Bianca Censori Wears Tiny Bikini Top to Lunch with Kanye West

Kanye West and Bianca Censori are dressed for the hot summer weather ... 'cause she settled on a tiny metallic bikini covering just the bare minimum of her boobs!

The rapper and his wife hit up Bludso's BBQ in Los Angeles Saturday ... and, ya gotta check out the pics 'cause BC's top's putting in some hard work to contain her chest.

Bianca's bikini's really only covering her nipples, quite frankly ... and, her spandex short bottoms ain't hiding much downstairs either.

She's got a hat pulled over her eyes, seemingly to keep a low profile -- unclear how much that helped given her outfit.

Bianca's better half dressed more conservatively ... rocking a hoodie and athletic shorts while heading into the restaurant.

The two also checked out a movie together later on in the evening ... apparently watching "A Quiet Place: Day One" -- though the appearance of the stars probably caused a bit of noise in the theater when they arrived, you'd imagine.

The two are keeping their dating life fresh it seems ... like we told you, the two were photographed hanging out at a science museum in the Bay Area last weekend and before that, they attended Paris Fashion Week together.