Aww! Demi Lovato and Wilmer Valderrama Celebrate Six Years Together

Time flies when you're in love! Demi Lovato and Wilmer Valderrama, who have spent the last week on the slopes, celebrated six years together on Jan. 10, and the couple took to Instagram to share a series of adorable posts. "Six," Demi captioned a snuggly snap in bed, later posting an aww-inducing montage of six photos (one for every year they've been together) and an adorable mountaintop kiss (read: kiss attempt). Though their relationship has been filled with its fair share of challenges, we're glad to see that Demi and Wilmer are more in love than ever — hey, Wilmer, where is the ring? Keep scrolling to see their anniversary pictures, and then check out even more of their sweetest Instagrams.