Before Harry, before Godric's Hollow, before the Dark Lord was defied three times... Lily Evans and James Potter discovered that neither of them were what the other had expected, and embarked on a relationship that would change the world as they knew it.

Twice in their lives, James told Lily to run.

Sirius wasn't looking for a new best friend, but James was now spending all his time with his new girlfriend. Sirius was the one left behind, and I was the one he found. And neither of us expected what we found in each other. JamesXLily SiriusXOC

What if Peter Pettigrew had never betrayed the Potters? What if Lily and James had lived to see their son to Platform 9 3/4?

"I think you're an arrogant, selfish pig, and I think you'd be doing both of us a favor if you just left me alone!" Potter stared at me for a moment, an unreadable expression in his hazel eyes, before uttering a single word: "Okay." J/L, Lily's POV.

Potter was going to say that he wasn't my boyfriend. I couldn't let him do that. For the love of Merlin, I could not let him do that. I had to stop him. He couldn't tell her the truth. So I did the only conceivable thing I could think of. I kissed him.

The night the Potters died, Sirius Black lost everything.