Regulus found watching Hypatia shop interesting. She soon took over the list with single minded determination. She mumbled to herself as she added this and that to her basket, and crossed things off the list.

They soon left the potion supply store and made their way to an upper scale clothing boutique named The Smoking Cauldron.

Again, Hypatia moved with purpose. She got extra clothes for Draco and Cissa, much more than they had asked for. She was happy to spoil others, but it seemed she did not extend the same courtesy to herself.

He noticed how her eyes lingered on things he was certain would look marvelous on her, but left them behind.

Another time he might have stopped her, and told her to try them on, but they didn't have the time for that today. Instead he sneakily floated them towards the salesperson, who collected them with the understanding to charge them to the Black vaults and have them delivered to Grimmauld Place by owl.

When they left the boutique, more people were starting to fill the alley. Hypatia hooked her large shopping bag over her shoulder, and thanked Merlin she had asked for the rest to be delivered.

It was impossible to miss how people's eyes gravitated towards them. Regulus had briefly glanced at the Daily Prophet while Hypatia was in the shower. The news of their bonding and his reappearance was front page news. Hypatia held his arm a little tighter as they walked. She never liked how other men looked at her, especially when she dressed up.

Regulus felt her trepidation down the bond, and squeezed her hand reassuringly. Just then she nearly jumped behind him. His wand was in front of him before he could even think, his instincts honed from his days among the Death Eaters. A blonde boy was at the end of his wand, his hands up in the air.

"I didn't mean any harm."

"Who are you?"

"Heir McLaggen, I'm in Gryffindor with Hypatia."

Hypatia stepped out from behind him, her posture tense, and her lips pulled into what Regulus supposed could pass for a smile if you were socially inept. He looked between her and the boy. She was clearly uncomfortable, and didn't want to talk to him.

"Lady Potter-Black and I are in a hurry."

"And you are?"

Hypatia sucked in a breath as Regulus answered. "Her husband, Lord Regulus Potter-Black."

A look of surprise took over McLaggen's face, and Hypatia desperately wanted to punch it off. Surely it wouldn't be unladylike just once.

"So the papers are true then? I just assumed it was gossip."

"I assure you it's not. So I'd thank you to stay away from my wife. She doesn't seem interested in talking to you."

McLaggen shifted to try to get a better look at Hypatia, bringing him a step closer. It was the wrong move. Hypatia removed her wand from her pocket. Harassing her was one thing, but she wouldn't let McLaggen be rude to Regulus.

"Get out of our way Heir McLaggen or you'll find yourself unable to produce Heirs."

His face paled as he took a step back, "You wouldn't."

"I would."

McLaggen scowled. Regulus took Hypatia's hand and brushed past the boy, making sure to add a little more force to the shove of his shoulder than was truly necessary.

<><><><><><><><><><><>

Hypatia set down her bag on the floor of her bedroom and let out a deep breath. She hadn't even stopped when she stepped out of the Floo. She had a feeling this was going to turn into an argument, and she absolutely did not want to have it where the others could hear her.

She could feel Regulus behind her from the second he stepped through the Floo. His eyes on her were like fire, but she kept going. When she heard Regulus close her bedroom door behind her, she spun and sat on the edge of her bed. With a flick of her wand she raised a silencing spell.

"What was that?!" Regulus demanded.

She feigned innocence, "What was what?"

"That boy. Why were you so scared of him?"

"It's nothing."

"That was not nothing, Hypatia. You jumped a foot in the air, and threatened a Pureblood Heir."

Hypatia rolled her eyes, "McLaggen asked me on a lot of courtship dates. He wouldn't take no for an answer. He was everywhere I went, and he's such a rake. I didn't want to deal with him."

"He stalked you?"

"No, it wasn't like that."

"That's exactly what it sounds like!"

Hypatia let out a frustrated groan. "Look, no one would stalk me, Regulus! It's fine!"

"It's really not! A woman says no, you walk away, that's the end. As much of a bastard as my father was, he at least taught me that. A man who doesn't listen when you say no is a threat!"

Hypatia stared at him as his words started to sink in. Was McLaggen dangerous, and not just annoying?

"Perhaps you have a point."

"I thought so. I need you to tell me about these things. I need to know who your enemies are so I can protect you. Think about that today!"

"Yes daddy," she mumbled petulantly.

Regulus froze, "What did you call me?"

His body had gone tense. Hypatia panicked. She swallowed thickly and averted her eyes.

"It just slipped out.You were scolding me and-"

Regulus tilted her face up, fire in his eyes. "What did you call me?"

"Daddy?" She asked smally.

Regulus' chest heaved as he took a deep breath. Merlin, there was something about that. He kissed her hard, biting her lip as he pulled away. He kissed his way down her neck to a spot that made her keen against him.

"Fuck, Hypatia. You're perfect. Daddy's good girl. Isn't that right?"

"Yes Regulus."

He nipped her neck harder with his teeth. "Not Regulus. Not right now."

"Yes...daddy?"

Regulus moaned as her whispered words sent jolts through him. He unzipped her dress, and watched as it slid off her. He reached out and ghosted his hands up and down her small waist.

"Sit on the edge of the bed."

Hypatia stumbled back until she found the bed, and did as instructed. Regulus took a few seconds to appreciate how beautiful she was, how perfect she looked in her tiny scraps of lace. His gaze was too much to endure without his hands on her.

She squeezed her thighs together. "Please...daddy."

He strode toward her, removing his shirt and waistcoat with a spell as he did so. Even on the edge of the bed, she was still so small. He grazed the back of his fingers over her jaw.

"You want Daddy to take care of you?"

"Yes please."

Regulus nodded. She was pulling him in. If they didn't already have a soul bond he would be sure she had stolen his right then. The lilt of her voice, the way she said please, would be his undoing. She could ask for the world and he'd supply it with a smile.

"I'm going to do something new, Hypatia. Do you remember what you promised me? You tell me if you want me to stop. I get the slightest hint you're not enjoying this, and I'll stop."

"I understand." Regulus smiled at her, she really was such a good girl. So eager to please, and be pleased. "Lay down princess."

Hypatia blushed but did as he asked. Regulus hooked his fingers around her underwear and pulled it down as he knelt in front of her. He littered her legs with kisses, and nips of his teeth. She squirmed, and gasped, but did her best to stay put. She wanted to be good for him.

He bit at the inside of her thighs. Her eyes rolled back in her head as she was overcome by want. If he would just- oh.

"Fuck, fuck, fuck."

She couldn't think. She could only feel Regulus' tongue circling her clit, his fingers sliding through her wetness, and into her core. He stretched her in a way that was new and better than anything she had ever tried. His fingers were long and pressed a spot she could never reach on her own.

He looked up at her as he worked her body. Her legs dangled over his shoulders. Her heels dug into his back. They were going to leave scars, they might even draw blood, but it only turned him on more. He was used to a bit of pain.

Hypatia's words had turned into nonsensical streams of curse words and pleas of "don't stop" and "right there". As if he would stop.

Never.

He was beginning to get that Hypatia was fragile, but how depended on the person. For him she was fragile like a teacup. She'd shatter in his hands, against his tongue, around his fingers, because he could put her back together beautifully. But to a threat, oh no, she was fragile like a bomb.

The dichotomy was intoxicating.

Regulus felt her hands tangle in his hair, gently changing the angle of his face until she shook even more. Her legs tensed around his shoulders, and her core clamped down around his fingers as she rode out her orgasm.

"Regulus," she whispered and he stood to his feet, wiping his mouth with a lascivious grin.

"Yes love?" She held out her arms silently, and he climbed onto the bed, pulling her towards him. "Are you okay?"

Hypatia peeked one eye open, "I am more than okay. I'm...I'm great. Thank you for taking care of me Daddy."

She rolled over into his arms, resting her head on his chest. Regulus ran his hands up and down her bare back. "So you don't mind calling me that?"

"No. I mean you do take care of me, in every way a person could take care of another. You're in charge of the family. One day you'll be the father of my children. I don't think it's weird."

Regulus took a sharp breath in at the mention of him giving her children, and Hypatia leaned up on her elbow to look at him. She got a particularly mischievous look in her eye.

"Does that turn you on?" She teased. Regulus closed his eyes and put an arm over his face. He motioned to his rock hard erection with his other hand.

"Oh, it does! All you Purebloods have a breeding thing, I swear to Merlin! It's the line of succession, I think"

"Hypatia," he warned sternly.

"Right. Sorry. I want to-" she rubbed down the length of his penis over his pants. "But I don't know how."

He opened his eyes, and looked at her. She was doing that thing where she looked demure because she wanted him to tell her what to do. She sat there with her wide green eyes blinking at him, waiting. She looked more than a little eager.

"Come here angel."

He pulled her back to the edge of the bed with him, "Get on your knees."

She knelt in front of him, and Merlin, if this didn't just give the perfect view of her tits. Regulus blew out a breath and vanished his pants and boxers. Hypatia's eyes went wide as she took in the sight of him.

"Have you ever seen a penis before?"

"Well in health books, but not in real life."

Regulus felt smug as he caressed her cheek. She was so utterly his. Hypaita reached out her hand and stroked it shyly, starting at the head and stroking down.

"Harder," Regulus instructed.

She gripped harder, and Regulus groaned. Fuck, any pressure was better than what he'd been dealing with.

"Lick," Regulus ordered.

Hypatia did as he said, starting at the base and licking up to the head. When she ran her tongue under a vein on the bottom Regulus shivered.

"In your mouth baby girl. You can do it."

Hypatia took him in as far as she could. Regulus moved her hands to grip the base that didn't fit.

"Pump," he told her, and she did.

She moved, sucking as well as she was able to around his girth. She experimented with moving her tongue, hollowing out her cheeks, slowing down, and speeding up. She memorized Regulus' reactions, and adjusted based on them.

"Fucking perfect- good girl- so good- just like that- don't stop."

Sucking dick, Hypatia decided, was a little jostling, but she loved the power she had over him in these moments. She cherished the slip of his tightly held control when he put his hands in her hair and thrusted gently into her mouth, pushing his cock into the back of her throat. She was dripping wet again just from pleasing him, and she wondered if she could cum just from this.

"Fuck, princess. I'm gonna cum. I'm gonna cum in your mouth."

She found herself excited at the thought. She wanted to make him cum, to know she had taken care of him in the same way he had for her. He pushed into her mouth at a faster pace until he stilled, spilling down the back of her throat. Hypatia did her best to swallow every bit.

Regulus pulled himself from her mouth, and pulled her to her feet, and onto the bed with him. She laid her head on his chest as they both caught their breath.

"Are you okay Hypatia? Your mouth just felt so good, I lost it a bit at the end."

"It was fine," Hypatia assured him.

"Are you sure? You can tell me if you didn't like it."

"I think I liked it a little too much," Hypatia laughed.

"What do you mean?" Regulus asked. "Oh, you mean?"

He trailed a hand down to her entrance, "Did you cum from blowing me? You're soaking wet."

"No, but almost."

Regulus rolled over until he was on top of her, his hands already trailing down her body, "Let me take care of that for you."

Hypatia's eyes rolled back as she was lost to pleasure once again.