Alex and Spencer are twins and apart from the fact that Spencer is about a head taller than Alex they are identical. Their family includes, Melissa, Mia and Rebeca(beca) Hastings their older sisters, Veronica Hastings their mother, Peter Hastings their father and Jason Dilaurentis their half-brother The twins are best friends with Aria, Hanna, Emily and Alison Ages: The girls-18/19 Melissa-25 Beca-23 Mia-22 Jason-27