'Supernatural' Star Jensen Ackles and Wife Danneel Expecting Twins -- See Their Cute Gender Reveal!

Congrats are in order for Supernatural star Jensen Ackles and his wife, former One Tree Hill star Danneel Harris.

The happy couple, who got married in 2010, confirmed on Wednesday that they're expecting twins.

WATCH: Ashton Kutcher and Mila Kunis Expecting Second Child

"Adding a couple of pairs of boots to the family later this year," Ackles, 38, wrote on Instagram with the hashtag #crazytimesahead. The photo also reveals the gender of the babies, a boy and a girl.

Adding a couple of pairs of boots to the family later this year. #crazytimesahead

A photo posted by Jensen Ackles (@jensenackles) on Aug 10, 2016 at 11:31am PDT

The new siblings will join 3-year-old big sister Justice Jay, whose epic play dates have been chronicled on social media by the Supernatural actor.

Enjoying the last few days of my summer break. Gotta steal these kisses while I can! (Photo cred- my beautiful wife). Gotta steal kisses there too.

A photo posted by Jensen Ackles (@jensenackles) on Jul 8, 2016 at 6:18pm PDT

A fathers work is never done. Happy Daddy Day to all you men out there that handle your business. Even getting makeup applied. That's the good stuff... #fathersday

A photo posted by Jensen Ackles (@jensenackles) on Jun 19, 2016 at 2:37pm PDT

Love dogs... #stopyulin @no_yulin

A photo posted by Jensen Ackles (@jensenackles) on Jun 15, 2016 at 5:06pm PDT

RELATED: Jensen Ackles Joins Instagram With Adorable Father-Daughter Photo

Last year, Ackles joined Instagram with a sweet photo of himself and baby Justice. He later took to Twitter to explain why he finally decided to open an Instagram account.

"In an effort 2 squash some posers, my daughter is helping me start an Instagram profile," he wrote. "Check it out. Hint: it's just my name."

In other baby news, The Bachelorette star Emily Maynard is pregnant with her third child! Get all the details on the newest addition to Bachelor nation in the video below.