Michael said he tried contacting Kourtney after seeing a photo of Mason and believes he's the biological father of the boy who is now 3 and a half years old.
According to TMZ, the model has filed papers at a Los Angeles court asking a judge to order DNA tests for Kourtney, Mason and Scott Disick. He's also asking for joint custody of the boy.
Kourtney's lawyer says the accusation is absurd, claiming Michael is only looking for money and fame "His claims are absurd and this is simply another shameful attempt to gain publicity and profit from fictional stories about my client. Scott Disick is Mason’s father,'