Kourtney Kardashian attended a New Year's Eve party in a very revealing black gown that will make everyone asking, "is she really pregnant?"

The reality star stepped out with longtime boyfriend Scott Dissick in a sparkly black gown that showed her cleavage and has a thigh high split on her leg. The 32-year-old Kardashian was said to be three-month pregnant but it does not show in her current figure. Amazingly, Kourtney was able to teeter on a very high Christian Louboutin heels with ease as she hosted a party in Las Vegas.

Her boyfriend Scott Disick said that he does not get a chance to be passionate with her anymore in the new season of Kourtney & Kim Take New York. However, the two were snapped by some photogs making out on New Year's Eve, it seems that the fireworks are back on in their relationship. The two locked lips as the clock struck twelve, and Kourtney sipped sparkling apple juice instead of champagne.

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. The other Kardashians also have their own commitments on New Year's Eve. Younger sister Kim hosted the party at Tao Club in Las Vegas, in which she raked up to $600,000 for a series of appearances in the said club. Dashing Rob Kardashian also hosted his own bash at Tryst Nightclub at Wynn Las Vegas. Khloe Kardashian spent New Year's Eve with her husband Lamar Odom in an unknown location.

Although her 12 weeks old baby bump is not too noticeable just yet, Kardashian told Us Weekly that sheis "doing good." The "Kourtney & Kim Take New York" star, who revealed her pregnancy news exclusively to Us Weekly in December, said she is eager to give son Mason, 2, a sibling -- regardless of the child's gender. "I am the same way as before -- whatever's meant to be will be," Kardashian told Us. "Just a healthy, happy baby. But we will find out the sex."