Miss Richie and her pillow arrive at the airport in Sydney, Australia.

We know you’re pregnant now, Nicole. Remember? The whole thing with Diane Sawyer? Why cover the baby bump? Is someone still having weight issues?

Those are the weirdest sunglasses ever.

Miss Richie hit the Hawaii beaches to celebrate her 26th birthday. Fiance Joel Madden was there, too. She’s actually looking quite good these days, and I’m impressed with her for spending her birthday on the beach in Hawaii instead of in LA — even though she probably did invite the paparazzi along.

Sounds like everything is just as it should be.

Nicole Richie was spotted at a friend’s going-away party in Bev Hills with Samantha Ronson, Zach Braff and his girlfriend, Shiri Appleby (I guess he’s off the market now, girls), and was sipping tea while everyone else downed the liquor. The preggers starlet ate halibut, spaghetti Bolognese and spinach, and took her temperature after dinner to make sure she didn’t have a fever (is this something pregnant women usually do?)

But after the brief display of health and normalcy, she promptly returned to her Nicole roots, mocking Paris and Lindsay on the dance floor.

Nicole got slightly naughtier later on that night, when the party moved over to Hyde. “Nicole and deejay Frankie Inglese were imitating Paris and Lindsay having a dance-off,” says my Hyde insider. “Nicole was doing Paris, and Frankie was doing Lohan.”

Sounds like our good ole Nicole.

Man. That was a really weird few months. But now that all 82 minutes of her jail stay are behind her, Nicole Richie seems once again to have warmed to her old pals, the paparazzi.

A preggers Nicole and her rumored fiance Joel Madden just happened to be posing adorably in Central Park when some photogs wandered by. What a coincidence!

Also: it looks to me like Nicole roots are dyed again. She let them go for awhile — we all figured it was because hair dye isn’t recommended for pregnant women — but I guess now that she doesn’t have to look like a responsible mom-to-be to avoid jail time, she’s back to focusing on being a hot mom-to-be.

CBS put together this lovely list:

You can order a pizza from Pizza Hut and Domino’s and expect it to arrive at your door…and have time to eat it. Not that Nicole eats much…but the rest of us can.

You can drive from Los Angeles to Long Beach (if traffic is light).

You can read an entire issue of “US Weekly.”

You can wait on line at the post office in Sherman Oaks (the express line usually takes less than an hour. Unless you’re holding extremely heavy packages. Then, of course, clerks go off duty to delight in watching you struggle.)

You can get out of the Dodgers parking lot (even when they are sold out) with their new parking procedures. Last year, not so much. There were games where fans (the web team included) spent 2 hours trying to get out of the lot.

You can play a rousing game of Trivial Pursuit…especially if your opponents aren’t very bright.

You can burn 559 calories while running cross-country (provided you weigh 100 pounds).

You can fly to Vegas and wait for your bag and get to a casino on the strip….if it’s not too far down the strip.

You can watch the entire “Simpsons” movie as it is exactly 82 minutes long.

You can get a haircut (no waiting) at most barbers and hair salons (appointments necessary, of course)

You can watch three episodes of “The Simple Life”…

You can have lipo done during your lunch hour…including a stop at In ‘N Out (presumably before the lipo.)

She was in. She was out. Quicker than Lindsay Lohan can down a bottle of Grey Goose, Nicole Richie served her jail sentence.

While the rest of the world was focused on Lindsay’s plea bargaining, Nicole quietly slipped in and out of Lynwood’s women’s facility. She checked in at 3:15 pm today and checked out at 4:37 pm.

According to a statement from the LA County Sheriff’s Department:

On August 23 2007, at 3:15 PM Miss Nicole Camille Richie reported to CRDF and surrendered herself following a July 27 arrest, she was sentenced to serve 96 hours in County Jail. Miss Richie was accompanied by her attorney, Shawn Chapman Holley and her boyfriend Joel Madden. Miss Richie was booked and processed into the jail system. Miss Richie was cooperative during the process. Based on her sentence and federal court guidelines, Miss Richie was released at 4:37 PM today.

Lohan was handed down a bullshit sentence today, too — she’ll only serve a day in jail, as well.

Looks like Paris Hilton served the jail time for everybody.

While all eyes were on Lindsay Lohan’s plea deal, a pregnant Nicole checked into Lynwood — where Paris did her time — at 3:15 pm today. Nicole is supposed to serve four days, but will likely go home early because of overcrowding. I’m not sure why she checked in during the afternoon — she could have checked in at 11:59pm and had it count as a full day. Maybe she was worried about the lines being long, who knows?

We’ll have more details as they come.

Thank you, Nicole!

Rumors are swirling that Joel Madden proposed last week. This would be the second time Nicole’s been engaged — the first time was to DJ AM.