Brooke Mueller's former assistant has filed a lawsuit against her ... claiming she turned him into a "drug mule" to fuel her out-of-control habit.
Lior Masaphor wants her to pay unpaid wages, but he makes claims going way beyond that. He says he was forced to watch her twins Max and Bob while she got "so high as to be literally wasted" and engage in multiple sex acts with other people while the kids watched.
Lior says he worked for Brooke from December, 2012 to March, 2013 ... during that time she was in and out of rehab.
Assistant Claims He Was a 'Drug Mule'
8/20/2014 6:17 PM PDT BY TMZ STAFF
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