Kim Kardashian and friend Blac Chyna show off their backsides in new Instagram selfie. Credit: Instagram; Bauer-Griffin/GC Images/Getty Images

These days Kim Kardashian lets her pictures do the talking. The 33-year-old reality star has enjoyed showing off her post-pregnancy weight loss to her fans and critics alike after giving birth to daughter North West in June 2013. See Kim's best bikini pictures here.

After her now-infamous October 2013 swimsuit selfie hit the Internet, Kardashian was at it again in the New Year, posting two revealing images on Instagram with friend Blac Chyna

"Getting right for the new year," Kardashian captioned a picture of her abs and cleavage. 

She followed that picture up a booty shot, showing off her famous backside. Naturally, commenters are already swearing that the images are photoshopped, but after her bikini-clad cover of Us Weekly in December 2013, Kardashian seems to look au naturel in these shots. 

"Kim feels confident again," a source told Us Weekly in December. "She worked really hard and is so motivated to stay fit."