The 32-year-old reality star, pregnant with their first child, wore a super-short, see-through dress during the couple's outing in the Big Apple. The mom-to-be's LBD featured sheer paneling that gave a big glimpse of her undergarments.
While climbing stairs, Kardashian held down the back of her dress for modesty, but ended up giving a clear view of her underwear to West, who was following behind. She paired the babydoll dress with studded, black high-heel boots.
The 35-year-old rapper reunited with his pregnant girlfriend on Monday after last seeing each other earlier this month. (West has been living and working in Paris, France for the past several months.)
The parents-to-be are getting ready to welcome their baby in July. In the E! special, Ryan Secrest With the Kardashians: An E! News Presentation, that aired Sunday, Kardashian said she plans to keep her personal life a little more private when the baby arrives.
"I felt like I gave so much of myself publicly," she said. "And when you make mistakes it's embarrassing. I'm going to be a mom, so I feel myself getting really protective."