Normally I adore skinny girls but this is verrry hot. I am going to insist that this girl LOVES to be tickled at least on her feet. If you'll notice although she struggles she's careful not to do anything that would really stop the ticklers, and if you watch in the first part when her feet get free from hillary she isn't quick to pull them away, they kind of linger and she has a sort of disappointed look like "aww that's it?"
I could be wrong but that definitely didn't look like someone who hated when that happens.