"Yes, in my handwriting," she agreed. "But what more would people expect? I've been organising both you and Harry for years." Shaking her head as Ron remained amused at a joke she really didn't get, Hermione gave a small shrug. "Oh, don't worry about the money. It's fine."
Following Ron toward the drink table, she picked up something that looked nice, though she wasn't quite sure what it was. Turning slowly at his little outburst, she took a sip and then glanced in the same direction he was currently looking.
"Ginny is wearing a costume," she informed him. "Much like your costume really, and I think she could quite possibly say the same thing about you." Hermione gave Ron a pointed look, then poked him in the bare chest. "So, you will just leave her alone, and let her have fun."