Harry Apparated behind a bush in a Muggle area of greater London. Fortunately the spot where he arrived was shielded from the street by bushes. He was still on someone's lawn so he hastily moved, exiting onto the sidewalk before he attracted any extra attention. Tonks arrived and followed him a few seconds later.
"It's nicer than your old neighborhood," Tonks said, looking around at the houses.
They were about the same size as the homes on Privet Drive and held a lot more personality. Harry admired the surroundings and thought it would be a pretty decent place to grow up. Maybe that was why Hermione turned out so well.
"Do you have the address?" he asked.
"Pretty sure it was 116," Tonks said.
Harry pulled a paper out of his pocket and double checked. Tonks was correct. The two of them walked down the street, counting up until the right house came into view.
It had been one week since the minister effectively gave Harry a free pass to help Hermione's parents however he saw fit. Hermione had sent a letter to them, warning them that a letter would be coming from Harry. He'd written Eliza Granger using a Ministry owl and gotten a response. The Grangers had been nothing but appreciative about Harry's concerns and completely understood the need for caution. A verdict had been reached quite quickly and easily in light of their agreeableness.
Arrangements were made for a temporary relocation to America. The Ministry would help compensate them so that they could get on their feet in a new country, and Ministry workers would easily be able to handle the Muggle paperwork. It was all in order… or it would be in 48 hours once the last of the forms were processed.
Harry and Tonks were coming now to meet the Grangers face to face and ensure that they were on the same page about everything. Additionally, Harry's group would be taking turns acting as security for the Grangers. He and Tonks were taking the first shift and would be staying overnight. The following day, Neville and Angelina would take over. Susan would take the last shift, overseeing their portkey trip to make sure they were sent off to America properly.
"Here it is," Tonks said.
Hermione's childhood home was a pleasant two story house with a tree in the yard and a garden around the side. A moderately upper class car sat in the driveway. Tonks and Harry walked the path up to the front door and knocked.
The door opened almost instantly. Harry rapidly found himself being hugged.
"You must be Harry!" said Eliza Granger.
She gave him a hug that would have seemed fierce if Harry wasn't so well acquainted with Molly Weasley.
"That's right ma'am," he said. "It's nice to meet you."
"No, it's nice to meet YOU," Eliza said. "Our daughter talks about you so much that it's baffling it took this long."
"I think we ran into each other at King's Cross Station a couple of times," Harry said. "Other than that, the relatives I stay with over summers aren't very big on visiting friends."
Or anything fun, he could have added, but the goal was to come up with an excuse, not to make the nice lady pity him.
"Come in, you two," Eliza said. "I can't have you stuck on my top step with all that you're doing for us. I'd be a terrible host."
As the two of them came inside, she aimed her attention at Tonks. "I'm Eliza, and what is your name dear?"
"Tonks," said Tonks. "No last name."
"Oh my! Are you an orphan?" Eliza asked while covering her mouth. "I'm so sorry."
"She's NOT an orphan," Harry said. "She has a perfectly loving mother and father. The rest of her family aren't so nice, though. Tonks IS her last name. And her first name is—"
Tonks slammed a hand over his mouth to shut him up.
"You don't have to worry about his sly words," Tonks said. "Just call me Tonks. We'll ALL be happier that way.
"Of course," Eliza said. "My husband is just finishing setting the table for dinner. You'll join us, won't you? I believe the plan was for the two of you to stay the night."
"That's correct. Dinner would be lovely," Harry said.
Harry could understand where his best friend got her looks now. Her dad had good looking features that looked like a more masculine copy of his only daughter. Meanwhile, with Eliza…
Harry finally understood where those huge jugs Hermione grew into came from. Her mother's were slightly bigger, even. Probably a result of her old pregnancy.
The Grangers were accommodating hosts with good senses of humor. Harry's only complaint was that the chicken and vegetables they served was… pretty bland, to put it mildly. The dentists had put together a dinner with the primary purpose of avoiding cavities.
Full but a touch bored, Harry and Tonks retired to the living room with their hosts. Tonks entertained the group by showing off her ability to morph her appearance which received plenty of applause. After that, Harry brought up the move. Hermione's parents lost some of their good mood but were completely cooperative; upset to be forced into leaving their lives behind, they were nonetheless aware that the alternative could be a grisly death.
"I wish that Hermione would come with us," Eliza said with frustration. "I know that she's worried about her friends, but if she's in any danger—"
Her husband laid his hand on Eliza's and gave her knuckles a squeeze.
"Hermione's an extremely talented and bright witch," Harry said. "One of the best our age— no, one of the best I've ever met. I won't pretend it isn't risky, but she's staying because she believes she can make a difference."
"I know." Eliza sniffed. "I would feel a lot better if she was by the side of someone like you, though, instead of that school where she almost dies every year!"
A short pause followed her statement, at which point Eliza looked between Harry and Tonks.
"I didn't mean it romantically!" she burst out. "In case the two of you are together…"
"Harry and I's relationship isn't like that," Tonks said, giving a good natured laugh. "We're coworkers."
With benefits. Fortunately, Tonks didn't add that part. Harry couldn't tell Hermione's parents that he and their daughter were in a similar relationship, so he decided to be honest but leave a few things out."
"Hermione is precious to me," he said. "I won't let anything happen to her if I can help it."
"That makes me feel better," Eliza said.
"It makes both of us feel better," Mr. Granger said, squeezing his wife's hand again.
The four of them stayed downstairs talking about everything from the dark topic of the war to Harry and Tonks' Hogwarts memories. Time passed quickly. Eventually, before they knew it, it was time for bed.
"We've got a guest bedroom, and Hermione's bedroom has been converted into another one," Mrs. Granger said. "The two of you can decide between them as you please."
True to his self sacrificing nature, Harry gave the bigger and much nicer guest bedroom to Tonks. She was smirking as she accepted the arrangement.
They split apart, everyone heading to bed. Harry slept shirtless in his boxers. Hermione's bedroom had a conjoined bathroom, so he wouldn't run into anyone in the halls in an inappropriate state of undress. He spent a while poking around Hermione's bedroom, something that would surely mortify her.
There were a lot of trophies from her days in muggle school. They weren't to do with traditional sports. Most of them were spelling bees, debate teams, and academic quiz trophies. What there weren't many of were photos. Hermione had been a pretty lonely child, her precociousness working against her.
In the place of photos from her childhood were her first friends: books. There were tons of them stacked on shelves. Harry didn't know most of the titles. None of them had any dust on them; Hermione must have cleaned them regularly, even when she wasn't reading one.
His investigations finished, Harry climbed into bed and went to sleep. An unjudgeable period of time later, he experienced a strange wet dream.
The entire room smelled like Hermione. It made him dream of their first time together, with him ravishing her in the depths of Gringotts. Good old Griphook had truly come through for him back then.
Harry and Hermione had made love more passionately in the time since. They had both improved at it and really made each other's bodies sing. Despite that, the first time would always hold a place inside of Harry's heart.
It was so raw. Their relationship progressed as their shared desires bubbled out. It was one of Harry's favorite memories. Dreaming of himself being back there a second time immediately made him hard. He kept feeling better, his dick thoroughly moist and feeling so wonderful that Harry moaned in his sleep. His arms thrashed reflexively, holding something down around his crotch.
Gagging caused him to crack his eyes open. Despite having lost the dream of Hermione beneath him, it was replaced by a reality where she was kneeling in his crotch.
Harry's hands were on her bushy hair. She snorted and gasped as he fucked her face, still half asleep. Having been worked up already before he awoke, Harry came a matter of seconds later.
He let Hermione's head up as cum poured into her mouth and dripped from her nose. She smiled at him, her flawless teeth extra white while covered in his cum. It was a much more impish smile than Harry ever recalled seeing from her. Plus, there was no way Hermione could have gotten out of Hogwarts. So this was…
"Having fun, Tonks?" Harry asked.
"What do you mean? I'm Hermione." The voice was identical to Hermione's, of course. "I brought you over to visit during the summer. We're in my childhood bedroom… and I'm sucking you off. Isn't this HOT?"
She licked around her lips, wiping away cum that was dripping from her nostrils. Her breasts were as plump and wonderful as ever; she was completely naked. Her smile, despite not looking like an expression the real Hermione would make, was extremely alluring. Harry grabbed her under the armpits and rolled them both over so that he was on top. Tonks' head landed on the pillow with bushy brown locks spread out behind it.
"Just like that. Take me!" she said.
Harry put a hand over her mouth, muffling her voice. While holding her lips shut he started to fuck her, pounding her body.
"Quiet," Harry hissed. "Hermione's parents' room isn't far away. What if they hear her voice all of a sudden? Or the rest of the noise we're making?"
Tonks spoke directly into his head, meeting his eyes and using Legilimency: Isn't that even hotter?
Andromeda Tonks seemed like a totally normal woman in all the stories Harry had heard. So why in the world was her daughter such a freak?
Harry's only option was to fuck her so hard that she couldn't get up to anymore mischief… without making noise.
One of the benefits of being monumentally gifted between the legs is that Harry could leave an inch of his dick outside a woman and still be bigger than most men. He carefully controlled his thrusts in order to keep their bodies from colliding, avoiding the slapping sound that would result. He still stretched Tonks' insides with his girth.
Harry used quiet methods of causing pleasure. Instead of something loud like slapping her body, he grabbed one of those mountainous borrowed breasts and squeezed it hard. He made sure to keep a hand over Tonks' mouth at all times. Hermione's face was showing all the signs of extreme pleasure, and his fingers were the only thing keeping Hermione's voice from penetrating the quiet of her home.
"This must turn you on so much," Harry whispered gruffly. "You love getting us into trouble. Like sneaking into my room while you were guarding me, going against Dumbledore's orders. Not that I'm not grateful for that. Your pussy made my summer worth it. I love the way you squirm when you cum.
He pinched her nipple and pulled on it, thrusting into her again at the same time. Tonks could copy Hermione's body all she wanted, but the way that she writhed was encoded into her. Hermione's appearance or not, Tonks' back arched exactly the way it always did it when she was in her usual form.
"Good girl," Harry said. "Keep cumming for me."
He could have used magic to silence them both, but right now he was enjoying using his hand to do it. There was a special thrill to the way it was clamped over Tonks' mouth. It was good to get your hands dirty from time to time, and in this case what it was getting dirty with was spit.
He shifted his other hand from her breasts down to her clit. While he was still fucking her he played with her clit with his fingers. It didn't take long to make her cum again.
"This is what you wanted," Harry said. "I expect no complaints if it gets too intense."
A metamorphmagus changing their body did nothing to eliminate potions in their system, meaning Harry didn't have to worry at all about knocking Tonks up. He was free to empty his balls straight into her pussy.
The more intense their fucking became and the longer it went on, the easier it got to forget who was underneath him. The room smelled like Hermione. She had family photos on the bookshelves. He couldn't even see Tonks' playful smile that first helped tip him off who this was. Harry's hand over her mouth slipped away, and he kissed her instead while mating press her. For about ten thrusts, he forgot to hold back and clapped his body into hers, culminating in a thick creampie.
Harry grunted as he came, their lips separating slightly. The creampie felt as good for Tonks as it did for him, giving her another climax. A splitting moan escaped her mouth.
"Mmmmmaaaaaahhhhhh!" she groaned loudly. Hermione's voice echoed down the hall. Harry's body froze.
He was about to relax when he heard a loud noise in the next room over: the room of Hermione's parents. It sounded like someone had just fallen out of bed.
He and Tonks both stayed quiet and didn't move for fifteen minutes, their hearts in their throats. Tonks had been so willing to play a risky game, but hadn't counted on losing. Finally, after they heard nothing else from the next room, they started their second round.
This time, instead of chancing anything, they were smart and used magic to block all sound like the wizard and witch that they were.