Horndog
Copyright© 2025 by MrPlotThickens
Chapter 4: Rita’s Deal
Erotica Sex Story: Chapter 4: Rita’s Deal - Watch as Sirius navigates his way through the Hogwarts of the old days and the new. The way to a man’s heart goes through his belly, and the way to a woman's heart goes through her cunny—Sirius chose to live by those ideas.
Caution: This Erotica Sex Story contains strong sexual content, including Ma/Fa Fiction Fan Fiction High Fantasy Mystery Paranormal Magic Transformation
As the knocks came, Sirius and Lily’s faces immediately turned to the door. Panic struck as they noticed the puddle of their sex juices was on the floor.
“Fuck!” Sirius cursed.
Lily jumped from his arms and grabbed her wand from the study table, “Yes, we did ... A bit too much.”
She flicked it, and instantly, the floor was cleaned. Then, with a few more swishes of her wand, the clothes in the drawer flew onto her body—a knee-length brown skirt and a white half-sleeved top. She quickly put a towel on her head to hide her messy hair and pushed naked Sirius into the bathroom along with his clothes.
“It’s open, Mum!” She shouted and acted normal while sitting on her bed, as there was a small blood stain on it. The room smelled of her perfume, which she used to mask the other scents.
Mrs Evans walked in and looked around, “Where is your friend?”
“Bathroom,” Lily replied, her tone apathetic. “He’s a bit too narcissistic about his looks—especially that curly hair. Every few minutes, he uses water to keep them in shape.”
Mrs Evans giggled and took the dishes. “Well, he’s a handsome young man, so it’s normal. Anyway, both of you can come downstairs in fifteen minutes. Dinner is ready.”
Lily watched as her mother left and closed the door. Without making any noise, she locked it and walked over to the bathroom door, whispering, “She’s gone.”
“Join me for a bath then.” Sirius voiced from inside, the shower already running.
“We can’t. Mum called us downstairs for dinner.”
Bam!
Sirius abruptly opened the door, appearing in all his naked glory. “Come on, Miss Evans. Do you really want to sit with your parents with my cum still in you?”
Lily turned red, not very used to talking dirty unless she lost control, “You won’t behave, and we’ll be late. She might come back up here!”
Sirius chuckled and just pulled her in by her hand and quickly took off her top. “Nothing intimate; it’s just a bath, Lily. I can use a hand to scrub my back.”
“Ugh ... Fine.”
She took off her clothes right away and stepped under the shower with Sirius. His hands always remained on her body, rubbing, touching her everywhere, and holding her close. His erection had returned long ago and pressed above her belly, poking her as if it was asking for something special.
“Sirius, I can’t now...”
“I know, I know.” Sirius chuckled, noticing her conflicted face. He knew if there was time, she’d have gone for it. “Just clean yourself, quickly.”
With his reassurance, both of them used some soap and bathed. Of course, Sirius couldn’t help his mischievous hands and, in the name of helping her, touched her all over, arousing her further. Lily did the same, spending a little too much time cleaning his member.
But thankfully, they only spent ten minutes in the shower. They used magic to dry themselves and clothe up quickly. Lily needed more time to manage her hair, however, so Sirius got out of the bathroom and looked around the room, particularly at the wall full of books.
She sure loves potions. He muttered while reading the names of books.
History of Magic, How to fly?, Game of magic, Legend of Immortal Heart, Potions of antiquity ... Wait!
All of a sudden, Sirius found himself pulled back to the previous book. He took it out and reread the name, “Legend of Immortal Heart? What’s this? A children’s storybook?”
“It’s a legend.” Lily walked out of the bathroom, looking hot enough that Sirius felt like grabbing her and going for another round on the bed. Her milky thighs were quite a standout in that brown skirt. “It’s an eastern legend about a Chinese Philosopher who found a way to be immortal. But he lived for so long that he eventually killed himself, calling immortality a curse.”
Sirius looked back at the book, forcing himself to take his eyes off the pretty redhead, “Can I borrow it? Might give this a try.”
“Sure,” She didn’t even bother thinking about it. “Let’s go downstairs now before they get suspicious.”
Lily went ahead and opened the door. Sirius walked behind her, enjoying the view of her swaying hips.
“Tsk!” The adjacent door also opened just then, and a dark-haired, long-faced girl came out in old-fashioned clothes. She had quite a long neck and a particularly ugly face as she sneered at Lily and Sirius. “What are you up to now, Lily? Bringing boys to your room? Does father know about th—”
Sniff! Sniff!
Sirius began to make loud noise from his nose as if he was inhaling something. It shut the woman up and made her curious, “What are you? A dog?”
Sirius almost bellowed in laughter, as he was indeed a dog, a very horny one at that, “No ... But I think I smell something. Don’t you, Lily?”
“It’s probably the food downstairs,” Lily said.
But Sirius didn’t stop and stepped up toward the woman, Petunia Evans, he presumed. He sniffed at her and sneered, “Ugh ... Lily, do you smell something too? Bitter, like sour grapes?”
“...”
“Pff...” Lily tried to hold in her laughter the best she could and dragged Sirius downstairs by his arm. “You’re crazy! She’ll remember that for the rest of her life now.”
Sirius, being the madman he was, waved at Patunia, “If you want a wizard boyfriend, tell me anytime. I know a few who’d be interested.”
As long as you’re alive and a woman. He didn’t say that part out loud.
Sirius followed Lily downstairs and found Mr Evans there as well, sitting at the dinner table and reading some papers. The man looked like an average ordinary guy on the street that most would ignore while passing by.
Likely in his late forties and with a dad-bod, the man looked uninterested in almost everything around him.
“Hello, Mr Evans. I’m Sirius Black, of House Black. Lily’s classmate, I came to borrow a book.” Sirius introduced himself like a gentleman.
Mr Evans nodded at him and got back to reading the paper.
Seeing the man making no big deal out of it, Sirius went ahead and sat down beside Lily at the table. Meanwhile, Mr. Evans sat at the left edge, Mrs. Evans at the right edge, and Patunia at the other side. It was a small square table, so Sirius and Lily were almost cramped together on one side.
It didn’t take long for Lily to turn red. Her eyes glared at Sirius beside her as she gritted her teeth. But to act normal, she tried to eat some food. Still, her legs responded on their own.
“The food is amazing, Mrs Evans.” Sirius complimented the pretty red-haired woman. While his left hand was secretly squeezed between Lily’s thighs, his fingers were already inside her still-moist slit. She hadn’t worn any undergarments, so Sirius took advantage to his heart’s content.
“Umh...”
“Lily? Do you have a fever? Why do you look so red?” Mrs Evans suddenly asked as Lily breathed out a bit too loud.
Lily smiled at that and ate her dinner. “No, Mum. I’m fine—just had a long hot shower.”
Sirius smirked and plunged two of his fingers into her warm folds, feeling her silky smooth walls inside. The sensation aroused him as a painfully hard erection rose in his pants.
Lily was too scared, so she didn’t dare to use her hand on him. But her insides twitched and contracted, sucking on his fingers. She sometimes took a deep breath to make it rigid down there, trying to stop him from going further.
But that didn’t stop Sirius from playing with her. He felt her skirt getting wet, and his fingers found it easier to slide in and out. Her warm, tightening walls around his fingers made him want to just take her upstairs and enter her with his cock.
But the dinner soon came to an end, and Sirius finished eating the dessert, a cheesecake that Mrs. Evans had baked. He savored it and, at last, pulled out his fingers from her intoxicating warmth.
“How was the cake?” Mrs Evans asked.
Sirius, like the mad dog he was, licked his finger—not the one he used to eat food, however. “Amazing, Mrs Evans, must have been your finest creation. It was so sweet.”
Lily felt like slamming her face on the plate. But still, she couldn’t help but feel excited and rub her thighs together. It was very risky, but it was so damn exhilarating.
“I should head home now. It’ll take me time to reach London on my bike.” Sirius stood up. Thankfully, his erection wasn’t there anymore. “Thank you for having me, Mr and Mrs Evans.”
Mrs Evans gasped, bringing her palm to her face. “London? Dear, that’s so far away. You can stay the night here. Go back in the morning.”
“Really?” Sirius almost shouted excitedly because he knew that would mean a whole night of uninterrupted sex.
“No!” Lily exclaimed and stood up. She grabbed Sirius’ arm and dragged him toward the exit. “He’s a wizard, Mum—a very rich one. His motorbike can fly, so don’t worry.”
“I think I’m out of fuel.” Sirius tried to fight for it, teasingly, of course.
Lily sighed and soon brought him out of the house. She stopped after reaching the motorbike and softly pushed him to leave, “Just go now, Sirius.”
“What a friend you are, throwing me away like this,” Sirius feigned a puppy look. “Despite the amazing times we had.”
Lily didn’t melt and glared at him, standing with her arms crossed under her mounds, “We’ll have plenty more opportunities.”
So that wasn’t our last? I like the sound of that! Sirius thought, feeling delighted that she was now accepting their weird relationship.
In time, he kick-started his old motorbike and waved goodbye before driving off. He took a turn to the main street of the old dirty town and used it as a runaway. It was quite noisy at that time of the night, and before anybody could shout at him, he wore his goggles.
“Here we g—” He paused mid-sentence as a few figures appeared before him, “Severus?”
“Black.” Severus Snape, in black robes, sneered.
“If it isn’t the famous Sirius Black?” Just then, a tall, blonde man walked ahead of the crowd of men. “I heard something interesting from your father recently.”
Sirius cursed under his breath, having to act like a pureblood supremacist to protect his claim on the Black inheritance, “You heard it right, Lucius.”
“It’s Lord Malfoy now.” Lucius Malfoy proudly said, his face always brimming with a diplomatic smile. “But you may use the first name—we’re going to be family, after all. Narcissa and I will be married soon, and it’s wonderful to know you’ve returned to the right path.”
She agreed to marry this snob? Is she blind? Sirius wondered as he considered Narcissa the smart one out of all his sisters.
“Congratulations, Luci—”
“What are you doing here?” Snape interrogated.
Sirius pulled out the book he got from Lily, “Evans promised to give me this book, so I came to get it. Besides, she’ll soon be a Potter. It’s better to sow the seeds now than regret it later.”
Quite literally. He didn’t say that part out loud.
Lucius smiled widely, liking Sirius’ wicked planning, “Wonderful! Say, would you like to join us tonight? We were on our way to a special gathering of ... like-minded people. If any, you’d understand how important it is to our kind that we keep strong social connections with each other.”
Is this fool offering to show me all the fools I need to be wary of? This is great!
“Why not? I was going home anyway.” Sirius got off his motorbike and parked it at the side.
“Hold this.” Lucius raised his noble stick.
Woosh!
Instantly, they all apparated away. It was likely a secret underground location, as Sirius found no windows anywhere after arriving. His first instincts screamed that this was the devil’s den. But he composed himself and looked around. The place was filled with people, and there were plenty of big names from the side of the world he disliked.
Lucius quickly led them to a section of the underground hall, “Narcissa, look who came along.”
She’s here too? Sirius wasn’t shocked but slightly amused by her presence.
He stared at her face, and she did the same. She was wearing a black long skirt, tight around her hips, that accentuated her figure. On top, she was wearing a form-fitting white shirt with an old-style flowery pattern around the neck. Her clothes were meant to seem alluring from the looks of them, as her fit curves were quite charming. Her face was perfect with light makeup, red lipstick, and her loosely tied hair.
“Why don’t you show him around? Introduce him to some of the members before ‘he’ arrives?” Lucius suggested.
Narcissa wasted no time and walked away with Sirius by her side. She spoke only after they were a distance away, and her manner of speaking seemed suppressed, “What are you doing here, Sirius? You hated such gatherings.”
Sirius scoffed, playing his part, “Consider that willful ignorance, Narcissa. But I couldn’t ignore my duties anymore as heir to the House Black.”
“Heir? The inheritance! Is that why you’re acting?!” She confronted him.
Sirius shrugged and led her to a secluded corner, “No, I couldn’t care less about money. Influence—that’s the real treasure of the Black Family. And I couldn’t stand aside and watch as my family is slowly corrupted, lured away to be used by others—my little brother bullied and forced to do things he doesn’t want to do.”
“We’re not family anymore,” Narcissa pointed it out to him. “The blood we share is thin, and we need no protection from you.”
Sirius scoffed and decided to head to the side, away from her. “Whatever you say won’t change my mind. I’m in all this as long as my family isn’t hurt—once they’re thrown to the frontlines to die as pawns, I’ll do what I must to protect what’s mine.”
“Walburga won’t let you become the Lord of House Black, Sirius. She doesn’t trust you.” Narcissa warned him before he left.
Sirius just laughed and waved without looking at her, “We’ll see. Oh, by the way, congratulations on your engagement to your ‘dream guy’ Narcissa.”
Wanting to eat and drink something good, Sirius went to where the food was and ate to his heart’s content. Not many were near him since everyone was more interested in making ‘connections.’
“Ugh—There’s a fly in here,” He annoyedly swatted his hand around while eating. “Better go somewhere alone and contact them secretly.”
Sirius placed the plate back and looked around to find somewhere secluded. Soon, he noticed a path leading to the bathroom, so he headed there. Once inside, he entered an enclosed stall and took out his wand.
“Alright ... Let’s see...” He mumbled. “ ... stupify.”
Abruptly, he cast a spell in a hushed voice. He hit a very tiny target, a little beetle from the looks of it. Wasting no time, he used transfiguration to turn the toilet paper into a small glass bottle. Then he carried the beetle inside of it.
Can’t say coming here wasn’t fruitful. I caught something quite nice. He left the bathroom and began looking around for a way out.
It took him quite some time, but he eventually exited the underground hall by following the house elves. He climbed the stairs and left the building quickly, only to realize he was at Malfoy’s mansion.
Tick! Tick!
“Oh! You’re awake?” Sirius felt the small glass jar move in his pocket. “Don’t worry, I’ll soon release you—sneaky pest.”
Sirius quickly used apparition to arrive at Diagon Alley. It was late at night, so all the shops and streets were deserted. But he entered one building and a particular locked office room inside. After turning all the lights on in the room, he took out the glass jar and opened the cap.
The beetle instantly jumped out and began to change form. Slowly, it grew bigger and bigger, eventually appearing humanoid. After a few seconds, a blonde woman in a silky dark blue dress stood there, panting for some air.
“Why did you do that...” The woman cried out and coughed.
Sirius poured some water into the glass on the table and pushed it to her, “What do we have here? A Daily Prophet junior journalist, an illegal animagi, entering the private party of the pureblood supremacists? If word got out—Not even your hair would be left in this world.”
“NO!” She yelped. “Don’t tell them, please! They’ll kill me. I-I’m Rita Skeeter, I can pay you for...”
“Money? Haha, I’m Sirius Black. You think I need money?” Sirius casually sat in the wooden chair and placed his feet on the table. “So, did you find anything interesting in there? And before you say anything, remember, your life depends on a single word from me.”
Rita Skeeter stood beyond the table, her body shivering in fright. Being caught as an illegal animagi could send her to Azkaban, and being caught by purebloods could send her to death. “I-I heard ... t-the Dark Lord was going to address the gathering.”
I escaped on time then. Sirius sighed with relief in his heart.
“What else?” he questioned.
“I heard about a plan.” Rita slowly began to regain her composure. “T-they talked about starting their plan to eradicate blood traitors and mudbloods. They are going to attack and kill—I couldn’t find out about anything else. Please, believe me. I’m just a new hire. I was only looking for a big story ... I won’t tell anyone, not this story!”
Sirius hummed and stood up. He stepped around the table and began to walk around Rita while taking her form in his gaze.
She was somewhat older than him but quite a beauty. Her blonde hair, an oval face, and that full body of hers were hidden underneath the tight dark blue dress. The black stockings underneath as well—it was quite alluring. But the most unique part was her glasses, which she kept below her gaze.
He walked behind her and saw her wide, soft hips screaming to be freed from her tight skirt. Stepping in front of her, he noticed the hills on her chest, similar to her behind—begging to be released.
This is on you, Lily. You should’ve let me stay. Sirius made a convenient excuse for himself.