I'm doing a Harry/Ginny fanfic, but their lives after Hogwarts... like, 23 years later.
Here's the beginning... [It starts with a memory]

“Take my hand,” she slowly muttered under her breath. Her scent flowed seamlessly through the room, and at last, seemed to touch Harry before disappearing again.
A beam of sunshine flew in through the window, zigzagged up a mahogany cupboard, before turning into dust and disappearing into nothingness.
Harry slowly proceeded, leaning forward and extending his hand, placing it gently on hers. This was the most peculiar feeling he ever had… it felt like he placed his hand on something gentle, warm, and protecting.
She turned to her side, muttered something to the door, which revealed itself. Intricate patterns were carved on the door, and the sound of the turning doorknob cut through the silence with a knife.
They both stepped inside, their hands still intertwined, as Harry looked around.
“Where are we?” he said with an edge to his voice.
“The Room of Requirements, Harry. You said you wanted some time out from everything going on out this door,” she replied with a smile.
“Yes, alright,” he returned the smile.
To explore around the room, he accidently nearly broke apart the connection between them, but realized that her grip was even tighter now.
Her lips slowly moved, but it seemed a while for words to come out of her mouth.
“Don’t let go…” she said calmly, trying to synchronize with the silence.
“I’m sorry,” was all he could blurt out, but before long, he noticed that she was slowly coming closer.
Closer… Closer…
It felt like the room was squeezing, like everything was shrinking, as if everything was dissolving around them as she leaned in slowly. It would have been a day, maybe a year, as time seemed to have stopped…
Harry was still trying to figure out what was going on, but she was as close as she could get.
She got a hold of his waist, and Harry replied with the same gesture, getting a grasp of her waist.
And before he realized what happened, her cold lips pressed gently against his. He moved his hand up to the back of her head, and pressed his lips back with just as much enthusiasm.
They might have stayed in that position for years, as Harry had absolutely no idea about what was going on around him.
Still, they were united, peaceful, together, intertwined… it felt like the universe was a whole, that everything was perfect, that sadness never existed.
It felt like they would never grow apart, as they both kept their lips pressed against each others.
Finally, she slowly separated from Harry and gave him a smile.
“Ginny….”
“I hope that got your mind off everything going on, Harry,” she replied before Harry could finish his question.
“It did,” he smiled back.
“I need to leave now, Harry, time for Potions,” said Ginny.
“I’ll come with you,” Harry replied and bent down to get a hold of her hand.
In unison, they walked out of the Room of Requirements, wearing smiles of their faces, their hands connected, as they walked through the corridors of Hogwarts.

Comment if you want more.
It kinda sucks, I know.