushed voices.

“Yes, don’t worry, he never comes back.”

I recognized Jason’s voice. My heart raced as I listened to their conversation, stilling myself to avoid any unwanted noises that might give me away. Clearly Jessy wasn’t fully on board yet with what Jason wanted or, more accurately, what I wanted. Before long they fell silent. Curious about what was going on, hoping that something was going on, I dared to peek out of the slightly open door of the storage room.

My heart skipped a beat as I saw the two of them gently kissing each other. Jessy mostly had her back to me and I noticed Jason had his hands resting on her cute little ass. When he opened his eyes, Jason looked towards the storage room. I admired how he didn’t flinch at all when he noticed me watching them, even though he clearly needed to gather his courage before taking the next step. After a few seconds I saw his right hand move up towards her breasts. At first, Jessy’s hand shot up to stop him, but Jason’s hand simply stayed on her breast with her hand on top of his. He whispered something in her ear, causing her to blush, and eventually she removed her hand from his.

Even though my view was mostly blocked by Jessy’s back, it was clear Jason was fondling her breast over her top. It was just as clear that their kiss grew more passionate, more hungry. When I heard a soft moan escape Jessy’s lips, Jason’s hands disappeared between them. Only moments later I saw him taking off his shirt, allowing Jessy to run her hands across his bare chest. At the same time he slowly lifted her top, allowing me a view of her bare back, only covered by her bra strap. Jason quickly unclasped and removed her bra, leaving her completely topless. From my vantage point, I only got a few glimpses of the side of one breast. Just knowing she was topless right in front of me, though, had my rock hard dick straining against my pants. I wanted to set him free, but I was afraid any noise would give me away.

Obviously, I wasn’t the only one affected by their passionate make out session. Fumbling hands between them soon led to two pairs of jeans hitting the floor, and I was treated to the sight of Jessy’s panty-clad ass. She wasn’t wearing any fancy lingerie but just simple white cotton panties. Somehow that only made it more real to me. Instead of a porn video schoolgirl, this was real life, live action tantalizingly close to me.

As instructed beforehand, Jason then led her to my desk to give me the best possible view of what was going to happen. First his body appeared from behind her, allowing me to see his tented boxers and his otherwise naked body. My attention was quickly diverted, however, when Jessy turned around and I finally got a proper look at her bare breasts. Not overly large, they were a perfect handful with large erect light brown nipples. Her skin appeared soft and flawless, with a clear tan that had darkened a little more over the last month of early summer.

Jason may have been reluctant to agree to this before, but he sure stepped up once he was on board. It could have been a coincidence of course, but when they reached the desk, he turned Jessy so she was almost completely facing the door from where I was watching the whole scene. By design or by accident, he offered me a great view of his twin as he grinded into her from behind. With one hand groping her tits, occasionally tugging at her nipples, the other disappeared inside her panties. Jason’s fingers moved in a way that was unmistakable, and Jessy’s response told me she was clearly enjoying his ministrations.

Jessy’s head was thrown back and she was biting her lips. That was the sign for Jason to lower her panties, exposing her pussy to my hungry eyes. Her inner lips were protruding between her outer labia, making her pussy appear even more inviting. Now that she was naked, Jason lifted her onto my desk and pushed his boxers down, freeing his young hard cock.

Quickly glancing at the door to the storage room, Jason saw me watching them, completely enthralled by the action before me. I gave him an encouraging nod and he positioned himself between his sister’s legs. Just as I had told him before, he had made sure to lay Jessy on the desk with her head towards the door, giving me a first row view of her complete body, with him standing between her legs, as he rubbed his dick against her pussy.

Four eyes were watching him tease her and then slowly slip his cock inside her. Jessy gasped as he filled her up, stretching her pussy around his hard shaft. He started slowly at first, sliding his cock in and out, giving me an excellent view of the way his dick disappeared inside her pussy. Her gasps grew louder and more frequent as he picked up speed, and it wasn’t long before he was pounding into her with a reckless abandon. Jessy’s tits bounced with each of Jason’s powerful thrusts, and I saw her grabbing onto his arm to keep her balance. The wet slapping sound of flesh hitting flesh filled the room, mingling with their moans and gasps.

“What the hell is going on here!?”

Both Jessy and Jason were clearly shocked and terrified beyond believe as they heard my voice. I walked out of the storage room, approaching them slowly as I let them take in my presence. Jessy immediately tried to cover her bare chest and legs, but Jason seemed too shocked to react besides staring at me with his mouth wide open.