Cho Chang sat down in Professor Slughorn's potions class with a heavy heart. She was back at Hogwarts for another year and lonelier than ever. In the fourth year Cedric had passed on and then she'd had an almost relationship with Harry last year only for him to sort of break things off after she betrayed the DA to Umbridge. Now she was rather ostracised to everyone and felt more alone than ever.

Which was why she was both surprised and simultaneously delighted when Harry, the boy who lived grown into a very attractive young man, sat down beside her at the desk. Thinking no one would sit with her, Cho had gone to the back of the classroom, but now the hottest commodity in Hogwarts was plonked next to her with a beaming smile on his face.

"How are you Cho? We never really had a chance to talk since…" He trailed off but Cho finished the sentence for him.

"I betrayed you and all my friends?"

"Don't look at it like that Cho. After all she practically tortured you to get it out."

"I suppose."

"Look I'd really like to start over our friendship. I like you a lot Cho and I think we could be good mates." He offered a hand and she shook it smiling for the first time in a while. But it was bittersweet. They were mates. Not lovers, not partners, no romantics whatsoever. Just friends.

They made idle small talk until Slughorn bumbled into the room. There was still the same chemistry and energy between them Cho had felt last year. She understood perfectly why Harry was the sexual fantasy and sometimes stimulant of most girls in the school. How many times had she been woken in the night by a shrill scream, only to find it wasn't murderers, rapists or dementors but a girl with a hairbrush and a very vivid imagination. The most disturbing part of it was walking past the ajar door of a second year bathroom to see a large framed photograph of the flawless mess of jet black hair and piercing green eyes hung up by the showers with a distinctly dildo-esque object hanging beside it. Of course as a Ravenclaw sub-prefect she'd confiscated it and definitely hadn't shared it around her dorm room. The photo was too good to be destroyed and definitely too good for those brats in second year. Harry had just finished the swimming section of Tri-Wizard tournament and positively gleamed, his toned muscles standing out in the sunlight. He was wearing a skimpy speedo and like many girls Cho often wondered what lay beneath. Little did she know, she would soon find out.

Harry was making good progress, making up for the lost time he'd spent at the Burrow by having his wicked way with four girls so far from the list of one hundred. He'd fucked Lavender on the train, screwed Linda behind the broom shed, taken Fiona roughly in one of Hagrid's pumpkin fields and entered Tabatha's restricted section, in the restricted section. All this achieved in just four days back at Hogwarts. But now there came a tough nut to crack. Cho was still suffering from guilt and he had to put her at ease. Maybe it was a little selfish to do something like this, but he genuinely liked Cho and he knew exactly what she needed. An orgasm. Just one orgasm not from her hand or a cold piece of plastic, but from a warm blood-filled appendage, whether it was his fingers, tongue or cock. Or all three. The point was, was that Harry had a knack for women and their various erogenous zones and when he was in his groove, orgasms were in plentiful supply.

Cho was enjoying the conversation immensely, and was disappointed when Slughorn tripped and stumbled his way into the classroom. However, Harry wasn't about to let the Chinese girl slip out of his grasp. He carried on the conversation through a series of surreptitiously passed notes. As with Lavender, all he needed to do to get her giggly and smiling was a few compliments. They were genuine, but nonetheless a tactical ploy.

"So how many Ravenclaw tossers were beating down your door, last night?" he asked winking at her.

She giggled quietly and wrote back playfully, "Oh nine or ten. But I had to turn them away. I need me a real man." Harry smirked at the note and looked up to find Cho staring suggestively at him.

"Mr Potter and Miss Chang, I fail to see what the funny side of the joke you are laughing at is but will you politely stop giggling, or else the first year class is down the hall," Slughorn puffed, not realising that the mirth was not caused by a joke but instead by the increased sexual tension between the two at the back. The other students weren't interested in Potions but they were hardly bothered with whatever Slughorn was ranting about either and so didn't see the lust develop in both Harry and Cho's eyes.

The notes were continually passed to and fro as Slughorn droned on oblivious to the scratching of messages and the blatant eyefucking going on behind him. Harry paid complement after complement while Cho began to drop innuendos like pak choi into miso soup. Every reference she made to their not being enough 'meat' from the Ravenclaw boys, making her wonder whether she should grab a midnight snack from Gryffindor to keep from hunger, made Harry's eyes bulge and the blood rush to his groin. Every praise of her silky dark sash of hair or her flawless face or great figure made her flush and twirl her hair a goofy smile on her face. She would then smirk suggestively at Harry and write back of her desires.

Ever so gradually the conversation slipped into just sex talk, each note dirtier than the last, talking about what they liked in a partner, with obvious reference to each other.

Harry had had enough. There were only 25 minutes left for him to make Cho cum and decided to hasten the process.

"OMG this lesson so boring," Cho wrote rolling her eyes.

"Well, I have an idea to pass the time if you're up for it."

"I'll do anything."

"Anything?," Harry wrote with a wink. He continued, "Do you trust me?"

"Absolutely, positively, 100% no, I don't trust you."

"Good." Was all he wrote before dropping his pencil on the floor. He pretended to scrabble around on the floor for it, while actually hiking up the skirts of Cho's robes making the Chinese girl gasp, quietly.

Harry returned to his seat but kept his hand firmly lodged up the robe giving the soft thigh a gentle stroke with his thumb.

Cho was shocked but also incredibly aroused, heat rushing to her loins and her panties becoming considerably damper. She looked at Harry but he was staring fixedly at the board, as if paying attention to the lesson. Cho knew that this was wrong, but for merlin's sake this was Hogwarts heartthrob Harry Potter trying to finger her in a Potion's lesson! Was she gonna say no?

Of course not. But she felt explanation was required. She scribbled a note.

"What are you doing?" He wrote back simply:

"You." Cho blushed.

Slughorn was talking endlessly about safety equipment. It was a well-practised routine which would leave him at the board for an age. So Harry got bold. He began to kiss Cho's neck and nibbled at the shell of her ear. His questing hand continued to rub at her inner thigh but it wasn't enough. He began to whisper huskily in her ear.

"You need to relax Cho. You're a beautiful [kiss] charming [kiss] intelligent [kiss] and just fucking sexy girl. I'm just helping you realise that. Lending a helping hand." She turned her face and caught his lips with her own in a brief but nice kiss, her hand cupping his face slightly. She kissed him again and then looked at him through her eyelids, an expression of pure lust and mouthed "Fuck me!" very clearly, taking advantage of the moment to reach down and feel his crotch, noting the large size. Her eyes widened and Harry was caught between surprise arousal and his usual cocky smirk.

Pretense long gone Harry moved aside the flimsy fabric of Cho's g-string before ramming two fingers inside the soaking pussy while lodging another on her clit. It was all the ravenclaw could to stay silent and not moan like a bitch in heat and beg Harry to fish out his whopper and fuck her til she screams. But she didn't do that. She let Harry ravish her with his fingers, scissoring and curling them hitting all the most sensitive and pleasurable areas with ease, while a class and their professr remained unaware.

Cho threw her head back and let out a silent scream as Harry touched on the g-spot sending jolts of pleasure up and down her body.

"Something wrong, Miss Chang?"

Slughorn had turned to see Cho in a rather compromised position. At the call of her name, she snapped into focus and sat up. The class was looking at her now almost expectantly and quizzically, and Harry was still fingering her. God why was she such a slut? Letting herself be violated in a Potions lesson. But something deep inside her, and it wasn't just Harry's fingers, told her that she never wanted this to end.

She recovered quickly. "Can no one else smell that? God it's rank!" She sought desperately for a name. "Justin! Was that you!" To her delighted surprise, Justin actually looked guilty and was ribbed by his mates. Slughorn looked unconvinced. But he ssuddenly perked up.

"Good heavens look at the time. We're at the end of the day already. Well,time flies when you're having fun, I suppose. See you next Tuesday for Magical Cures. Oh and I want to see Potter and Chang on their way out. Thank you."

Cho's blood ran cold. Had he realised what it was they were doing? That that 'bad smell' was actually her in the throes of passion, which incidentally hadn't yet brought her to orgasm which was maddening, and the only smell was that emanating from her soaked cunt? Surely not. But then…

"I'm going to caution you two, but I want you to know I don't want any of that behaviour in my classroom again. I mean what were you thinking?"

"I'm sorry professor, it won't happen again." Harry said quickly.

"Oh it's alright for you Potter. You've already passed the preliminary and you're on course for an Outstanding. I can see why you would feel no need to put in effort but that is no reason to distract Miss Chang here. She needs to work hard and that won't be helped by your… your… tickling!"

The pair were shocked. Is that what he thought was going on? That Harry had been tickling Cho?

"Yes I'm sorry sir, I'll bear that in mind."

"I hope so. And Miss Chang, I think I have a book that will help you, it makes the more difficult areas of the course much simpler. Now where did I put it? Oh fiddlesticks. It's in my study. Look could you wait here for about half an hour while I dash over and get it? Potter will keep you company."

I'm sure he will, Cho thought mischievously as the Potions master tottered out of the room. Harry followed him to the door, shutting and bolting it before turning to face Cho with the grin of a Cheshire Cat.

"You wanna finish the tickle session?" he smirked.

"Don't make it creepy," was all she said before kissing him long and passionately, their lips colliding and staying almost glued together for some time. They came up for air, and leaned their foreheads together in a tight embrace. Harry muttered something and suddenly the pair were naked and alarge thick appendage was now poking Cho's bare and rather damp thigh. She looked down and gasped at a cock that defied nature.

"And that goes inside me?" she asked in disbelief.

"That's the usual way." He kissed her again and hoisted her into his arms, her legs locking tightly around Harry's waist as he walked them over to Slughorn's desk. The wood was cold against her backside but this Harry's hands were large and warm and kept a firm, almost aggressive grip on her arse.

Their lips were still attached as Harry lined his enormous member with her entrance. Cho threw her head back again in sheer pleasure as Harry penetrated her, his dick pushing through the soaked walls of her pussy. Her cunt gushed with her precum as Harry sheathed himself inside her. She moaned loudly as Harry sucked on the pressure point on her neck before whispering huskily in a voice that dripped with lust.

"Tell me what you want babe," he said. Cho couldn't take the teasing. She was feeling more full than any hand or hairbrush could make her feel and she was guessing no other man's cock would give her this sort of pleasure.

"I want you to fuck me," she said quietly in a shaky voice. She was having trouble thinking about anything but the massive cock deep inside her.

"I'm gonna need more than that sweetheart." Harry was just being cruel now. With great effort Cho assembled the words in her brain before saying.

"Please, God Harry, just stop being a twat and fuck mine. Fuck me with your big, thick cock until I never want any other, just fuck me like the naughty Ravenclaw slut I am!"

Harry complied.

He began slow, but at Cho's insistence began to ram in and out of the gushing cunt, their skin slapping together, his ever-tightening balls, slapping against her arse.

Cho was in heaven, Harry Potter, well-hung heartthrob of Hogwarts was taking her like a naughty schoolgirl on the professor's desk. She felt her first orgasm sweep over her with glorious pleasure.

"OH GOD HARRY! OH YOU'RE SO FUCKING GOOD! I'M SUCH A NAUGHTY LITTLE SLUT, ARENT I HARRY! A SLUT WHO NEEDS TO BE FUCKED. YOUR COCK FILLS ME SO WELL, SO FUCKING HUGE! FUCK ME! FUCK ME! FUUUUCK!"

Harry was surprised at Cho's vulgarity but was eager to give her a second orgasm before he came. He reached down and began to play with Cho's clit, the little sensitive nub going into overdrive as Cho's arousal built again. She was panting like a bitch in heat as Harry pounded into her with his large cock, her cunt walls tightening fast around the dick.

"You like this Cho? You like my fingers on your clitty while I fuck you?"

"Oh god, yeah I love it – don't stop – so fucking much! OH FUCK!"

Cho fell over the edge again and Harry knew he would be soon behind.

"I can tell your close Harry, I want you to fill me with your cum! I wanna feel it shot into my dirty wet cunt!"

Harry cried as he shot thick ropes of white cum into the soaked pussy. The two stood like that for a long time, Harry's cock softening. The loss made Cho whimper, disappointed that the sexcapade was over. Harry zapped their clothes back on and pulled Cho into a deep long kiss.

"That was great. Best I've ever had Cho. Unfortunately, now's not a great time for me, relationships wise." The ravenclaw nodded understandably. Deep down she'd known this would be a onetime thing. Unless…

"But you know, if you ever need help with your, uh, 'tuition,' just let me know. I'll always be prepared to… give you a tickle."

Cho giggled and kissed him again.

"Just creepy, Potter. Just creepy."


Next time: Harry is surprised in the showers by someone he definitely wasn't expecting!