"It's real for us," said Snape. "Not for her. But we'll get the letter, you and me."
"Really?" whispered Lily.
"Definitely," said Snape, and even with his poorly cut hair and his odd clothes, he struck an oddly impressive figure sprawled in front of her, brimful of confidence in his destiny.
This is from the Prince's Tale chapter in Deathly Hallows, when Snape and Lily are kids and she's just found out she was a witch. I was putting off doing a DH quote, because it would have to have been from The Prince's Tale, and I knew I was gonna cry. If I had done a Snape quote not from the Prince's Tale, it would be even sadder... :'(
But I love this quote so much, because when he says "It's real for us," for me, it outlines the entire fandom of Harry Potter. Plus, It's a major part of their relatonship, and is just really sweet. :)
And of course he strikes an impressive figure! He's Severus Freaking Snape... Even as a kid, he was hot. He didn't even need clean clothes or hair, because the dirt just enhances his sexiness. And "sprawled in front of her" makes it sound like they're lying down... Oh, how I wish I could lie down with Snape. :D