She's giving Cait a little free product placement!

Kourtney Kardashian hit the studio yesterday clad in stepdad Caitlyn Jenner's new H&M workout line, and the reality star is definitely more trim and toned than she's been in years! The mother-of-three documents her daily exercise sessions with sister Khloe on Snapchat, and they're certainly paying off. Perhaps her hot bod is the reason why baby daddy Scott Disick is working his way back into her good graces?

Rumors have been swirling that the eldest K sister and The Lord are back together after a romantic trip to Miami, but other sources are claiming they're not officially back on... yet!

"They are getting along great and having fun with the kids but are definitely not back together yet. Scott has been very well behaved and if he continues this, it's very possible that Kourtney will take Scott back. Kourtney has been very happy with Scott lately. She seems excited to be spending more time with him," a source dished to People.

Coincidentally, LD arrived at the studio just moments after the Keeping Up with the Kardashians star. These two are way too friendly not to be boning!