"They have really found a great female support system," a source tells PEOPLE of Jennifer Lopez and Jennifer Garner's friendship

Ben Affleck and Jennifer Garner have three beautiful children together. Their eldest, Violet Affleck, was born in December 2005, Fin Affleck was born in January 2009, and Samuel Affleck was born in February 2012.

Jennifer Garner and boyfriend John Miller's relationship is "solid," a source exclusively tells Us Weekly. "He doesn't get jealous and understands Jennifer prioritizing her kids," the insider tells Us of Garner's focus on her three children with ex-husband Ben Affleck.