Disclaimer: I don't own Harry Potter, yadda yadda yadda, any character from the series, yadda yadda yadda, whatever.
Removing Dudley From the Equation – Year 2
Chapter 1 – The Birthday
Vernon Dursley and Sirius Black were at Diagon Alley. "Thanks for agreeing to help me choose a broomstick for Harry, Sirius." Vernon commented.
"It's a pleasure to have a hand at the choice of Prongslet's first broomstick, Vernon." Sirius happily replied. As they were heading towards Quidditch Quality Supplies, they noticed a sign at Flourish and Blotts announcing Gilderoy Lockhart's autobiography, titled "Magical Me". The day the book will first be available for sale, Gilderoy Lockhart will be there for an autograph session.
"Vernon, make sure this won't be the day we come here to buy the materials Harry will need for his second year." Sirius advised him. "The place will be crowded by his fans."
"Duly noted, Sirius." Vernon replied and then he and Sirius entered Quidditch Quality Supplies. There, the clerk easily recognized Harry Potter's Godfather. Who wouldn't after he made the news for being cleared from a decade-long wrongful imprisonment? "May I help you, Lord Black?" He eagerly asked.
"Yes." Sirius answered. "Vernon and I were looking for a broom for my godson Harry Potter."
"The Nimbus 2001 is the latest model ever put on market, Lord Black!" The clerk gladly replied while showing a model.
"What makes it better than a Nimbus 2000?" Vernon asked.
"It's faster!" The clerk explained. The look on Sirius' face made the clerk sure he made a sale.
Later on, at Number 4, Privet Drive, Vernon and Sirius were telling Petunia about their ride to Diagon Alley. "Where will we hide the broom until Harry's twelve?" She asked. "It doesn't fit the cupboard under the stairs."
"We'll hide it at the guest room." Vernon suggested. "How likely it is for Harry to get in there?"
Time skip to July, 31st, 1992
Because Vernon and Petunia had to entertain guests at a business dinner that night, they celebrated Harry's birthday earlier that day. The three of them and Sirius Black went to a park. There, Harry enjoyed all rides appropriate for his age and then they went back home, where they enjoyed a cake baked by Petunia. "Harry, remember what we said about you behaving well through your first year?" Petunia asked.
"Yes, Mum." He answered. "If I did, you'd give me a broom for my birthday."
"Ta-da!" Sirius exclaimed while showing him a Nimbus 2001. "I helped them to choose it."
Harry eagerly got it. "Thank you! Thank you! I'll fly it right now!"
"Noooooooooo!" Vernon and Petunia shouted, shocking Harry and Sirius.
"Why not?" Sirius moaned.
"This is a 'muggle' neighborhood." Vernon explained. "The neighbors mustn't be allowed to see anybody flying at a broomstick. Statute of Secrecy, remember?"
"But don't worry, sweetie." Petunia added. "You're visiting the Weasleys this weekend and will be able to play there."
"Now open mine, Prongslet!" Sirius eagerly asked while showing another package. Harry then opened it. "Cool! A broom servicing kit!" Harry exclaimed in joy. "I've been wanting it ever since Mum and Dad gave me a broom!"
Sirius Black still didn't feel comfortable with Harry considering people other than James and Lily his parents, especially muggles who used to hate magic in the past, but decided not to speak against it since they're raising Harry better than expected. "I knew you'd like it, Prongslet!" Sirius happily commented. "A well-kept broom lasts longer."
The next morning, Sirius and Harry were readying themselves to go to Ottery St. Catchpole. "Prongslet, wouldn't you rather use your new broom to fly?" Sirius asked. He really wanted to see how much Harry would resemble his birth father while riding a broom.
"Be careful, Uncle Sirius." Harry whispered. "Mum and Dad don't even suspect you intend to fly us in the first place."
"I still don't know why they won't connect their fireplace to the floo network?" Sirius moaned.
"They're not that comfortable with magic." Harry explained. "Either way, it's illegal to connect fireplaces of muggle homes to the floo."
"Bummer."
Later on, they were flying to Ottery St. Catchpole. "Ever flew like that before, Prongslet?" Sirius asked with a smile.
"Aside from the flying lessons last year and the plane trip my parents and I took two years ago, I never flew before." Harry answered.
"Prongslet, you'll have a whole new flying experience at the Weasleys'." Sirius sternly (as stern as a Marauder can be anyway) stated.
"Uncle Sirius, Ron told me it's against Wizarding Law to enchant muggle vehicles to make them fly and his Dad works at the Ministry department in charge of enforcing laws about muggle objects." Harry said in worry. "Aren't you afraid he'll fine you?"
"The law against making muggle objects magically able to fly isn't retroactive and the charm enabling this motorcycle to fly is older than it." Sirius explained with a malicious smile. "I should know since I was the one who cast it."
"Sirius, the law was passed a few months before you were released from… oh!" Harry exclaimed.
"Exactly, Prongslet!" Sirius exclaimed. "I had it from way back."
They then arrived at the Burrow. (The Weasleys' home) "SIRIUS ORION BLACK!" Molly Weasley shouted in anger. "DON'T YOU KNOW IT'S ILLEGAL TO ENCHANT MUGGLE OBJECTS TO MAKE THEM FLY?"
"That law isn't retroactive, dear." Arthur meekly replied. "He enchanted the motorcycle before his wrongful imprisonment."
Ron then came out running from the house. "Harry, did your parents give you a broom like you said they'd give?"
"Yes, Ron!" Harry eagerly answered. "And uncle Sirius gave me a broom servicing kit." He then showed broom and kit.
"A Nimbus 2001? Mate, those had just entered the market!" Ron exclaimed. "Harry, I hope you plan to become Gryffindor's new Seeker. We simply need something better than McLaggen."
While Harry and his friends were having fun, they didn't even suspect those day wouldn't be necessarily long-lasting. "I'm glad you found me, Barty." Voldemort said as Bartemius Crouch Junior found him at an Albanian forest.
"Anything for you, My Lord." Crouch Junior replied.
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