" Her hair was pulled into a high ponytail high on her head, with unkempt bangs feathered over her brow and ears. She looked like she hadn't given a passing thought to her hair or clothes that day, maybe ever. She was pretty, but not exceptionally so. Not noticeably so, until you bothered to look.
Kai realized, with some surprise, that he was looking.
Which was how he noticed a splotch of grease on her brow, half covered beneath her bangs.
Another laugh caught in his lungs.
It was so endearing, and such a far cry from the perfectly coiffed and bejeweled girls who he normally met, that it made his fingers itch to reach across the table and rub it away.
He scolded his fingers. He scolded himself. He needed to pull himself together. "

― Marissa Meyer , Stars Above (The Lunar Chronicles, #4.5)