kourtney-kardashian-reign-5-months

Mom-of-three Kourtney Kardashian shared a sweet new shot of 5-month-old son Reign Aston.

“My RAD little bunny,” the reality star, 36, Instagrammed the adorable image.

In the photo posted on Saturday, the tot is seen lounging in a carrier, wearing a onesie and tan hat, complete with bunny ears.

The beautiful baby boy, who was born Dec. 14, is Kourtney’s third child with longtime boyfriend Scott Disick.

This is our second glimpse of the boy. In April, the KUWTK star introduced her son via Instagram.

Reign has two big sibs: brother Mason Dash, 5, and sister Penelope Scotland, 2 1/2.

My RAD little bunny.

A photo posted by Kourtney Kardashian (@kourtneykardash) on May 16, 2015 at 11:32am PDT