Po you Even Lift, Bro? It's Muscle Mamma Kimmy!

Daayumm! Someone’s klearly been keeping up in the gym!

Strong is the new skinny, according to Kim Kardashian. While the star was once all about her petite frame, she’s bulked up big-time thanks to her new bodybuilder trainer Melissa Alcantara.

Yep, it’s bye-bye jiggly badonk and hello muscly thighs, bulging biceps and washboard abs you can grate cheese on!

What’s more, we hear Kim, 37, is sooooo in love with her new beefed-up bod, she’s planning on entering an amateur bodybuilding competition to flaunt the fruits of her labour!

“She’s become obsessed with bodybuilding since meeting Melissa last May,” says a Kardash insider. “She wants to show off all her hard work and has already started practising her poses.”