Alec had his arms around Magnus and was kissing him, full on the mouth. Magnus, who appeared to in a state of shock, stood frozen. Several groups of people- Shadowhunters and Downworlders alike- were staring and whispering. Glancing to the side, Simon saw the Lightwoods, their eyes wide, gaping at the display. Maryse had her hand over her mouth.

We all change the world, with every day of living in it - Magnus Bane

The way Magnus’ breath had sounded, rattling in his chest, before he’d said his father’s name.

That was vampires for you: always going for the jugular, both literally and metaphorically. They were messing up his love life as well as being inconsiderate party guests who had got blood in Magnus’s stereo system at his last party and turned Clary’s idiot friend Stanley into a rat, which was just bad manners.

I think,” Jace said, “that you don’t want to tell your secrets, so you decided to break up with Alec because...

The posters bore the words WITH THE PASSING YEARS COMES...IMPOTENCE! Magnus found himself staring at the posters with a sort of absent horror. He looked at Alec and found that Alec could not tear his eyes away either. He wondered if Alec was aware that Magnus was three hundred years old and whether Alec was considering exactly how impotent one might become after that much time.

Happy birthday, Alexander," Magnus murmured."Thanks for remembering," Alec whispered back.

I don't know why I ever helped you.""You like broken things.

Magnus, you were trying to flirt with your own plate.""I'm a very open-minded sort of fellow!