Credit has to go to Steph for giving me this hilarious idea.
"There are a lot of things you don't know about me, James." He shrugged, his arms around her.
"Like what?"
"Mate, she's got a point," said Peter, too quiet for Lily to hear. James elbowed him, keen to hear what she had to say.
"Like the fact I once had a goldfish, and I accidentally killed it by pouring chocolate milk into his tank." Sirius burst out laughing, and her cheeks coloured.
"It's not that funny! James, control your dog."
"Only if you tell me about it." He grinned, amused.
"There's nothing to tell! I was five, and Petunia told me the fish looked hungry. I tried standing on a chair but I couldn't reach the fish food. So I thought he might want some of my chocolate milk." Her voice grew quieter, and she mumbled the last words into James' chest, trying to hide her face, which was bright red.
"If that's your track record with pets, it's no wonder you've never had an owl," said Remus, trying to sound reasonable despite the grin on his face.
"James," she whined. "Tell your 'friends' to stop laughing at me."
"I'm laughing too, it's the funniest thing I've heard all day." She poked him in the ribs, hard.
"Maybe I'll get another fish and call it Potter. And kill it on purpose this time," she muttered, smirking.