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The Teachers of Grimmauld Place

Nymphadora Tonks sighed as she clocked out of her day job after another long day. While she enjoyed being an Auror, sometimes it got to be too much. The paperwork was out of control. She winced as she stepped into the lift that carried her down to the Ministry Atrium. Her neck muscles were tight again after sitting all day.

With her being a card-carrying member of the Order of the Phoenix, she knew that the Dark Lord Voldemort was alive and well and free to cause mayhem once again. The only problem was that the esteemed Minister, Cornelius Fudge, refused to believe it. He was going so far to deny it that he had benched most of the Auror Department. Criminals were allowed to roam free while she had to be imprisoned at her office desk. The smarmy, old bastard would see reason soon. Hopefully, before it was too late, Tonks thought bitterly. She avoided talking to anyone all the way down until she finally stepped out of the lift. Tiredly, she walked out of the Ministry and apparated home. She had just enough time to eat a snack and take a hot bath before she had to be back at Grimmauld Place.

All she wanted to do was relax in her hot bath for a while longer before crawling into bed for a nap. Unfortunately, there was nothing but annoyance waiting for her at the headquarters. The main reason for the annoyance was the resident werewolf, Remus Lupin. She had been trying to get things started with him for a while, but he resisted her advances every single time. At first, she thought that it was normal. After all, he was quite a bit older than her. But she figured that sooner or later, he would come around. She was a young and sexy girl if she was being honest. Not to mention that boys all over the world would love to have a chance to get a Metamorphmagus into bed. All except one it seemed. Remus had been beaten down by life so much that he instinctively turned down great opportunities simply because he thought that something would go wrong and he would be let down once again. She understood, but damn! That was no way to live your life. Did she really want to be with someone that would constantly try to keep her at his level instead of rising to hers?

Tonks huffed and got out of the tub. She dried herself off and looked at her nude body in the full-length mirror. Turning to the side, she hefted her tits in her hands. Naturally, they were a small C, but as a Metamorph …

Her breasts inflated until they were double D's. Jumping up and down a bit, she watched them bounce, nearly clobbering her own chin in the process. 'Even these won't convince him,' she thought bitterly. At least she knew someone that would enjoy them. She snorted at the thought. She had often caught Harry checking out her breasts. Tonks usually wore tight t-shirts and rarely paired them with a bra. As such, he had caught a peek at her hard nipples poking through her shirts more than once. She loved to tease him by making sure that he saw her any time that her nipples were hard. Sometimes she even went out of her way to make them hard before seeing him. He deserved a nice visual treat after his rough life. He deserved a bit more than that, Tonks corrected herself. That's when she stopped short.

Thinking for a moment, Tonks suddenly had a smile spreading across her pretty face. If Remus didn't want to have a bit of a romp with her, then would it be so bad to have one with someone else while she worked on him? It's not like he would ever know if he even agreed to start something up with her that is.

She knew that Harry was a virgin. His blushing cheeks told her everything that she needed to know. And like she said, he deserved a treat. Having her take his cherry would be the perfect thank you, she decided. There was also the benefit of Tonks finally getting some action. She had been stressed lately, and Madam Bones often told her to find a nice man to rattle the headboard with. The older woman said that it was the perfect stress relief. Tonks believed her. Old Bonesy always came to work with a smile on her face. Tonks often wondered who was rattling her headboard.

Her plan was simple. She'd sneak into Harry's room at Grimmauld Place tonight and toss up a few charms to keep any nighttime wanderers at bay. Thankfully he had moved into a spare room after Ron's snoring had reached legendary status. Giggling to herself, she checked herself out again. Turning to see her front, she reached down and ran her fingers over her pussy. Tonks's breath caught in her lungs as her fingers brushed over her hard, needy clit. Just thinking about what would happen that night was getting her wet. She let her fingers slip between her lips and then brought them up for her to see. They were glistening with juices. Popping them in her mouth, she sucked them clean before turning to check out her ass. Her ass was shapely and firm, a Black family trait that all females seemed to inherit. She wiggled it from side to side and found it to be satisfactory. With that done, she went to put on some clothes. Tonks didn't wear anything sexy, at least on the outside. She didn't want anyone asking questions. Like always, she went bare-breasted underneath her shirt. Under her jeans, however, she wore the tiniest panties that she had. It was nothing more than a few strings connected together. It hid nothing from view. Smiling to herself, she apparated to Grimmauld Place.

The Teachers of Grimmauld Place

Harry was lying in bed after another day of cleaning the dirt and grime that had accumulated in the house after more than a decade of being unused. Mrs. Weasley could certainly be a bossy woman at times.

He was just about to close his eyes when the door crept open. He expected it to be Ron or Hermione, but he was surprised to see Tonks step into the room. "Tonks! What are …" He was cut off by her holding her finger to her lips and shushing him. He kept his mouth shut until she placed charms around the door.

Tonks didn't bother answering him. She was already too worked up. Placing her wand on the side table, she lifted her t-shirt off of her body and enjoyed the gasp when her tits dropped out of their fabric prison and bounced up and down. "Today's your lucky day, Harry. I've decided that you need a few lessons when it comes to pleasing your future women."

Harry's eyes were wide and his mouth was open in shock. He stared at her gorgeous breasts as she kicked off her boots and unbuttoned her tight jeans. Poor Tonks tried to take them off sexily but ended up getting tangled and falling onto the bed. "Oof!" she cried out. Having fallen on top of Harry, she looked at him to apologize only to see that his face had been smothered by her tit. Giggling, she moved it until her nipple was rubbing against his lips. "Don't be afraid to give it a kiss," she teased but gasped when he did just that.

Tonks bit her lip while she struggled to get out of her jeans that were still up to her knees. "Help me with these, will you?" Harry eagerly nodded.

Tonks laid there, her chest rising and falling as he grabbed the waistband of her jeans and worked them off of her body. Tonks shimmied and soon they were tossed aside. Now only her tiny panties were between her and the pleasure that she was desperate to feel. Feeling naughty, she rested her leg on his shoulder and began rubbing the crotch of her panties. Tonks moaned loudly. "Want to take these off as well?"

Harry didn't even answer. Tonks just watched as he lifted her legs up and slid the panties right off of her. "Mmm. Kiss me, Harry," she moaned, wiggling around sexily. Harry started to lean forward, but Tonks placed her bare foot on his chest to stop him. She shook her head. "Right here," she corrected him, tapping her clit with her finger. Seeing him blush fiercely brought her a great deal of satisfaction. Opening her legs wide to invite him in, he leaned down and began kissing the inside of her thighs.

Tonks's eyes fluttered at the wonderful sensation. His lips were getting closer and closer to her wet slit. Suddenly, she heard him inhale deeply. Smirking, she asked, "Do you like how I smell?"

"Yes," she heard him croak, and she could tell that he was horny as hell.

"Then stop teasing and lick me!" she moaned, taking his head in her hands and pulling it against her wet cunt. When his tongue touched her clit, Tonks gasped and flopped back on the bed, breathing heavily as she pinched and pulled her hard nipples. His tongue was wiggling against it wonderfully, but she wanted more. Concentrating, she grew her clit to three times the normal size. Threading her fingers through his hair, she ground herself against him. Tonks loved how he was sucking on her clit like it was a nipple. When he let it go, she whined and tried to stuff it back in his mouth, but he had already dipped down and began licking and sucking on her smooth lips. Her body jumped when his tongue touched her asshole.

"Take your clothes off," Tonks demanded in a husky voice. Sitting up, she helped him remove his shirt before she pushed him onto the bed and pulled his boxers off.

"Holy shit!" Tonks gasped when a ten-inch monster sprang out. "Oh, I'm going to have fun with that," she told him, pinning his shoulders to the bed and straddling his waist. Forgoing foreplay, she reached behind herself and grabbed his fat cock. Leaning forward, she rubbed the hot tip against her weeping pussy. Shuddering at the sensation, she placed the tip inside of her and slowly lowered herself. Both of them moaned and arched their backs. Harry because it was his first time inside of a woman, and Tonks because a cock had finally hit her g-spot. As soon as his cock hit her g-spot and cervix simultaneously, her Metamorph powers kicked in, and her pussy tightened on its own. She wasn't even moving and her walls were massaging his cock and making him feel as if he were about to cum. Her tits had ballooned into massive jugs which she used to smother his face.

Harry was too busy licking and sucking on Tonks's inflated tits to realize that she had started moving her hips. She started out slow to get used to his size but had rapidly picked up the pace. Her hips were rotating in circles and rolling back and forth. She sat up and pulled her nipple from his mouth. Reaching back, she grabbed his balls and started fondling them in her palm. Harry's hands weren't idle either. They reached up and squeezed and groped her big, bouncy tits. Shrinking her tits back to normal, Tonks leaned down and kissed him.

"Play with my asshole. Girls love it while getting fucked," she told him, still working her hips and making him shudder. Doing what he was told, he grabbed her ass and buried his fingers between her cheeks. Using the tip of his finger, he began rubbing the hole itself.

"Like that?" he asked. Tonks nodded, closing her eyes and enjoying the pleasure.

"Play with the rim as well. Run your finger around the edge," she instructed as she bounced hard on his lap. Her tits were flopping up and down so much that she had to shrink them further to keep them in check. Deciding to tease him, Tonks suddenly morphed into Hermione.

Harry gasped at the sudden turn of events. He nearly blew his load right then and there.

"What's the matter, Harry?" Hermione said sexily. "Don't you find me sexy?" she teased, lifting up her curtain of bushy, brown hair and causing her small breasts to look incredible as they stretched upward. Next, her brown hair suddenly turned red. Now Ginny was bouncing on his cock. Harry had to admit, the redhead looked sexy as hell.

"Rub my clit, Harry. Girls love it!" Ginny gasped, rolling her nipples between her fingers. Harry complied and slid his hand to the point where their bodies met. Slowly he worked her hard clit until Ginny was shaking badly. "Oh god! Yes! That's it!"

Her body started spasming as her pussy got tighter and tighter. Harry was about to lose it. When Ginny turned into Fleur, Harry had had enough. Pulling her down, he kissed her deeply as he grabbed her ass and thrust his cock deep into her. Tonks squealed as she came hard from his rough treatment. In her blonde, Veela form, her pussy contracted and milked him of every drop that he had. Harry fired thick ropes of hot cum into her as their tongues wrestled. After a moment, Tonks turned back to her normal self and flopped down next to him. Curling up against him, she kissed his bare chest as he smiled stupidly and stared at the ceiling. Seeing this, Tonks rolled her eyes. "Snap out of it, moron!" she told him. "The night's still young. Now that we've gotten your first nut out of the way, it's time to move onto some more advanced positions," Tonks explained.

She got on all fours and turned around. She was just about to wiggle her bottom at him when he caught her by surprise. A long, fat cock slammed right into her wet pussy and instantly made her cum again. She didn't know how long they'd be able to go, but she was convinced that tomorrow, like Bonesy, she'd have a big smile on her face.