A/N: I know it isn't canon, but I imagine Lily and Lysander to be the same age in this.
Disclaimer: JK Rowling owns all.
Ava Lily Scamander
May 20, 2032
Lily Luna Potter was always a bit of a firecracker. She believed what she wanted to believe, no matter how far-fetched it was, and would never back down from a fight, no matter how stupid it was. Some said that she was stubborn, but she would fiercely deny all of these claims, saying instead that she was eccentric. Lily knew that she had to make up her own mind in the world, stating on more occasions than one that if she didn't choose her own fate, her famous family would chose it for her. This is what, in short, caused her to become best friends with Lysander Scamander, traveling the world with him after they graduated Hogwarts.
Lysander Newton Scamander was always like his mother. Whereas his twin brother, Lorcan, was every bit as straightforward as their father, Rolf, Lysander was every bit as dreamy as their mother, Luna. He loved to spend his breaks from school searching for Crumple-Horned Snorkacks, or Freshwater Plimpies. He swears that he got bitten by one once, and will show the scar to anyone who asks. His best friend, Lily Luna Potter, goes on some expeditions with him over vacations when she is visiting the Burrow, since his house is just over the hill from her grandparents'.
It came as no shock to anyone when Lysander and Lily began dating a month after they began their tour of the world, having realized that they had loved each other since they were twelve years old. The two got married upon returning to England when they were twenty-two, and built a house on the countryside near Molly and Arthur's, as well as Luna and Rolf's.
Lily found out that she was pregnant with their only child about a year after their marriage, and Ava Lily Scamander was welcomed into the world on May 20, 2032. Ava grew up to be sorted into Gryffindor, play as Seeker on her house Quidditch Team, be every bit as dreamy and eccentric as her two parents, and have her mother's red hair but her father's silvery gray eyes.