Diddy's baby mama has pissed off ANOTHER nanny ... who claims Kim Porter treated her like crap and stiffed her out of some serious dough ... and now the ex-help wants Diddy's company to foot the bill.
Nanny #2 Amanda Jansen has filed a lawsuit in L.A. County Superior Court, claiming Porter hired her in 2011 to care for Diddy's children ... but her job quickly turned into that of a full-service round-the-clock housekeeper.
In addition to caring for the kids, Jansen claims she worked well over 100 hours a week doing all sorts of chores -- without ever being given a proper break.
Jansen -- who claims she was hired as live-in help -- also claims she was never given a room with a working lock ... had no furniture other than a bed and a computer desk ... and was forced to live out of a suitcase.
In the suit, Jansen claims she eventually complained about her crazy schedule -- and was fired as a result. Now, she's suing for overtime, wrongful termination, and more. Sources tell us she's looking for a 6-figure payout.
So why is Diddy involved? Jansen claims she was paid directly by Diddy's company, Bad Boy Worldwide Entertainment ... and therefore, the company should be on the hook.