Kanye's Wife Bianca's Breasts On Display in Bikini for Vegas Birthday Trip

Bianca Censori‘s been showing a lot of skin lately, and that didn’t change whatsoever for her birthday weekend … where she was in Sin City with Kanye West showing off the goods.

Ye brought wifey to Las Vegas Friday, and between yesterday and today — they’ve been hitting the town … in very little clothing, from BC’s side anyway. Exhibit A is this video of her walking around the Wynn Las Vegas casino-resort Saturday … hand-in-hand with hubby.

Check out the clip — obtained by TMZ — where you can see KW and Bianca casually strolling along as a crowd of people look on around them. There sure was an eyeful to take in.

As you can see … Bianca is wearing an incredibly skimpy bikini top, with her breasts pouring out. She’s got no shame to her game — and even giggles a little. She appeared to be wearing something similar on Friday as well … another video’s going around that shows her, Ye and their entourage singing Happy Birthday, and she’s busting out of her top there too.

This new boobs-out look matches what Bianca has been rocking lately — particularly on Ye’s IG feed, where he seems enthralled by her figure … and for good reason, she’s banging.

As we reported … Ye shouted out his wife on Saturday with several different posts, calling her the love of his life, a great muse and an awesome stepmom to his and Kim K’s children.

As for Saturday’s bare-it-all outing … we’re told they were hitting up different high-end luxury shops — like Balenciaga and Chrome Hearts, for example — so it sounds like Ye was splurging on the missus as she rings in the big 2-9.