Now this is what we call sisterly love!
In this exclusive behind-the-scenes video from the shoot, we catch the gorgeous blonde soaking up the spotlight and flaunting her figure in a range of chic bohemian-inspired clothing and accessories that resonate with her personal style.
On location at a rustic outdoorsy ranch setting, Simpson and her crew make a day of it, styling her in floral print dresses, studded ankle booties, cozy knit sweaters, patterned tights, chambray shirts, frilly lace skirts and much, much more.
There's plenty of chunky silver jewelry to go around, as well as beanies, jackets, scarves, and boots, just to name a few. And not surprisingly, everything looks ah-mazing on little Miss Ashlee!
Suddenly, we're totally in the mood for fall and we have this campaign shoot (and its flawless cover girl) to thank.
Ashlee kicks up her heels and smolders for the camera like a pro, clearly proving that this shoot is all about her.
Her hair is undone and tousled, giving off a sweet country girl charm that's just a bit rebellious.
All in all, it's too adorable for words!
Well done, Simpson sisters!
Tune in to E! News tonight at 7 p.m. and 11:30 pm to hear Ashlee and mom Tina Simpson dishing on Jessica's new line.