Kayla

“You're the first Shadowhunter I've ever met."
“That’s too bad,” said Jace, “since all the others you meet from now on will be a terrible letdown.”
― Cassandra Clare, City of Fallen Angels

“Aren’t they supposed to be hiring someone else to train me full-time anyway?”
“Yes,” he said, getting up and pulling her to her feet along with him,“ and I’m worried that if you get into the habit of making out with your instructors, you’ll wind up making out with him, too.”
“ Don’t be sexist. They could find me a female instructor.”
“In that case you have my permission to make out with her, as long as I can watch.”
― Cassandra Clare, City of Fallen Angels

“You're just worried they'll hire a male instructor and he'll be hotter than you."
Jace's eyebrows went up. "Hotter than me?"
"It could happen," Clary said, "You know, theoretically."
"Theoretically the planet could suddenly crack in half, leaving me on one side and you on the other, forever and tragically parted, but I'm not worried about that either. Some things," Jace said, with his customary crooked smile, "are just too unlikely to dwell upon.”
― Cassandra Clare, City of Fallen Angels

“That's why when major badasses greet each other in movies, they don't say anything, they just nod. The nod means, 'I' am a badass, and I recognize that you, too, are a badass,' but they don't say anything because they're Wolverine and Magneto and it would mess up their vibe to explain.”
― Cassandra Clare, City of Bones