Cassandra Clare said this quote

Jace broke off the kiss and stepped back with an exhale; before Clary could say anything, a chorus of sarcastic applause broke out from the nearby hill. Simon, Isabelle, and Alec waved at them. Jace bowed while Clary stepped back slightly sheepishly, hooking her thumbs into the belt of her jeansJace sighed. Shall we join our annoying, voyeuristic friends?Unfortunately, that's the only kind of friends we have.