Revellers will have to wait that little bit longer for the much-anticipated birth of Kourtney Kardashian's second child, after a series of Tweets from her and her sister Khloe Kardashian hinted that the reality star was pregnant.

Khloe sent the rumour mill spinning with 'news' that Kourtney had gone into labour with some couple of cryptic tweets last night. The micro-blog sent many of her six million fans into a frenzy, as they congratulated the star on the birth. However these rumours were quashed after she was pictured earlier today heading to her other sibling Kim Kardashian's house looking very much pregnant still.

Kim later tweeted the news that she and her sisters are currently filming a new ad-campaign for a new line of make-up, pretty much placing a wet blanket on what would be a red hot story reports The Daily Mail.

Kourtney is already mother to Mason, three, whom she had with her boyfriend SCOTT DISCICK in 2009. She first announced that she and Discick were expecting their second child in November last year, with the due date scheduled for early July. Kourtney is the eldest of the four Kardashian siblings, the offspring OF KRIS JENNER and defence attorney ROBERT KARDASHIAN.