Buffy climbs in her window one night, carrying a backpack.
"What you been doing?"
She freezes, then realises it isn't Mom. And her lips go tight and she says, "None of your business."
"Have you been out with a boy?"
"Go to bed, Dawn."
Dawn ignores her and sits on the bed. "Why did you break up with Tyler, anyway? I liked him."
"Go to bed."
"I don't like your new boyfriend – even if he does have a motorcycle."
Buffy stiffens. "How do you know about him?" she asks quietly.
"I saw him yesterday when he dropped you off. Why did you break up with Tyler? He was cute."
She says nothing – just keeps putting things away in drawers that Dawn's so going to check out later.
"Have you been going out with him every night? I bet Mom and Dad wouldn't like that. I bet they'd be really mad about you sneaking out to see a boy. I bet–"
"Is he why you cut your hair? I thought it looked better long."
"Why do you keep sneaking out your window to see him, anyway? That's really dumb. Mom wouldn't–"
"Shut up, Dawn. And don't you dare tell Mom. This never happened, okay?" She presses a candy bar into Dawn's hands. "It never happened."
Five years later, Dawn learns that, actually, it never did happen.
And she cries for lost moments and candy bar blackmail.