Teens are not pairing off just in the evening; they are also hanging out together right after school.

The hours between 3pm and 6pm, when many parents are still at work, are prime time for trouble.

Researchers at the RAND Corporation have found that teens are more likely to have sex when there is less after-school supervision.

So if your daughter is home when you’re not, show up unexpectedly on occasion or ask a friendly neighbour to check up on her.

• For more information, visit http://www.webmd.com/parenting/features/teen-dating-guide-for-mom