A/N : While I primarily write Pokemon stories, I was inspired to write an erotic Harry Potter story after reading my friend YDream08's work. This is quite literally the first time I have written something of this nature so please be forgiving. The story will be continued if you readers like it.

Harry tumbled to the floor, barely managing to avoid hitting his head against the floor. It had been a whirl-whind of a few minutes and the realization of everything that had happened was yet to set in. Even though he had avoided hitting his head, Harry felt his forehead exploding in pain.

The 7 Potters Plan had ended very badly, clearly someone had ratted them out. The Death Eaters were on them from the beginning

A rift in the air opened and another person tumbled to the ground beside him.

In his searing pain, Harry was unable to register what was happening. Even then, he instinctively looked to see if his friend was alright. "Tonks? Are you okay?"

Harry wanted to help Tonks to her feet but just as he began to reach for her, another jolt of pain ran through his head. Harry stumbled backwards against the wall. Thankfully, the architecture of Grimmauld Place was relatively modern and the walls weren't too hard.

The pain began to blur Harry's vision, greatly limiting what he could see. He could make out Tonk's concerned face and he could hear bits of what she was saying but the pain was far too much for him to focus.

"I can't hear you" Harry said, motioning towards his ears, trying to tell her that he couldn't process anything he was hearing because of the pain.

And then, he felt something tug at his mind.

"Harry, this is me"

A tender voice reverberated through Harry's mind.

He looked at Tonks, who nodded knowingly. Legilimency.

"Harry, you've been hit with the Urvakan Curse" Tonks' voice echoed through Harry's mind. "It's a forgotten curse from Eastern Europe. I guess the death eaters got it out of someone from that region. I'd guess Karkaroff"

In the chaos of the pain in his head, Harry could barely muster a response but seeing the worry on Tonk's face made him want to tell her that he was okay. Something within him didn't like seeing her face riddled with worry.

It then occurred to him that Tonks was hearing all of his thoughts. He blushed and she promptly bushed in response as well.

"There's only one thing that can stop this, Harry" Tonks voice rang through his head.

"What is it?" Harry thought back.

Tonks was taking a while to respond and Harry, in his pain, couldn't tell why she was being so shy.

"The Urvakan Curse only wears off when the brain releases large doses of oxytocin"

"And?"

"Well, Harry, um"

"What is it, Tonks?"

"That only happens during orgasm"

Harry let the words float around in his head for a bit. Orgasm? There was a curse that was only lifted through Orgasm? Even in the searing pain, Harry began to chuckle.

Tonks seemed to see the humour in it too and she began to chuckle as well.

As the laughter faded, Harry began to wonder on how exactly he would get to an orgasm in a state like this. He was very moody about his sexuality and wasn't someone that could jerk off to a random picture of a naked girl. He needed some ambience, like the times he'd jerk off in the bath to the softcore sex scenes in Poison Ivy. He always found softcore porn much more appetising than their hardcore counterparts. Once again, he realized Tonks was privy to his mind.

He felt his face turn red which was quite a feeling given his head was splitting open in agony. He saw Tonks blush and her hair, which had been blue all night, turn bright pink.

"I'll go to the other room" her voice rang in his head.

As she left, Harry undid his trousers and pulled them off of him. He got rid of his underwear as well and sat down with his back propped against one of the walls.

He looked down at his penis and realized it was as flaccid as one could possibly be. It had even shrivelled up, leaving the pink tip of his cock looking rather helpless. Trying to fight the pain, Harry took his penis in his right hand and slowly began to stroke it, trying to make his cock spring to life.

But as he had feared, his throbbing headaches kept him from being able to concentrate and think of anything remotely sexual. He tried, he certainly tried. He thought about Cho and the time they had shared a long, sloppy kiss in the Room of Requirement. He tried to extend that scenario in his head. Tried to picture him slowly taking off her robe. But his concentration kept breaking as the pain bounced back.

Harry tried again. He thought about Ginny and how her slender frame would look like underneath her clothes. He thought about her stomach, no doubt well toned through all the Quidditch practice, and he thought about leaving a trail of kisses through her stomach and climbing up to her chest. He thought of her wrapping her slim hands around him as he did this, and he thought of her leaving tiny kisses on his head as he left kisses on her chest.

Harry felt his penis come above and slowly begin to harden. But just as he visualized what he thought Ginny's breasts might look like, his concentration broke again as the pain burst through his forehead.

"Fuck" Harry muttered.

"It's alright" Tonks walked into the room.

Amidst the pain, it took Harry a few seconds to realize that he was butt naked in front of Professor Lupin's wife and he yanked backwards, rapidly reaching for his hand and trying to cover his now semi-erect manhood.

"It's alright, Harry" Tonks' voice echoed in his head. "Masturbation needs a clear mind"

Harry looked at her and realized there was no use fighting it. He eased up, taking his hand away from his cock. Something about being naked in front of Tonks did the trick and now his penis was in full throttle, standing at a decent 6 inches high. Harry didn't know much about Tonks but he figured that someone that worked as an auror must have been around the world and, accordingly, been with a fair number of people. Like all boys, Harry became very self aware of the size of his manhood.

"It's not too small" Tonks giggled inside his mind.

Harry had forgotten again that Tonks had access to his thoughts and the fact that she knew he was thinking about her sexually did something to his brain and he realized his pulse had quickened and his breathing had gotten heavier. This was the first time he had been naked in front of a woman that wasn't Moaning Myrtle.

"The point of the Urvakan Curse is to turn someone into a sex crazed monster" Tonks' voice rang through Harry's mind. "But it doesn't have to be this way. Let me help"

While the pain was making his head explode, the implications of what Tonks had said made Harry shift around uncomfortably where he sat.

"You're with Remus" Harry replied in his head. That was the only thing he could think of.

"We all swore our lives to ending this war and letting you go insane out of the pain of the Urvakan Curse goes against that, Harry"

Tonks knelt down next to Harry and helped him get to his feet.

A part of Harry wanted to argue. Remus was a valuable friend. Not just to him but also to his father. Could he do that to Remus? Another part of him was just over the moon. Frankly, he had always found Tonks very attractive but the fact that she was with Remus had kept him from thinking the usual boy thoughts about her. But now, all he could do was picture her naked. Did all of her hair change colours?

Harry tried to fight the thoughts but it was too late.

"I don't think I'll need to get naked" Tonks' voice echoed. "Though I am flattered that the great Harry Potter thought about me like that, with all the girls you have fawning over you"

"Remus?"

"As long as we both agree to not tell anyone, nobody will be hurt"

Harry watched as Tonks sat him down on one of the chairs at the Dining Table before getting down on her knees next to him.

"Just relax, okay? If you keep worrying about it, there won't be a point"

Harry nodded and his began to race. He had read all about blowjobs, he'd seen a hundred videos on Dudley's computer. He was finally going to experience the real thing.

Harry figured that if this was going to happen, he might as well enjoy it. "You're really pretty, Nymphadora"

Tonks looked at him with a smirk. Harry figured he would have some fun and pictured himself toying with one of her nipples. He wasn't sure what colour they'd be and decided to give them a pink hue in his mind.

He saw Tonks blush and just as he had started to move forward with the scenario in his mind, he felt the most incredible softness engulf his cock. He looked down to see Tonks had slowly begun to lick his throbbing manhood.

She had sounded like she was being super professional about it all but as Harry studied her face, he could tell she was letting herself enjoy this.

Harry watched as Tonks kept her eyes closed as she slowly slid her tongue up and down his penis. Harry could move his penis gently up and down when he was erect and he did just that, moving his cock slightly out of the reach of her tongue.

Tonks opened her eyes, surprised when she couldn't locate his penis with her tongue. When she realized what had happened, she giggled and Harry giggled back at her.

Tonks seemed like she wanted to play. She grabbed Harry's cock with both hands and held it down at her mercy.

"No games with me, Mr Potter"

She took it into her mouth and Harry felt like his entire being was sucked into a magic tunnel from which there was no escape. As she gently began to bob her head up and down his shaft, Harry felt his breathing quicken and he instinctively pulled his cock backwards before driving it right back in. All of Harry's male hormones kicked in and Harry began to fuck her mouth.

As he did this, Harry looked down at the pink haired beauty that was working on his cock and looked down the line of her neck. Her robes bared quite a bit of her collar bones and Harry felt a primal urge to kiss them. He wasn't sure of whether to act on these urges.

"Go ahead"

Harry didn't waste any time. He pulled her up and then pushed her onto the dining table. With Tonks on her back, Harry got on top of her and began to flood her neck with kisses.

During all this time, Tonks never let go of his cock, continuously stroking it through everything. With the pain in his head, the gentle touch of her neck on his lips and the sheer joy of having his cock tugged by her warm hands, Harry couldn't think but then, he didn't need to.

On top of her and on all fours, Harry reached for her robe. As he unbuttoned them, he found a skin tight white t-shirt underneath. In his lust filled daze, Harry couldn't bother with taking her t-shirt off entirely. Instead, he merely lifted them up and over her breasts. To her Harry's delight, she wasn't wearing a bra. Her breasts weren't the biggest but Harry liked that quite a bit. They were just the right size to be handfuls and each was topped off with an adorable pink nipple.

"Those tight bras get in the way of moving around comfortably"

Tonks chuckled and looking at her, so did Harry. As she chuckled, Harry realized he felt more than just lust when he saw her. She was the most beautiful person he had ever seen.

"Why thank you, Mr Potter"

"I like it when you call me that"

"They're pink, just like you'd imagined them"

Harry did something not many boys would do. Despite having Tonks bare breasts right there for the taking, he instead reached up and planted a kiss right on her lips. He had been nervous about doing it and instantly regretted it, thinking perhaps that he had crossed the line. However, Tonks kissed back. Harry let the kiss last a very long time, all the whole enjoying the feeling of Tonks' tiny hands working on his throbbing cock.

Harry pulled out of the kiss and looked down, right at Tonks' eyes.

"50 points for Hufflepuff"

"Why thank you, Professor Potter. Would you also grade the rest of me?"

At that point, Harry realized Tonks was really into this. It had crossed whatever imaginary lines they had a long time ago. He followed the cue and dove face-first into her breasts. The softness of her breasts coupled with the constant joy of having his cock tugged by the most beautiful witch he had ever seen sent him into overdrive.

Harry felt his cock begin to throb. Before he could warn her, he felt like life pour out through his penis. As the semen rose from his testicles and moved up the veins in his shaft, Harry felt like his soul did the same thing. He exploded in her hands, ropes of his cum landing in all directions, including some that landed on her stomach.

As his orgasm faded, so did his pain and Harry's mind began to clear.

As things settled down, Harry realized his penis, now rather flaccid, was still in her hand and he looked at Tonks, submissively laying beneath him, her robes semi-parted and her t-shirt raised above her naked breasts, bits of his cum splattered on her toned stomach.

It seemed like Tonks was back to her usual self too.

"Well then" she muttered, looking away from Harry.

"Y-yes" Harry quickly moved away, trying to look for tissues that he could give her.

"It's alright, Harry" Tonks said after a pregnant pause "That can happen. It's just biology"

Harry looked at her. She'd gotten fully dressed in the few seconds. Harry was still naked, though. But even though his lustful haze had parted and he was completely in his head, he felt oddly comfortable just standing there in front of her, naked or otherwise.

"Was this the first time we really hung out?" He smirked.

"Hopefully we can keep our clothes on the next time" Tonks giggled.

To be continued