AceShowbiz - Sean "P. Diddy" Combs' legal troubles continue to add up. The "Gotta Move On" rapper is facing a new lawsuit filed by model Crystal McKinney, who claimed he drugged and sexually assaulted her in the past.

In the suit obtained by TMZ, Crystal claimed that she was invited to a Men's Fashion Week event at Cipriani Downtown in NYC in 2003. The then-22-year-old beauty met Puff at the event and he invited her back to his studio.

Shortly after their arrival, Diddy and several colleagues reportedly were drinking Hennessy and passing around joints. Crystal admitted that she took a hit, which she said was "very powerful," and felt as if she was floating. She alleged that the joint had been laced with a narcotic or other drug.

Crystal went on to claim that Diddy, who has been under fire since a video of him abusing his ex Cassie leaked, demanded she follow him to the bathroom, where he allegedly forced himself on her, began kissing her and shoved her head down to his crotch before commanding her to "suck it." Although she refused, the disgraced hip-hop mogul reportedly pushed her head down and forced oral sex.

The plaintiff started walking away but then felt woozy and lost consciousness. She said the next thing she knew she woke up in a taxi and realized she had been sexually assaulted.

It remains to be seen whether Crystal is referencing the alleged incident in the bathroom, or another sexual assault that could have occurred while she was passed out. She's asking unspecified damages.

Crystal claimed she was subsequently blackballed from the modeling industry, got severely depressed and attempted suicide in 2004. She decided to take legal action against Diddy upon seeing news of the lawsuits filed by Cassie and other women.