This is the worst…Karma thought as he clenched his fist at his desk in the back of classroom 3-E. He would have been paying attention to Koro-Sensei's lesson if it weren't for his other idea of a "lesson" that he was giving Karma right now. The thin tentacle was now wrapped entirely around Karma's cock, slowly pumping up and down.

Koro-Senei had called Karma to see him after class one day, and said that he won't get away with his little stunts for free. In return for having destroyed two of his tentacles, Koro-Sensei is allowed to toy with Karma's body however he wants throughout class for the rest of the year. Of course, Karma refused and began to walk out before Koro-Sensei said something the made him turn back. It would either be Karma, or Nagisa. It's up to him. So, fearing for his friend, Karma agreed.

Thank god he sat in the back, where people didn't pay much attention to. Every day, Koro-Senei would sneak his tentacle under the floorboards and up Karma's pant leg. If he tried anything funny, like cutting off the tentacle or hurting it, another would shoot at Mach 20 speed right to the bottom of Nagisa's pant cuff. Only Karma could notice, and he was helpless. He couldn't even skip class.

But right now, Karma was also in a bit of a predicament. Koro-Sensei had been stroking him slowly for two minutes, and he was being driven over the edge. Something was weird with him today, and it might have been due to the cookies the yellow octopus made them that morning. There must have been some sort of drug in Karma's cookie, because he was overly sensitive. He usually didn't let Sensei's little games show on his face, since it just turned the perverted monster on more. But today, it was extremely hard…in more ways than one.

Karma's head was down, and he was leaning towards the desk, panting quietly, a pink flush across his cheeks. Both his hands were gripping the edge of the desk like mad. Endure it, endure it…he thought. He looked up at the octopus with pure killing intent in his eye, but the teacher's cheeky smile only seemed to become more mischievous as he continued his lesson. Nobody noticed yet. However, the tentacle was picking up speed. Once Karma noticed this, his eyes got wide with panic, and he started to reach down to take of the tentacle. But, sure enough, there it was. A tentacle at Nagisa's ankle. He clenched his fists tighter and bit his lip.

Before long, Koro-Sensei was pumping him very quickly. It was getting hard for the boy to keep in his voice. He was a sweating, panting, shuddering, blushing mess in the back of the room, and nobody noticed except Koro-Sensei, who's teaching voice was getting deeper with lust as he watched his young student. Soon enough, Karma felt the building pressure in his abdomen that signified his limit. Unable to hold back, he let out a small noise, a mix of frustration and pleasure, as his climax was building. Nobody heard it…except Maehara. He looked back at Karma, and his eyes got wide as blood immediately shot to his nose, and his dick got super hard. What the hell is up with Karma?

"Karma…hey, Karma-kun!" he whispered to Karma. Karma lifted his head and looked at Maehara with a hooded, lust-filled eye. Panting, he contained his rush and smiled sweetly, beads of sweat on his forehead. Maehara did not know what was going on, but Karma looked beyond sexy right now. I mean, usually he looks hot, but his expression, blush, and the way he was bent over the desk, gripping the edges, was too much. "Are you feeling okay? You look like you have a fever…"

Panting, Karma managed to respond to his classmate with a smile still on his face. "Im fine, Maehara-kun, it's just a bit hot in here-Ahh." The tentacle split in two and the other half had reached down and stroked Karma's asshole. His eyes got wide and he released one of his hands to cover his mouth. He bent his head over and closed his eyes, desperately trying to stay controlled. Raising his head, he smiled at Maehara again. "Thanks for your concern though."

"It's nothing…" Maehara responded, slowly turning back around. His fantasies began running wild. He thought he was straight, but seeing how damn sexy Karma looked, he wanted to be the one to make him look that way. I mean, he usually has a cool, composed, mischievous look on his face. And, it wasn't really any hotter in the classroom than usual. Soon, Maehara began to hear small moans coming from behind him. He turned slightly to look at Karma from the corner of his eye, and practically came himself. Karma had one hand between his legs, gripping onto the seat of the chair, and the other was covering his mouth. His eyes were squeezed shut, and he was shuddering and panting. Soon enough, he stiffened up, and then relaxed. Maehara had no idea what just happened. What in the world is wrong with Karma today… Karma was now panting heavily, both hands on the desk again, as if trying to regain his breath. Suddenly he looked up, and shot a death glare at Koro-Sensei. Maehara turned, and looked up at their teacher. He was looking back at Karma, with his book covering a wide smirk. Maehara could still hear Karma's heavy breathing. Something is definitely going on between them right now…is Karma trying to assassinate him? If so, why did he look so…flushed? Maehara couldn't catch on, so he just continued to listen to the octopus, silently willing his erection to disappear.