Credit: Chelsea Houska on Instagram

Chelsea Houska has always been drop dead gorgeous, but this Teen Mom 2 star lost dramatic amounts of stubborn baby weight in the past year, and she's looking better than ever.

Chelsea shed her unwanted pounds thanks to a combination of healthy eating and exercise (kickboxing, anyone?). Yet, her obsession with enormously baggy sweatpants has prevented fans from getting a good look at her body transformation. Until now!

Credit: Chelsea Houska on Instagram

“Haven’t had a Sunday funday in a looong ass time...and damn do I need it,” Chelsea captioned a photo of herself in an itty-bitty bikini. All we can say is OMFG Chelsea looks ah-mazing! In fact, we're pretty sure she's slimmer now compared to before she popped out her daughter, Aubree. Looks like all that hard work finally paid off! 

Also, girlfriend is rocking the socks off that belly ring. Not many people other than Britney Spears can pull off such an early aughts look, but she can!

Are you as blown away by Chelsea's body transformation as we are? Head to the comments and tell us what you think about her enviable bikini body.

And by the way, Chelsea's estranged baby daddy Adam Lind probably has a few regrets right about now...