Board Thread:WARNING ALL USERS False Info\Spoilers/@comment-99.26.245.4-20131014062710/@comment-6207588-20131014122319

it's from the comic con panel...you can find all that stuff here on the wiki

http://teenwolf.wikia.com/wiki/User_blog:Paul.rea/Teen_Wolf_New_York_Comic_Con_2013

what was actually said was that he would lose a certain status...most people are assuming that it's his virginity but there are a few other theories floating around.