Wilmer Valderrama and Demi Lovato have been together for six years – a rarity for young couples in Hollywood these days.

And the two celebrated the milestone with some seriously adorable Instagram shots.

Demi Lovato posted this selfie, simply captioning it “6”.

6 ❤️

A photo posted by Demi Lovato (@ddlovato) on Jan 10, 2016 at 1:20pm PST

Then, she posted this collage of images from every year they couple has been together:

❤️

A photo posted by Demi Lovato (@ddlovato) on Jan 10, 2016 at 1:21pm PST

Just look how cute they are together:

When to try to kiss bae but it's too fucking cold to take your shit off ❄️❄️❄️ #snowcute

A photo posted by Demi Lovato (@ddlovato) on Jan 8, 2016 at 4:47pm PST

“When to try to kiss bae but it’s too fucking cold to take your shit off,” Lovato captioned that photo.

Slept in today so I didn't post my #NMM picture BUT I thought I'd make it up now with a cute/sneaky family photo… ???? did you get someone #DevonneByDemi this Christmas??? It's makes the perfect gift….. Just sayin….. ☕️? www.devonnebydemi.com @devonnebydemi

A photo posted by Demi Lovato (@ddlovato) on Dec 14, 2015 at 3:26pm PST

Congratulations the the happy couple on their anniversary!