Hot fun in the summertime! Khloe Kardashian is showing off the fruits of her hard labor with this sexy bikini selfie, writing that she's been "working on herself" this summer.

And so she should! After a painful split from baby daddy Tristan Thompson following a cheating scandal involving family friend Jordyn Woods, Khloe's focusing on putting her life back together and getting her mental self in-shape as well. She captioned the beach photo, "♡ This summer I have been focused on ME. Me from within. Mind. Body. Soul. ♡ #focused #peace #strength."

A few days previous she showed us the secret to her success -- tough workout sessions with trainer Joël Bouraïma. In face, he commented on her sexy selfie, "💪🏾WORK, WORK, WORK, WORK..💪🏾"

So here's what she does to get that sexy bod. The only thing we find surprising about this video, frankly, is that the Kardashians, with their 12,000-square-foot mansions and never-ending money always seem to make gyms in their garages! Why not actually build a gym INSIDE your house?! With A/C! That doesn't smell like rubber and Rolls Royce?!