Michael Girgenti refuses to give up.
The model - who has been making tabloid headlines since first alleging that he's the true father of Mason Dash Disick in 2009 - has resurfaced and is featured in the latest issue of Star.
And he's not gonna take it very much longer!
Girgenti has supposedly penned a heartfelt letter to Kourtney Kardashian in which he begs her to get a DNA test.
“This is Kourtney’s last chance," Girgenti tells the tabloid. "My next step will be to take her to court and sue her for a paternity test.”
Sources claim that Kourtney recently broke down and admitted to Scott Disick that she's "not absolutely certain" he's the dad, but Girgenti is looking for more.
The poor guy says he's "tired of not knowing if Mason is my son" and wants "the constant wondering to end."
So, with that in mind, we'll make this short and simple for you, Michael: Mason is not your son. Sorry. But someone had to say it.