Biel Dishes on Dialing JT

Before Jessica Biel became Justin Timberlake's official gal, she admitted that the two used to burn up the phone lines with long chats!

"We did a lot of phone conversations," Jessica admitted to David Letterman. The comedian laughed, and Biel added, "PG phone conversations!"

Biel is currently working on three films slated for a 2009 release.