Hollywood starlets Jennifer Garner and Jessica Biel became fast friends while playing best friends in the new box office ensemble comedy Valentine’s Day. Now the girls are sharing the deets on their new bond on the pages of the March issue of Marie Claire.

“We don’t work with a lot of women on our films,” Jennifer told the women’s interest magazine during a co-interview with Jessica, on newsstands Tuesday. “The two weeks I worked on this movie were the only two weeks I’ve worked in about a year-and-a-half because of being pregnant and now having a 1-year-old. But when I do work, it’s always one woman and a bunch of men in my casts – maybe my character has a friend in the script, but not always. It’s odd. So on this film, it was great to have someone like Jessica around, even though most of our scenes as best friends were over the phone.”

Jessica added, “You never really bond with all the guys in your cast like they do with each other.”