“Because I finally can,” Sebastian said. “You’ve no idea what it’s been like, being around the lot of you these past few days, having to pretend I could stand you. That the sight of you didn’t make me sick. You,” he said to Jace, “every second you’re not panting after your own sister, you’re whining on and on about how your daddy didn’t love you. Well, who could blame him? And you, you stupid bitch”—he turned to Clary—“giving that priceless book away to a half-breed warlock; have you got a single brain cell in that tiny head of yours?”
“After what happened on the boat, he’s interested in you. Which means you need to be careful. Very careful. In fact, it wouldn’t hurt if you just spent the next few days inside. You can lock yourself in your room like Isabelle.”“I’m not going to do that.”“Of course you’re not,” said Jace, “because you live to torture me, don’t you?”“Not everything, Jace, is about you,” Clary said furiously.“Possibly,” Jace said, “but you have to admit that the majority of things are.”Clary resisted the urge to scream.”
“... In fact, it wouldn't hurt if you just spent the next few days inside. You can lock yourself in your room like Isabelle." "I'm not gonna do that." "Of course your not," said Jace, "because you live to torture me, don't you?" "Not everything, Jace, is about you," Clary said furiously. "Possibly," Jace said, "but you have to admit that the majority of things are." Clary resisted the urge to scream.”
“Sebastian just smiled. “I could hear your heart beating,” he said softly. “When you were watching me with Valentine. Did it bother you?”“That you seem to be dating my dad?” Jace shrugged. "You’re a little young for him, to be honest.”“What?” For the first time since Jace had met him, Sebastian seemed flabbergasted.”
“You and Jace – you’re not quite normal, are you? I mean, not normal Shadowhunters. There’s something special about you both. Like the Seelie Queen said. You were experiments.” He smiled at her startled look. “I’m not stupid. I can put these things together. You with your rune powers, and Jace, well…no one could be that annoying without some kind of supernatural assistance.”
“You mean you haven’t been going on romantic dates with Sebastian while you’ve been away from me?”“I tried,” Jace said, “but no matter how liquored up you get him, he just won’t put out.”
“Don't tell me," Jace said, "Simon's turned himself into an ocelot and you want me to do something about it before Isabelle makes him into a stole. Well, you'll have have to wait till tomorrow. I'm out of commission." He pointed at himself - he was wearing blue pajamas with a hole in the sleeve. "Look. Jammies.""Jace," Clary said, "this is important.""Don't tell me," he said. "You've got a drawing emergency. You need a nude model. Well, I'm not in the mood. You could always ask Hodge," he said as an afterthought. "I hear he'll do anything for a -""JACE!" she interrupted him, her voice rising to a scream. "JUST SHUT UP FOR A SECOND AND LISTEN, WILL YOU?”