I'm using the canon next generation with two changes: George married Katie, not Angelina, and Scorpius has a younger brother (Rigel).

Chapter 1
Future?

December 3rd, 2029

When Al opened the door, Lily burst into laughter. She couldn't help it – the day had been hard, customers pickier, slower and noisier than ever before, the whole world just too cold and grey and December for her.

"Nice hair", she managed to say in the middle of her nearly hysterical giggles.

Albus, whose usually black hair was now bright pink, wasn't amused. "Are you coming in or not?" he snapped.

Lily wiped tears from her eyes as she stepped in. "So Violet has done some accidental magic again?"

"I wouldn't use the word accidental", Al said grouchily, picked his four-month-old daughter from the floor and handed her over to Lily. "All was well and we were both happy until I dressed her in pink. She's definitely taking after her mother."

Lily rolled her eyes as Al started to change his hair back to black. Little Violet drooled on her new set of robes, but Lily found she couldn't care – her day in Silk & Stocking, the clothing store where she had worked for two years, had been too long, too exhausting. It was good that Vivi, at least, could do what she wanted.

Al and Poppy's house was small and so full of things that Lily was constantly worrying about knocking something over. She sat down to an old, green armchair and prayed Vivi wouldn't start to cry. Two things she couldn't handle right now were crying relatives and future.

Al, his hair black again except for one pink stripe at the back of his head (Lily couldn't bear to mention about it), brought her a cup of coffee and smiled.

"How are you doing, sissy?"

"Fine", she answered automatically, without really thinking. And she was fine, really. It was no use to tell Al about how she dreaded the New Year's day and the following year. 2030. In August she would be twenty-two. It was much more pathetic to be a 22-year-old without a plan than it was to be 21-year-old who was still trying to find her place.

Perhaps she could travel a bit next year. Or get a boyfriend. Or maybe she could do the one thing she really desired – resign. But not before she had figured out what to do with her life. It shouldn't be that hard, everyone else had managed to do so. Why, Nancy was only a year older than she and had already mapped out the rest of her life!

Al looked at her doubtfully and Lily rushed to continue. "I am really. It's just so hard to find good Christmas presents to you all – like Jimmy, I've never found anything for him. What do you think I should give him? And –"

She babbled on nervously and Al kept giving her those funny looks, but at least he didn't say anything. Lily was grateful for that. Besides, she would get over this – this feeling, whatever it was. All she needed was a little change.