And we're at such a loss of words, we're going to let Miz Teigen tell you what went down:
Girl, you look FABOOSH!!
The reality star has been very forward with her weight struggles in the past — especially after giving birth to baby #2, Lincoln Marshall, back in November of 2013.
She captioned the photo:
"HAPPY HUMPDAY. 20 lbs to go! Left was today, right was taken June 2014."
And it looks like the whole family is getting behind Kailyn's healthy change. Husband, Javi Marroquin, re-grammed the pic to his own account.
"Needed to remind you again of how proud I am for all the hard work you've put in! I know this journey has been rough, but you haven't given up. I am so proud of you! Love you @kaillowry."
Through Instagram, the 23-year-old has shown that CrossFit and the waist training trend are to credit for her healthy figure.
Today is a waist training kind of day. @waistedbykeke I'm in love with this thing 😁😎💜☀️ Ladies, Use code "kail10" to receive 10% off your purchase #waistedbykekeA photo posted by Kail Lowry (@kaillowry) on Mar 23, 2015 at 5:20pm PDT
Whoa. That's truly intense stuff!
Keep up the hard work Kailyn! You look gorgeous.
[Image via Instagram.]