FIRST PIC: Ryan Phillippe, Amanda Seyfried Pack on the PDA " Exclusive"

Amanda Seyfried and Ryan Phillippe visited the actress on the set of her sexy action flick Now (co-starring Justin Timberlake).

And at long last, the on-the-downlow pair weren't afraid to be affectionate in public.

In between takes, a beaming Phillippe, 36, held tight onto Seyfried, 25 (wearing a sexy red bob wig for her role) as she caressed his scruff.

Last month, the on-and-off couple -- who were first spotted hooking up over Halloween weekend last year -- were seen snuggling and kissing at an L.A. private members' club.
Courtesy of us magazine.com