Warning: slash in this chapter

-I'm bored!

Draco Malfoy was watching his simmering potion, looking totally idle.

Harry Potter, by his side, was watching it too, but with a relieved smile. Since he managed to be paired with Draco this time, not only the potion was perfectly done, but in addition, Snape wouldn't be unfair with him, because that would have mean giving a bad mark to his favourite student. However, after six sighs from Draco, he started to be annoyed.

-Honestly, Draco, what's with you? This potion is perfect, and finished before everyone else! What could be better?

-I tell you what, something else to do!

-Oh, I see, Mr Perfect! You always managed to finish your work before the others, and so you become accostumated, and don' t realize how lucky you are. While us, mere mortals, we are very happy to be able to do nothing for a few minutes. Geez, Draco! It's almost a miracle to be able to be lazy in Potions. What else could you want?

-Something more interesting to do! There is at least two better things I could think of right now, and none of them is watching a potion. I'm sure you see what I mean.

The last sentence was said with a slightly husky voice, and for some reason, probably the fact that teenage boys always think of the same thing first (yes! SEX! You guessed), it affected Harry. In other words, he felt himself stiffened...a bit, ok, but Draco was looking at him at this moment, and the look on Harry's face told him exactly what was in his mind.

-Hu,ho! Honestly, Mr Potter, couldn't you think in something else sometimes? In the same husky and this time seducting voice. Then a Malfoy smirk. And his hand 'accidentaly' fell on Harry's thigh. Who became absolutly hard. And whispered, with a begging voice

-No, Draco, please, no...

-Hummm! I think that you are a bit tight in this pants. Maybe I should relieve you?

He opened Harry's pants and took his member in his hand with a wink.

-No Draco, please, we are in potions! What if Snape sees us? And we are supposed to ask the others before...

-Don't worry! (Draco was now whispering in Harry's ear, with that same seducting voice.) He won't bother me, no problem. Besides, we are at the bottom of the class. No one will see us! And for the 'others', we'll tell them right after, it'll be ok!

-No, no Draco! No... Harry was still begging, but for Draco to stop or go on, he didn't know. So, when Draco began to stroke his member, he just shut his mouth, and try to concentrate on avoid to moan. Believe me, that was not easy! After all, we are talking about the absolutly not shy Slytherin Prince and Hogwarts' god of sex! Consequently, Harry was in heaven and hell (trying not to make any sound, of course) at the same time.

Draco stroked his penis slowly at first, but seeing that Harry was able to control his voice, at least, he worked harder on it. Then he made a up and down movement, going faster. Harry tried to stay up, but soon, the pleasure took his forces, and he felt himself sink into his seat. So he clutched the wooden table in front of him, digging his nails into it. At some point, the urge to moan became to important, and he had to remove one of his hand from the table to put it in his mouth, as he was about to come... and he almost fell of his seat. That amused Draco greatly, and, since the end of the lesson wasn't before a good 15 minutes, he decided to make it last longer. So he slowed his move, and even stopped it. Of course, that earned him a glare and an angry growl from Harry, but as Draco finally found a way to entertain himself, he wasn't ready to let go. Instead, he pretend to drop his feather, then casted a look around the class, and, as nobody was watching, he went under the table.

There, he licked Harry's penis, then hearing a sigh from above, engulfed it in his mouth, moving up and down. Above, Harry was looking petrified... or very attentive to the lesson, from a teacher point of view (even if the teacher wasn't saying something at the present moment, instead mocking an other Gryffindor). Feeling all Harry's body stiffened was too much for Draco, and he laughed on the member in his mouth... which didn't help the owner of said member. To torture him even more, Draco flicked skillfully his tongue around it, as he was bouncing up and down. And slowing his path every time he was feeling Harry on the verge of coming. Finally, he let him climax, as Harry's desire of screaming became almost unbearable. Finally relieved, Harry was able to sat straight again, glancing at the class to be sure his strange attitude wasn't noticed by anyone.

Then Draco put Harry's penis back into his pants, took his feather back, and sat back with a goofy smile. Finally, that lesson wasn't completly boring. But he wanted more. There were still ten minutes left until the end of the class. Besides Harry had 'fun', and him not. He looked in front of him, where Hermione was explaining the next step of the making of the potion to Neville. Seeing at what stage they were exactly gave an idea to Draco, and Harry, who finally gained his composure back think 'Oh no!' watching an evil smile spreading on Draco's face. Too right he was!

Indeed, Draco took a crocus flower and threw it in Hermione and Neville's potion. At first, none of them noticed anything. Then a thick white smoke spread from the cauldron, and, soon, it filled the whole room, and nobody was able to see anything. They heard Snape said " None of you move! It's not dangerous, but it will be if you knock over a cauldron. Wait until it dispersed. And believe me, the one responsible for this will regret it. Honestly what are you th..."

But the remaining of his speech was lost for both Harry and Draco, because the later put the former on the floor, and started to remove his pants. Harry tried (again) to protest silently, but was not really convinced (always liked having sex!). Besides, he had to admit that it was quite exciting to have sex during a class, and under the ( crooked) nose of the most unlikely teacher with that! So, under the expert hands of Draco, he found himself hardening once more. Only, this time, it wouldn't be a hand-blow job, but a full fucking session. Both of them roamed their hands on the other body, and soon they were ready; After all, they had only a few minutes to finish their business, and they couln't waste time. So Draco started to lick Harry's entrance, and feeling him ready, cast a lubricate spell on his penis, and positionned himself. He pushed slowly, because it was the first time with an other man for the two of them. His head was close to Harry's, so he heard him when he whispered "Go on please". Glad to comply, he pushed himself entirely into the other, and, as he didn't encountered resistance, went on a slow in and out move. Harry felt a bit of pain, but quickly the pleasure dominated it. "Faster, please!". So Draco went faster. And faster. And even faster. They both had an hard time trying not to emit noise, but they couldn't help gasping. Then Draco climaxed in Harry with a low moan, letting his seed go into the other's arse. And soon, Harry climaxed too, gasping, but his seed spread onto the furniture above him (yeah, actually they were under the table).

And, suddenly, Hermione felt herself wetting in front of them. And the need for sex became so strong that, due to the lack of partner, she had to do it all by herself. She laid on the floor, and slipped her right hand in her knickers, under the still persistent smoke. Then she flicked her fingers on her sensitive flesh, and, (luckily) soon climaxed. She cast a cleaning spell on her hands to remove the smell, and sat back on her seat.

Harry cast the same spell on the furniture, and put his pants back. Then him and dracosat back too, and waited for the smoke to disperse, trying to look the more innocent possible. Harry managed more or less, but Draco couldn't help a goofy smile. That's why when every of them were able to see clearly again, Snape immediatly guessed who was responsible.

-Mr Malfoy! What had you in head when you decided that filling te class with smoke was a good idea?

-Pfff! I was just bored, this class really need more action! answered Draco casually, noy even bothering to deny.

-Oh really? Bored! Well, I'll find you some worthy occupation. Everyone out, except for Mr Malfoy!

As none of the student wanted to deal with a furious Snape, they cleared the room. Harry was walking away, when Hermione grabbed him by the arm.

-Harry, what really happened in there?

Harry blushed a bit, but, as there was no point in denying with Hermione, told her the whole story. By the time he finished, she had surprise written on her face.

-What? I know it's not right, but it was fun and...

-I felt it.

-Sorry?

-I felt it! I suddenly needed sex in there, and nothing excited me. I felt it, I'm sure!

Harry gawped at her, and she returned his astonished look. That's how Draco found them when he went out of the room.

-Hem! Are you two alright?

-Drake, we have something to tell you.

They told him what happended, and he too look astounded.

-What the fuck? How can it be possible?

-Don't know. Come on, we have to say the others, we need to sort this out.

A/N: Hello! Sorry for the end, I didn't know how to finished it properly, so I just leave it like that.

So this was the 4th chapter. I think it's less funny than the previous, sorry for that but it's more difficult to make them do very weird things in Potions.

Thanks to my reviewers, I'm glad to see that you like this story.

And to everyone, review please, I really need your advice about this!