A paternity test has revealed Scott Disick is the father of Kourtney Kardashian's son Mason.
The 33-year-old reality TV star was asked by male model Michael Girgenti to allow Mason, three, to undergo the test, after he claimed they slept together while she and Scott, 30, were on a break in March 2009 but lab results have proved his allegations are false.
Kourtney, who has always denied Michael's allegations, told E! News: "After three-and-a-half years of lies being spread by an individual I met briefly at a photo shoot, I am setting the record straight that Scott is Mason's father. While it saddens me to have to address these ridiculous lies - especially when the truth was never in doubt - this story must be put to rest."
Scott and Kourtney also have a 13-month-old daughter Penelope.
This is not the first time the Kardashian family has been confronted by paternity allegations.