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.