Jennifer Aniston's Hairstylist Reveals Why She Got a Bob

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Hint: It has to do with a reality show.

What inspired Jennifer Aniston's new bob?

"It was just time for a change. We had a blast doing it," her hairstylist, Chris McMillan, tells "And we've always liked this haircut. It's about keeping things simple. The way Celine and Calvin Klein and Jil Sander and all these clothing lines are keeping it really simple and chic. I really feel that fashion right now. All the styles are back to when I first started doing hair. And I love it."

McMillan says he's "loving bobs again."

"It's a sexy look. The reason that I'm loving a bob at the moment... There are so many long, layered hairstyles and -- don't get me wrong, I love that. But The Real Housewives of Beverly Hills all have that. You know what I mean? And what's the opposite direction you can go in?" he says.

He didn't want Aniston looking like those reality stars.

"They all have that natural, piecey hair," jokes McMillan. "It's nice to take the extensions out of the hair and do something more natural. It's gotten out of hand. But I can't stop watching it."

The cut is a "hairline bob that follows the jawline down. It's shortened in back and longer in front. It's angled and inspired by Vidal Sassoon haircuts and Julie Christie from Shampoo."

McMillan goes on, "In the back it angles up -- it was cut at the nape. I love it when it's slightly angled. The angle adds a modern edge to it. To keep it modern, it's not too blunt but also not too layered. It kind of has a choppier edge. The ends are cut into, but mainly they're all one length."

It was chic and straight for the Just Go With It Madrid photocall, but soon Aniston will show off her waves: "We did blow it out for press, but we're excited to go kind of natural, like Kim Basinger in 9 1/2 Weeks."

She didn't change her color to match the cut.

"It's so funny," McMillan says. "This is something that happens all the time: Whenever I cut someone's hair, they say, 'My color looks so much better.' The color kind of freshens up when you get a drastic haircut."