Justin Theroux couldn't be more proud to call Jennifer Aniston his wife!

The 44-year-old actor took to Instagram on Wednesday, Dec. 9 to post an old photo of Jen, 44, in honor of #WomanCrushWednesday (aka #WCW) — basically proving Justin is the sweetest husband in Hollywood!

View this post on Instagram

#wcw #valentinored #xo

A post shared by @ justintheroux on

"#wcw #valentinored #xo," Justin captioned a snapshot of the Friends star donning the red, strapless Valentino gown she wore to the 2013 Oscars.

RELATED: What!? Not Even Jennifer Aniston and Justin Theroux Have Seen the Photos from Their Surprise Wedding

Justin's cute shoutout to his wife is just the latest in a slew of pictures he's posted on Instagram since joining the photo-sharing site last week. The first image he uploaded was a black and white snapshot of himself posing in front of a mountainous landscape with the caption, "#on."

View this post on Instagram

#on

A post shared by @ justintheroux on