 Leonard and Penny decide to elope to Las Vegas in the season 8 finale, but beforehand, wanting no secrets, Leonard admits to kissing another woman, Mandy Chow (Melissa Tang) while on an expedition on the North Sea.Despite this, Leonard and Penny finally elope in the season 9 premiere and remain happily married.By the Season 9 finale, Penny and Leonard decide to have a second small, unofficial wedding ceremony for their family and friends to make up for eloping.