J.k. Rowling said this quote

That's what yer little sister said,' said Hagrid, nodding at Ron. Met her jus' yesterday.' Hagrid looked sideways at Harry, his beard twitching. 'Said she was jus' lookin' round the grounds, but I reckon she was hopin' she might run inter someone else at my house.' He winked at Harry. 'If yeh ask me, she wouldn' say no ter a signed-''Oh, shut up,' said Harry. Ron snorted with laughter and the ground was sprayed with slugs.