It was night time and Eva and I had been into the city to register her. She'd told me it was her birthday, and I had brushed the idea aside then, but it kept coming back to me. A birthday. What would it feel like, to have one? I turned to her in the darkness.

"Hey, Eva?"

"Yes, Hailey?"

"What does it feel like, to have a birthday?"

"Oh, it feels... I don't know, wonderful. You get presents and then you eat your favourite meals and you get attention. It's fantastic."

"Wow. I wish I remembered my birthday. Even my omnipod doesn't remember what it is. I asked it earlier."

"Well, how about your birthday be today, on the same day as mine."

"I think... I think I'd like that very much." Then she leaned forward and hugged me. I was really surprized.

I leant forward and kissed her cheek. "Happy birthday, Eva."

"Happy birthday, Hailey."