For a moment she looked startled and then she laughed, a delighted sound. "It do be being a curse word you do be meaning?" A curse word she hadn't heard, she thought she knew them all!

It's good to know that mister Stark would get angry if she cursed though, useful information. Also his panic is funny, he looks so silly just like when he made stupid mouse sounds.

"Be calming down." She laughed again, "I will no be saying it where he can be hearing." Grounded was punishment then? And Peter was scared of mister Stark's anger. All good information to have.