“When we’re separated, we’re like, ‘What are you wearing? Oh! That’s weirdly similar,” Phillippe tells PEOPLE exclusively.
While Witherspoon opted out of Coachella this year, whom her daughter described as “not a big festival person,” Phillippe has been keeping her in the loop regarding her looks.
“She loves when I send her my outfit pics,” she says. “So we’ve done that all day.”