Bianca, who also had a new short blonde hairstyle, was wearing nude heels with a glamorous coat that covered her entire upper body and went down to her mid-thigh.
Although Bianca went for a dressy look, Kanye kept it casual in a white hoodie and matching sweats.
Her husband emerged from their car first and stood outside waiting for his wife while she got out of the vehicle before they were ushered inside.
The couple were attending a private viewing of the Maison Margiela Artisanal 2024, however once inside Bianca got rid of her coat and was wearing just lace pasties and a thong underneath.
Last week the pair were also seen going shopping in the upmarket area of Ginza in the Japanese capital.
Wearing heels and a sheer pair of black tights – Bianca’s bum and dark underwear were almost completely on display.
She paired this with a revealing black cropped halter neck, which she was photographed adjusting to make sure that she didn’t have an awkward wardrobe malfunction.
In contrast, the dad-of-four was totally covered up again for their outing, in a black shirt and dark jeans.
Although the couple – who first met when she began working at Yeezy in 2020 – were rumoured to be in the process of parting ways last month, they made an PDA-heavy appearance in Japan just days later, where they were photographed kissing on an escalator.
Got a story?
If you’ve got a celebrity story, video or pictures get in touch with the Metro.co.uk entertainment team by emailing us celebtips@metro.co.uk, calling 020 3615 2145 or by visiting our Submit Stuff page – we’d love to hear from you.