For some teens, holidays set intimate mood Many youths going steady lose virginity in December, study shows 12/26/2002 Associated Press School's out for the holidays. Teens have got time on their hands - and perhaps even a crackling fire to set the mood. What are they planning for vacation? Apparently, losing their virginity is high on the list for those with significant others, according to researchers who reviewed data from a federal health survey. While June is the most common month for teens to have sex for the first time - be it in a casual summer fling or...