Arnold Schwarzenegger and Maria Shriver again showed they can put their divorce difficulties aside when it comes to their kids, and came together for daughter Katherine's graduation from USC on Friday.

They were joined by other children -- Patrick, Christopher and Christina -- in the front row for the ceremony

She may not be perfect, but Maria Shriver is one hot mama! 

The former California First Lady took the plunge in Los Cabos, Mexico over the weekend, revealing her fantastic figure – as well as her cellulite – in a low-cut swimsuit. RadarOnline.com has photos of the mom-of-four on her south of the border getaway.

Arnold Schwarzenegger and Maria Shriver's son Patrick was involved in a skiing accident over the weekend in Sun Valley, Idaho, but the resurgent teen didn’t let it slow him down for too long, getting back on the slopes as soon as he was stitched up.

"Appreciate all the messages, love all you," the aspiring 18-year-old model wrote on his Twitter account (on which he calls himself Patrick Shriver).

Like father, like son!

Arnold Schwarzenegger’s 17-year-old son Patrick, who has already established  himself in the world of male modeling, wants to be an actor just like dad!

The high school senior recently opened up to WWD about his future plans.

“I’ve wanted to do some sort of acting stuff down the line,” he reveals.“But modeling is a good way to get comfortable in front of the camera. L.A. Models is setting up a lot of cool stuff for me now. Hopefully that will keep jumping.”

Patrick Schwarzenegger, the hunky 17-year-old son of Arnold Schwarzenegger and Maria Shriver, is grabbing the spotlight in his own rite.

There's now a billboard featuring Patrick -- shirtless -- modeling Hudson jeans.

The billboard is on top of a bar located at a busy intersection of Sunset Boulevard in Hollywood.

Patrick signed this year with L.A. Models, which reportedly has plans to push him for the Ralph Lauren and Armandi campaigns.

Arnold Schwarzenegger and Maria Shriver put their differences aside to spend some quality time together on his birthday Saturday.

The estranged couple met up in Beverly Hills for some retail therapy with their sons Patrick and Christopher.

PHOTOS:  Arnold & Maria & Their Sons On Schwarzenegger's Birthday

Arnold, 64, and his sons started the afternoon with lunch at his favorite restaurant, Cafe Roma.

Then it was off to Barneys New York, the high end retailer for some high end birthday shopping. Maria who had been at the nearby Ralph Lauren store, met up with their guys, and when last seen, they were all driving off together.

PHOTOS: Arnold Schwarzenegger Goes On a Birthday Bike Ride

There's no hint of a reconciliation here. Arnold and Maria's divorce is still on the fast track, but the couple has obviously decided to keep it as amicable as possible.

PHOTOS: Arnold Schwarzenegger's Movie Career

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PHOTOS: Christopher Schwarzenegger Out And About

PHOTOS: Maria Visits Christopher In The Hospital

Christopher Schwarzenegger Planning To Hang With USC Football Team – When Mom Lets Him!

Maria Shriver and Arnold Schwarzenegger's 13-year-old son, Christopher, who was recently released from the UCLA Medical Center after suffering a surfing accident in Malibu, is well on the mend and planning to hang with members of the USC football team -- when mom lets him that is -- RadarOnline.com is exclusively reporting.

Christopher's older siblings, Katherine, who will be a senior at USC this fall, and Patrick, a senior in high school, are very good friends with USC football quarterback phenom Matt Barkley and have pulled some strings to arrange the sporting treat for their beloved little bro.

Just two days after being released from the hospital, following a horrifying surf accident, Christopher Schwarzenegger and his mother Maria Shriver hit up a local Los Angeles mall and the teen looked like he is on the road to recovery.

The two were not just getting some retail therapy in, but they visited Patrick Schwarzenegger, Christopher's brother, at his summer job where he's working for The Grove shopping center.

Christopher spent about a week in the hospital following a boogie boarding accident in Malibu where he broke his ribs, and had a collapsed lung.  He was still wearing his hospital bracelets after being released.