Jace, you will have to shed any shame regarding what you enjoy very fast in this city.

[ He spent decades at the Academy, but he never had to teach sex-ed. The Nephilim have always preferred their children repressed and unwilling to experiment.

Except the Herondales, he supposes, that line has always been special. But if he has his history right, Jace stepped out from abuse and was directly thrown in with the Lightwoods. ]

Alec is being weird because this city is hell. Plus, he's likely worried you'll judge him.