New photos showed Bianca rolling around in a pit of dollar bills while wearing her revealing birthday attire, which garnered some negative reactions from fans.

The former Yeezy designer was seen on the floor covered in bills, with some on her back as if someone had thrown a few on top of her.

She had on the same outfit she had worn to dinner, where she nearly suffered a wardrobe malfunction alongside her husband Kanye West, 46.

While spending her special day in Sin City, Bianca was seen blowing out her birthday candles while out to dinner at an upscale eatery.

As she leaned down, her breasts nearly spilled out of her barely there bra top she wore for the occasion.

The back of Bianca’s tiny top had what appeared to be angel wings attached, which were matched with her fully beaded, black headpiece.

BAREFOOT BIANCA

Other photos from the weekend caught the couple – who secretly tied the knot last December – walking hand in hand through a Las Vegas casino.

Bianca matched her top with what appeared to be a bathing suit coverup on the bottom and was seen walking without shoes throughout the hotel.

She seemed to be taking after her rapper husband, who has been known to go without shoes over the past year – opting for his Yeezy sock shoes.

Taking to Reddit, critics showed distaste for her decision to go barefoot.

“I don’t care how rich you are but you should never walk around Vegas barefoot! I’m just imagining her stepping on tiny pieces of glass,” one person wrote.

“Gross. Imagine walking barefoot on carpet in a casino,” a second added.

“Kanye loves to humiliate his muses,” suggested another commenter.

‘MOST AMAZING STEP MOM’

Despite some backlash on her outfit of choice, Kanye took to Instagram with a sweet tribute to commemorate his wife’s birthday last week.

“Happy birthday to the most beautiful super bad iconic muse inspirational talented artist masters degree in architecture 140 IQ loving by my side everyday when half the world turned their backs on me,” he wrote.

Kanye – who shares four children with ex-wife Kim Kardashian – also called the designer the “most amazing step mom to our children.”

“… I love you so much thank you for sharing your life with me,” he added.

Kanye followed up the tribute with a photo of Bianca smiling in lacy leggings shortly after, captioning the pic, “I miss you when I wake up before you.”

He continued to share more photos of Bianca to his Instagram grid, including some near-nudes and her infamous pillow street snaps.

“Yall know who ran the summer,” he wrote alongside the pillow photo.

5Bianca nearly suffered a wardrobe malfunction in a barely there bra top while blowing out candles during her birthday dinnerCredit: Instagram/jeen__yuhs_5The model was slammed by critics for walking through a Las Vegas casino without shoes on during her birthday weekendCredit: Instagram/jeen__yuhs_5Kanye took to Instagram with a tribute for his wife’s birthday as he called her the ‘most amazing stepmom’ to his four children