Hot Mamas

Heidi Klum performed a supermodel magic trick Wednesday ... riding bitch with an extremely large helmet and then removing it ... only to reveal a perfectly coiffed head of hair.

Heidi was riding with her bodyguard-BF Martin Kristen in Venice, CA when she showed off her hat trick.

They've taken a serious step in their relationship, wearing similar get-ups, including hipster sunglasses.

Jessica Simpson and Eric Johnson are going to extremes to hide something -- like every inch of their bodies during their family vaca in Hawaii.

We've already seen Jessica covering up on the beach since announcing her pregnancy ... but during a Christmas Eve stroll on the beach even Eric was cloaked from head-to-toe while carrying baby Maxwell.

Far as we know ... Eric doesn't have a deal to drop lbs on Weight Watchers.

The only Simpson not in undercover mode these days is Ashlee Simpson ... who proudly showed off her bikini bum.

Russell Simmons could teach Halle Berry a thing or two about breaking up. He's on such good terms with ex-wife Kimora Lee, he kicked it with her AND new GF Hana Nitsche Wednesday on the beach in St. Barths.

Simmons and Kimora Lee divorced in 2009 ... but they stayed unusually and refreshingly close post-split ... sometimes vacationing together with their respective SOs.

There's no question Russell can pull some impressive ass -- but we gotta ask ...

Jessica Simpson raked in millions of dollars from Weight Watchers to drop her baby lbs -- just in time to put it all back on with a brand new fetus! Busiest womb in Hollywood, folks.

Jessica Simpson is hiding something -- because the newly pregnant singer just hit the beach in Hawaii ... wearing an enormous green cover-up thing.

Just one day after announcing her new bun in the oven, Jessica went out for a waterfront stroll today with her fiance Eric Johnson ... and her rapidly-forming fetus.

This will be Jessica's second child after she gave birth to her daughter Maxwell in May.

So much for rumors Weight Watchers will dump Jessica Simpson now that she's pregnant again ... the company is actually expanding her role in hocking the diet plan ... even though she's taking a hiatus from the diet regime.

W.W. just announced it will not only continue to run the ads touting Jessica's alleged 50 lb weight loss ... it will also push her new 30-second ad -- released today -- in which she announces her pregnancy.

Weight Watchers calls Jessica's weight loss "successful" -- notwithstanding the proof of performance ad showing Jessica substantially covered in a flannel shirt.

As for the future, Weight Watchers says Jessica "will not be following the program during the pregnancy while her weight and well-being are monitored by her obstetrician."

Just two days before she made her big announcement, a secretly pregnant Jessica Simpson took her fetus on a Christmas Eve shopping spree ... and showed off her growing baby bump.

While wearing an animal print tunic-thingy, Jessica hit up a Target store in Hawaii on Sunday to stock up on wrapping paper and all sorts of other competitively priced stuff.

It's unclear how far along she is, but it's gotta be early ... considering you can BARELY see the bulge in her midsection.

Side Note: Her legs look great!

Stephanie Seymour's butt is unavailable at the moment -- as it's currently on vacation in St. Barts.

If you would like to leave a message for the butt, please do so at the beep.

Country singer LeAnn Rimes married Eddie Cibrian after dating him while he was still married to "Real Housewives of Beverly Hills' star Brandi Glanville.

Question is ...

Supermodel Kate Moss almost took a ball to the head while hanging out on the beach in St. Barts on Wednesday.

While trying to soak up the sun with husband Jamie Hince, the bikini-clad 38-year-old got photobombed by a completely naked dude checking his phone behind her.

Jennifer Aniston and Jessica Simpson both have a major glow about them -- and since everyone wants to know if it's because they're knocked up ... we set out to find definitive answers! Hey, we tried.

Jessica reportedly has a tiny person growing inside of her, but has yet to confirm a pregnancy.

But on Saturday she showed up to Zach Braff's mansion -- where the wedding was held -- in this kind-of-poofy black dress ... which CONVENIENTLY covered her stomach (aka her baby incubator).

At first glance, this seems like an innocent photo of Jessica Simpson leaving King's Fish House restaurant in Calabasas yesterday ... ORRRRR ... is it irrefutable proof that she's ACTUALLY PREGGO WITH A 2ND CHILD?! Let's review the facts ...

Fact: Jessica Simpson was wearing a jacket that covered up her stomach, where babies most commonly grow.

Counter-Fact: It was pretty chilly in L.A. yesterday, so the jacket could have been to provide warmth.

Fact: Pregnant people aren't supposed to eat raw fish!!!

Fact: We probably shouldn't make assumptions

A day before officially announcing she had a little Bush in the oven on the "Today" show Wednesday, former First Daughter Jenna Bush Hager previewed her burgeoning baby bump in workout wear with husband Henry Hager at a Whole Foods in NYC on Tuesday.

George W. Bush's 31-year-old daughter is due sometime in the spring.

"Top Chef" host Padma Lakshmi proved she can stomach a lot more than just a meal ... and showed off her pipin' hot bod in a baby blue bikini in Miami this weekend.

Scrumptious.

Sofia Vergara is filming a new movie that's revealing a lot more of the "Modern Family" star than we're used to seeing ... by having her flaunt her God given talents in sexy black lingerie.

The gorgeous 40-year-old showed off her beautiful unmentionables on the set of "Fading Gigolo" in NYC on Friday.