Inside the mag, Kourt gives readers the scoop on how she managed to lose it all so quickly and get her bod back in picture-perfect shape.
Wow. So no Photoshop or anything? Very impressive.
Of course, if any image altering has taken place, we're pretty sure we'll hear about it.
All that weight gain was worth the hard work to lose it. See for yourself in our Kourtney Kardashian Baby Brag Book gallery.