Demi Lovato has opened up on her relationship with Wilmer Valderrama by posting a sweet throwback snap on Instagram.
The couple have kept their four-year relationship largely under wraps but the Skyscraper singer shared the image with her followers for Throw Back Thursday, captioning it "#TBT to that one time we had an hour to kill before our movie so we went to the furniture store and took a nap... missing you".
Last month, the That 70s Show actor also took to social media to share his love for Lovato, wishing her happy birthday with a very seasonal snap.
"Wishing you happy birthday would never come close to all the inspiring things I wish for your life... We laugh our asses off... While we do all we can to better everything around us.. Love you through all."
