"And you're young," he pointed out. "And you're my favorite person. So maybe younger people are cooler."
"And when we grow older," he continued reasonably. "Then older people will be cooler than younger people."
"Huzzah," he agreed quietly, looking down at her with an adoring smile. "Although I feel like you would keep your cleverness even if you grew old. Are you planning on becoming senile?"
"I mean, if you could avoid it, that'd be great," he said, giving her a cheeky smile. "But I'd still love you, regardless."
He brushed her hair out of her face as she kissed him, his fingers soft and careful. "I love you too, Av."
"Been kind of disappointed, but I suppose I would have understood," she said, her fingers delicate as they brushed his neck.