Question: in what episode of season 6 does elena remember damon

title: Do You Remember the First Time? (The Vampire Diaries)
text: Colin Ferguson ( Tripp Fell ) Penelope Mitchell ( Liv Parker ) Marguerite MacIntyre ( Liz Forbes ) Chris Brochu ( Luke Parker ) Jodi Lyn O'Keefe ( Jo Laughlin - Parker ) Marco James ( Liam Davis ) Chris Wood ( Kai Parker )