Only one of them is really pregnant at the moment, but Snooki and Jwoww both got practice being moms as they were spotted holding fake babies while filming their new "reality" TV show in Jersey City on Thursday.

For once, these two really did get all dolled up.

Snooki and her "Jersey Shore" spinoff co-star Jwoww decided to spend part of yesterday playing with dolphins in Cancun. 

Looks like their new show is shaping up to be a sober good time.

*Yawn*

Mom-to-be Snooki enjoyed her first sober Spring Break party in Cancun today ... while her "Jersey Shore" spinoff castmate Jwoww enjoyed the kind of cocktail an unwed pregnant reality star cannot. 

Soon Snooki will be enjoying her first sober St. Patrick's Day. Then her first sober Passover. Then her first sober Easter. Then her first sober Earth Day. Then her first sober Cinco de Mayo. Then her first sober Memorial Day. Then her first sober Flag Day. Then her first sober July 4th. Then her first sober ...

Jwoww from "Jersey Shore" is being sued for more than $150,000 ... all because she never warned her landlord that she planned to let the show film inside her pad ... this according to a new lawsuit.

According to the suit, Jwoww leased a pad on Long Island back in 2008 from a guy named Stuart Levine. But after she moved in, Jwoww opened her doors to 495 Productions to shoot scenes for the very 1st season of "Jersey Shore" (below).



Levine claims he had NO IDEA Jwoww allowed the shoot to take place until the show aired. He also insists she does NOT have the authority to use the house for commercial filming.

Now, Levine is demanding more than $150k from 495 and Jwoww.

So far, no comment from 495.

In an unwise financial move, the wine shop next to Snooki's new Jersey City home wants nothing to do with the little booze guzzlin' blast in a glass ... and even posted a sign on the door to keep her the hell out.

We're told Jwoww ain't welcome in the store either, so the ladies will have to schlepp their bronzed behinds a little further than next door when they want to binge drink for the cameras of their new reality show.

TMZ spoke to the GM at the wine shop ... who tells us, "Even if Jwoww shows up at our front door she will not be let in."

He adds, "The only thing they are good for is ridicule and amusement. There is no upside business wise, and the potential downside is God knows what. Why feed the embarrassment?”

Former Playmates and MTV "Singled Out" hosts Jenny McCarthy and Carmen Electra got cozy with "Jersey Shore" vixen Jwoww at the "Leather and Laces" Super Bowl event in Indianapolis this month.

Question is ...

If you were hoping the entire "Jersey Shore" gang would be making appearances on the upcoming Snooki and Jwoww spin-off, think again ... because The Situation says he won't be a part of it.

We spotted The Sitch in Beverly Hills yesterday, where he chalked up the girls' recent comments about his sexuality as just "crazy." He also said he felt Snooki's pregnancy rumors were just her ... trying to draw up attention for the new show.

As TMZ first reported, the show is planning on shooting at an old firehouse in Jersey City. No timetable yet for when the show will air.

Sound the alarms! Because this old firehouse is about to become the new Jersey City smush pad for Snooki and Jwoww while they shoot their upcoming "Jersey Shore" spinoff.

As we previously reported, the producers of their new MTV reality show obtained a permit to shoot at the firehouse ... under the condition that there MUST be at least 4 Jersey City police officers at the pad at all times.

In addition to the boys in blue, the 150-year-old firehouse comes with a pretty sweet kitchen, an accident waiting to happen cast-iron spiral staircase and bedrooms with doors labeled skank Office of the Battalion Chief and grenade Captain.

And while the place may not have a hot tub, it does come with an authentic fire pole ... perfect for keeping a wasted Snooki busy for hours.

Snooki and Jwoww will be on some seriously thin ice when they begin shooting their new reality show in Jersey City ... because the cops will be assigned to watch their asses AT ALL TIMES.

TMZ has learned ... officials in Jersey City  refused to a grant a permit to shoot the show UNLESS they agreed to some seriously strict rules.

1) The show must allow at least four Jersey City PD officers to be stationed at Jwoww and Snooki's home at all times.

2) The cops will stay with the cast and crew when they leave the home. Cops have agreed to keep an appropriate distance from the operation, so they don't get in the way of production.

3) If MORE cops are called in to handle an incident due to events related to the show, producers MUST reimburse Jersey City for all related costs.

Officials have also made it clear ... cops are taking the situation very seriously and will take action ... even on the cast ... if any state or city laws are broken.

Ultimately, producers agreed ... and got the permit. Production is scheduled to begin later this month.

Snooki and Jwoww haven't lost faith in the Garden State just because Hoboken rejected them -- we're told they're still determined to find a New Jersey location for their new spin-off show ... no matter what.

Sources tell TMZ, producers behind Snooki's untitled spin-off with Jwoww are currently working round the clock to find a suitable Jersey replacement for Hoboken -- after the mayor denied their filming permit, citing a laundry list of obvious reasons.

No word yet on an alternative -- but we're told producers are currently eyeing a number of possible locations in South Jersey.

You've been warned.

Snooki and Jwoww's new spin-off just hit a nasty snag in New Jersey -- because the town where they planned to shoot the reality show has rejected their request for a film permit.

The Mayor of Hoboken Dawn Zimmer just made the announcement on her website, claiming the Hoboken Film Commission unanimously voted to deny the permit to 495 Productions "based on protecting public safety and quality of life concerns for Hoboken residents."

According to the mayor -- there's a laundry list of problems with approving a 24-hour permit in Hoboken, the least of which is a local policy that prohibits ALL filming after 11pm in residential areas.

The mayor claims filming the show would result in an "unacceptable lessening of the quality of life for the local residents and businesses" -- causing traffic, creating large noisy crowds, and completely disrupting day-to-day life.

Of course, Snooki can also stimulate a local economy -- so is banning her really worth it? Probably.