Kanye West's wife Bianca Censori continues pushing boundaries as she leaves hotspot in derriere-flashing look

Pants were optional on the weekend during a date night for Bianca Censori and Kanye West.

While the controversial rapper opted to wear a pair of grey colored leather pants, the former Yeezy architect chose to leave hers at home. Instead of putting her metallic grey undies on display for photographers at Hollywood hotspot Chateau Marmont at 2 am on Sunday morning.

The 31-year-old model who enjoyed a late-night dinner following a photo shoot at the famed hotel kept it relatively tame up top, covering up with a silver fringed cardigan that was left slightly opened to show off a hint of cleavage. She then capped off her look with nude platform heels.

Her latest risque look comes weeks after she stepped out covered top to toe in New York.

The Melbourne-born star appeared nearly unrecognizable when she abandoned her signature style for a more conservative look to attend Columbia University's graduate School of Architecture, Planning and Preservation as a guest critic during the Advanced Studio IV Final Reviews.