OK, so they may not be related in real life, but on their Nickelodeon TV show The Thundermans, Kira Kosarin and Addison Riecke play sisters! That explains Kira's precious caption, right? "Sister selfie before rehearsals this morning," she wrote on Instagram. We totally love how these two get along when the camera's AREN'T rolling. Now that's family! <3
Who is your favorite character on The Thundermans? Let us know by leaving a comment!