Celebrate Galentine's Day This Year with Sweet Photos of Our Favorite Celebrity Pals

The two first met on the set of "Pretty Little Liars" and teamed up for "PLL" spinoff "The Perfectionists" in 2019, and they have developed a real-life friendship off-screen too. "Sasha and I have always been so close," Parrish told POPSUGAR about their friendship. "When we had scenes together in "PLL", we were always fighting. So [in "The Perfectionists"], it was really fun to explore what a friendship looks like between Mona and Alison. It came pretty easily to us because we are really close in real life."