A/N: All credit goes to Phantom Sirius Black. This very helpful person gave me the ideas so basically I don't even own the plot.
She looked nervous. She was standing at his gate wondering whether to go or to leave it. She shook her head. How hurt would Sirius be if she didn't tell him now? She walked slowly up the path and knocked on the door. A couple of seconds passed, then Sirius came to the door.
"Lily!" he cried.
"Hi." She said softly. "Can I come in?"
"Yes. Of course," He let her go past him. She made her way into the sitting room.
"Are you ok?" Sirius asked worriedly.
"I'm pregnant." She blurted out. She looked up at him. His expression was a mix of horror and confusion.
"Is it…?" He began.
"No. It's James'. That's why I've come here, Sirius. We can't go on like this."
"But Lily" he tried again.
"No," she stood up, trying not to cry. "It's got to stop. I'm sorry." She left the room, left the house and apparated home. Sirius ran after her but it was too late. She was gone.
He stood in the doorway staring at where she had been. "It's not over, Lily." He said softly, "One day…"