Last updated at 5:15 PM on 1st January 2012

Scott Disick has been bemoaning the fact that he doesn't get to be passionate with girlfriend Kourtney Kardashian anymore in the new season of Kourtney & Kim Take New York.

But judging by the photos of them making out on New Year's Eve, it appears the fireworks are back on in their relationship.

The pregnant reality star locked lips with her boyfriend of four years at the stroke of midnight at their Las Vegas party and was unabashed in their display of affection.

Kissing Kardashian: Kourtney and boyfriend Scott Disick enjoy a heavy make out session as they see in the new year in Las Vegas last night

I got you babe: The mother-to-be couldn't get enough of her beau of four years

Out with the old: The pair hosted a night at the Chateau Nightclub & Gardens at the Paris Las Vegas

Kravings: Kourtney is expecting her second child and couldn't resist some sweet treats

The 32-year-old looked glamorous in a floor length black sparkly dress with a plunging neckline which revealed her ample assets.

Kourtney didn't let the fact she is expecting her second baby get in the way of her enjoying the family party.

She also showed off her pins in sky high Christian Louboutin platform heels and looked glowing.

Tasty: The pair stopped in at the Sugar Factory American Brasserie at the Paris Las Vegas where Scott fed his lady love

Dressed up: The 32-year-old showed off her toned legs in the black sparkly dress and wore sky high Christian Louboutin

Meanwhile Scott looked dapper as always and wore a tuxedo, had his hair slicked back but was puffing away on a cigar all night.

Kourtney hosted the night with Scott at Chateau Nightclub & Gardens at the Paris Las Vegas but left their two-year-old son Mason at home.

They were hosting their own party away and lapped up the attention by blowing on horns and posing in front of the fireworks display.

Parents night out: The pair made their way through the hotel with Kourtney's baby bump on display

Feeling lucky: The reality stars stopped in the casino for a gamble

In the money: Kourtney tried her luck on the roulette table

Instead of supping on champagne the mother-to-be stuck to sparkling apple juice.
Earlier in the night, Kourtney visited the Sugar Factory American Brasserie where she was seen in front of a plate full of cupcakes and ice cream which as a pregnant lady it is likely she indulged in a little bit.

The happy couple also got in a bit of gambling and spent time on the roulette table and posed for pictures with fans as they made their way through the large venue.

Kourtney and Scott arrived in Sin City by private jet which they had shared with sister Kim and mother Kris Jenner.

It is unknown how much Kourtney made for hosting her night but Kim reportedly raked in $600,000 for her appearance at Tao.

Travelling in style: Kourtney arrived in Vegas on a private jet with mother Kris Jenner and sister Kim Kardashian

Read more: Kourtney Kardashian has passionate make out session with boyfriend Scott Disick to see in the New Year | Mail Online