"Deal." She reached out and shook his hand, already planning on this being the big year for fun and trouble, and maybe a few calm days thrown in there to keep Otto on his feet and just enjoy being around him for awhile.
"Glad I can keep your life constantly interesting. I wish you would've been put in Slytherin, we could've kept things interesting all the time." But he probably would've gotten sick of her by then.
"Damn straight I would. So watch your shirts. I'm sure I can find a nice juicy one to stick down it at breakfast one of these days." Probably in a week or two when he'd forgotten about this conversation and she could get close enough without him being paranoid. Maybe she'd make it larger than normal too with an engorgio charm.
"Oooo so scared." She pretended to shiver and laughed. "Then I'll just pretend you didn't say anything because only three people are ever allowed to use that name and sadly, you are not one of them.' But that didn't stop him... or her brother in doing it.