Sarah shakes her head, less an reply to Helena than an indicator of her own thoughts. Helena doesn't remember, or Helena's doing a really good job of pretending she doesn't remember. She doesn't put it past Helena to lie to her, but her instinct says there would be some kind of tell, and the look she sees on Helena's face is sincere.

"Hey, meathead," she says, and puts an arm around her sister, trying to sound gentle. "It's alright if you don't remember."