While I genuinely like the middle name of Luna for Harry's daughter (See chapter 3), this chapter offers an AU with a different middle name.
Harry Potter knew that his Aunt Petunia had one major regret.
Petunia had fallen out with her sister Lily when Lily was eleven because she was jealous of Lily's magic and their parents had favored Lily with Lily lapping up the attention. There was legitimate blame on both sides, but the bottom line was that the close bond the Evans sisters once enjoyed broke once Lily had gone to Hogwarts.
Lily, who was Harry's mom, had died to protect him. Lily had sacrificed herself by refusing to step aside for Voldemort to kill Harry even when Voldemort was willing to spare her.
Lily had died without the Evans sisters having ever reconciled and Harry knew that this fact haunted Aunt Petunia.
Harry could vividly remember what Aunt Petunia had told him on the night they had parted ways: "You didn't just lose a mother that night in Godric's Hollow. I lost a sister."
This quote had stuck with Harry as it had really put in perspective for Harry how deeply hurt Aunt Petunia had been that her sister had died estranged from her.
Harry knew that Aunt Petunia deeply regretted her broken relationship with Lily, and he knew that she was tormented by the fact that Petunia and Lily would never be able to talk things out and reestablish a relationship.
These thoughts were at the forefront of Harry's mind as he thought about how he would name his daughter.
Harry never had any doubt that he would give his daughter the first name of Lily after the mother who had sacrificed herself for him and saved the Potter line in the process.
But, up to this point, he hadn't thought much about the middle name he would bestow upon his daughter.
However, his daughter was due in a fortnight, and it was time for him to make a decision on the matter.
What would be the best middle name to pair with the first name of Lily?
Harry sat in his bathtub as the bubbles and hot water washed over him.
Harry reflected on Lily's life and then it came to him: He should give his daughter the middle name of Petunia so that her full name would be Lily Petunia Potter.
It was the perfect tribute to Lily.
Lily and Petunia back together again, even if only in a name with the last name Potter reflecting the line Lily had saved.
Petunia had never exactly treated Harry very well, but Harry had forgiven her after learning her backstory.
Perhaps if Lily had lived, Petunia would have reconciled with her once they were into adulthood a bit.
Petunia's jealousy over Lily having magic when she didn't was petty, but understandable for a child.
Perhaps they'd have made up when both had grown up and matured a bit. It was impossible to know now.
By naming his daughter Lily Petunia, Harry was both expressing his forgiveness for Petunia while bringing the Evans sisters back together if only in the small way of a name.
Lily and Petunia side by side as first and middle name represented the kind of relationship they should have had and perhaps could have reestablished if Lily had lived longer.
Harry knew that it would mean a lot to Aunt Petunia to have her name and her sister's name side by side in the name of Harry's daughter.
Harry's heart glowed with warmth as thought of the day that Lily Petunia Potter would come into the world.
"Mom, and Aunt Petunia," said Harry to himself with his insides filling up, "This is for you two. My daughter shall bear the name Lily Petunia Potter."
The next day, Harry returned to Number Four Privet Drive for a visit with Aunt Petunia.
After making the decision to name his daughter Lily Petunia Potter, Harry sent an owl to Petunia asking for a one on one meeting the next day and Petunia had invited Harry to come to Privet Drive while Vernon was at work.
Harry rang the doorbell and awaited the answer.
"Hi, Harry," said Petunia politely as she opened the door and let Harry in.
"Hello, Aunt Petunia," returned Harry graciously, "I have news, but this news will also require us to have a bit of a talk."
"Then let's go sit on the living room sofa and be comfortable," replied Petunia.
So, Harry and Petunia walked together to the living room and sat down side by side on the sofa.
"So, " explained Harry, "My third child and first daughter is due in about a fortnight."
"Have you selected a name for her yet?" inquired Petunia.
"That's exactly the news I've come to deliver, but we need to talk first," confirmed Harry.
"Fire away, Harry," piped up Petunia encouragingly.
"Something you said to me on the night I left here has stuck with me. I vividly remember you saying that, "You didn't just lose a mother that night in Godric's Hollow, I lost a sister," said Harry softly.
"That is actually why I never treated you particularly well while you were growing up here. I hated your magic because I felt as though the Wizarding World had stolen my sister from, first figuratively, and then literally," admitted Petunia.
"I have long suspected that you felt that way," said Harry in a crystal clear voice, "I know that the greatest regret of your life is that your sister died with the two of your estranged."
"Exactly," nodded Petunia instantly, "Lily and I had a great relationship before Lily went off to Hogwarts. Both Lily and I bear equal responsibility for the falling out. But, if I may be candid, the deepest and most desperate desire of my heart is to meet my sister again and make amends with her. If she hadn't died so young, that probably would have happened. I legitimately believe we would have forgiven each other as we matured into adulthood if Lily had lived."
"Aunt Petunia," said Harry looking her eye to eye, "I have forgiven you for how you treated me when I grew up were. Your feelings are completely understandable, and you had valid reasons to not desire my presence here. You are a realistically flawed person who has made honest human mistakes, but you are not a fundamentally bad person. Now, here's the big news. I am naming my daughter Lily after the mom who sacrificed her for me and saved the entire Potter line into the bargain."
"That's not news," said Petunia seriously, "The only potential news comes from the middle name."
"You just hit the reason I'm here," said Harry sincerely, "I shall bestow upon my upcoming daughter the middle name of Petunia. She shall be called Lily Petunia Potter."
Aunt Petunia felt a swell of emotions wash over her upon hearing that news. She felt tears coming down her cheeks that were one third joy, one third terrible sadness, and one third pure emotion.
"Oh, Harry," said petunia heavily, hugging him tightly.
"Aunt Petunia," said Harry matter of factly, "I saw this as an opportunity to bring Lily and Petunia back together again, even if only in a name."
"I-I am v-very touched b-by this tribute Harry," acknowledged Petunia in a choky type of voice, "It's a representation of how important Lily and I were to each other, even if we both too immature to realize it."
"I haven't told anyone else, " promised Harry, "I wanted you to be the first to know. You are, for obvious reasons, the person who has the keenest interest in the decision I have made to name my daughter Lily Petunia Potter."
"I appreciate that," spoke Petunia in a low voice, "I hope to meet little Lily Petunia and hold her."
"I will give you that opportunity," promised Harry, "As she grows up, I hope that Lily Petunia Potter comes to understand and appreciate why I have named her the way I have and who and what I am paying tribute to."
"That Lily died with us estranged is my worst regret in life," admitted Petunia, "We'll never know what would have happened, but the fact Lily died so young is just so tragic. Even more so for you as there is no worse tragedy than a child losing a parent."
"It's worth noting," said Harry matter of factly, "That despite having taken me in unwillingly and bitterly, you still took me. Dumbledore told me that you know that taking me in may have saved my life."
"I had just enough sisterly affection left for Lily to take her son in to protect from the possibility of death," said Petunia quietly, "But too much bitterness to be able to treat her son well."
"It's totally understandable, " said Harry briskly, "You have feelings too. You're not a bad person. You're a realistically flawed person who made understandable human mistakes. Not unlike Lily herself."
"I'm grateful for your understanding and forgiveness," declared Petunia, "And I'm more grateful for the fact that you are going to bring Lily and Petunia in one the few meaningful ways possible."
"That's not the only way I'm going to bring them back together," Harry informed Petunia, "I have a gift for you."
Next nanosecond, Harry retrieved his wand from his right hand pocket with his right hand and pointed it straight ahead.
"Flowericus!" cried Harry.
And two bouquets of flowers emerged from the tip of Harry's wand.
One was a set of red Petunia flowers, and the other was a set of red Lily flowers.
"Aunt Petunia," said Harry genuinely, "These flowers are a gift from me to you. You can set them downside by side in whatever vase you have available."
Harry handed Petunia the flowers and she was left speechless.
"And before long," finished Harry, "Lily and Petunia will be together again yet again in the name of my daughter to be, Lily Petunia Potter."
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