Thsi will be my first fan-fic in the City of Bones spot please comment;)

“Your drawing are really good.” Jace said, he was sitting on the edge of Clays bed, flipping through her drawing book. “I mean really good. The best ive see, almost like Picasso-”
“Jace, shut up.” Clary was looking at the ceiling, thinking about Iris. It had almost been a month since they had stopped Valentine. Since Sebastian and Max were killed, since shed found her mom, since shed found out that Jace was not her brother. Clary let out a loud sigh.
“What?” Jace asked putting a doughnut in his mouth.’
“What did I say about eating in my room! Jace you’re gonna get crumbs on my bed, Damn!” She yelled at him as he wiped his hands on his pants. Jace was laughing, shaking the bed.
“What!” Jace said putting his hands up in the air. “Sorry, I didn’t know there were rules.” He was still laughing. Clary brushed away the crumbs from her bed.
“No really Clary. Im sorry.” Clary looked up at him, from his eyes she could tell that Jace was really sorry. A smile spread on his lips, he reached up and kissed Clary softly on her lips....

Okay since we all know that they are Brothers and Sister....(well most of us) i used to be 100% sure they are but to be honest they are so not!.
Yeah there are pretty good things to back up the reason they are but the story is based on them two, and if they do end up being Brother and sister well....i guess thats really sad. If i meet someone i didn't know it was my brother wouldn't you have a gut felling its is so you become friends not lovers?. What about Clary mum having and affair with another man? or Clary not even being her real daughter? how abou that? But we all have to wait for a couple of months for Clarly mama to wake up and say the truth or we are all doomed!!!!! PLus clary and Jace.