Idea came from shroomy-eyes

Ever since she had been born, her favorite thing in the entire universe (other than her best friend) had been unicorns. She had unicorn stuffed animals, a unicorn bedspread, and countless other things.

Even as she grew older, and she became a teenager and started going to Hogwarts, unicorns remained her favorite thing. She couldn't wait until third year when she could start taking Care of Magical Creatures and hopefully actually see one – maybe even pet it?

They didn't begin to study unicorns until fifth year, and by then, her knowledge of them (and her collection of items portraying them) had grown impressively.

Another thing she loved? Quidditch. She was as good at it, surprising nearly everyone in the school, and had even seriously begun to consider playing professionally.

There was a game the weekend before her Care of Magical Creatures class was supposed to start learning about unicorns, and while she played spectacularly, a Slytherin beater decided to hit a last minute Bludger at her, seconds after her best friend caught the Snitch. She didn't see it coming, and as a result, ended up in the hospital wing, unconscious for three days.

By the time she was released, she had missed all of her classes for Monday, Tuesday, and Wednesday. Her boyfriend, sweetheart that he was, had diligently taken notes for her and brought them to her, helping her study to complete the assignments and catch up.

But nothing could lift her depression over missing the class featuring her favorite animal. And when she went to Hogsmeade with her best friend (instead of her boyfriend for once), he could visibly see her distress. Since she was little he had promised both himself and her that he would always have her back and would do whatever he could to make her happy. He usually succeeded far better than anyone else in her family, some of whom could care less.

Knowing her sixteenth birthday was coming up in a month, only two days after summer holidays started, he began owling people, asking for their help. He had a plan, he just needed other people's help to implement it.

Finally, the letter he was waiting for arrived.

The school year ended – Gryffindor had won yet another Quidditch Cup, while Ravenclaw had taken home the House Cup. There was the usual flurry of turning in last minute assignments as well as groaning about the ones that were assigned over the holidays.

She was happy to be home, she really was, but still her disappointment lingered. Maybe she was being overdramatic, because yes, she had missed the lesson, but it wasn't like that would be her only opportunity to ever see a unicorn. She did her best to convince herself that there would be other chances, but a voice in the back of her head reminded her that those chances really were far and few between.

The surprise was all set up, and he was so excited. It took a little doing, but he managed to drag her away from her family and her birthday celebration for just long enough to Apparate her to a house out in the countryside. He didn't knock on the door, instead simply walking around to the back, where a large paddock stretched out so far neither of them could see where the fence line ended.

"Just wait," he told her. They both stared out into the night, looking for something that only he really knew. Slightly spooked, she slipped her hand into his and he squeezed it reassuringly.

After what seemed like forever, the soft thud of hooves could be heard, and they both turned their heads to look.

Cantering towards them was a pure white unicorn. He could practically hear her jaw drop, and she began squeezing his hand tighter and tighter, bouncing on the balls of her feet in excitement.

The unicorn came to a stop in front of them, eyeing them warily. From his pocket, he pulled an apple and handed it to her, letting her feed the creature. She released his hand and stepped forward with the apple extended in front of her. Sniffing it, the unicorn took a bite.

While it continued to munch, she stroked its mane, her delight clearly shown on her face. She turned to look at him, and he smiled as well, happy to see her happy.

"Happy Birthday," he said softly. She grinned, and reached out to hold his hand again. The apple was gone, but the unicorn stood there, content to be stroked and petted.

"Thank you James."

"Anything for you Lily."

Betcha were thinking it was Lily/Teddy, weren't you? Haha, I started writing it that way and then changed it halfway through. This one is more AU because it's more along the lines of L/J are best friends instead of Lily/Sev.
Anyway, I've started writing V, I need ideas for W,X,& Z. PLEASE! Otherwise it will take me so much longer to update!
Speaking of updates, please go check my profile and read my most recent note. Thank you!