Kanye WestThe former executive/personal assistant adds to her previous claims about the mogul…not only does she claim she was sexually harassed by Ye, but she also claims the rapper drugged her during a studio session she co-hosted Diddyto.

Lauren Pisciotta –WHO filed a lawsuit against against Kanye in June, alleging that he fired her after he sent vile text messages and videos containing sexual content — and amended the lawsuit with several new allegations … including that she attended a studio session with the “Donda” rapper and Diddy took part.

Pisciotta says she and her former artist management client – whose name is not mentioned in the lawsuit – were invited by Ye to the session, which he co-hosted with Diddy.

According to the lawsuit, shortly after she arrived, she and others present “were served drinks, followed by the announcement that everyone would have to drink if they wanted to stay.”

LP says she was drinking, but… “After a few small sips of the drink, which was poured by a studio assistant at the direction of Kanye West, aka Ye, and then served to her by Kanye West, Plaintiff suddenly began to feel disoriented.”

Pisciotta says she woke up the next day remembering almost nothing of what happened at the alleged studio session and feeling “immensely ashamed and embarrassed.”

LP says years later, when she was working with Kanye, she claimed West brought up the night in question… saying they had met and previously providing further details of the alleged incident.

Before Kanye allegedly revealed these details, Lauren said she thought she had simply been duped and embarrassed herself at a work event.

As we told you… Lauren has already sued Kanye for allegedly sending her dirty text messages in which she claims he wrote things like, “See, my problem is that I want to fuck, but after I fucked me.” I want a girl to tell me how hard they were fucked while I was fucking her. Then I want her to cheat on me…” followed by even more graphic language.

Pisciotta also claims Kanye masturbated while on the phone with her… and he allegedly became fixated on her boyfriend’s penis size.

Diddy was arrested last month and charged with conspiracy to commit racketeering, sex trafficking by force, fraud or coercion and transportation for prostitution. He has denied all serious allegations of sexual assault made against him.

Of note…Lauren claims Kanye drugged her at the studio session co-hosted by Diddy. She doesn’t accuse Diddy of any alleged wrongdoing.