"Chanel and I are very happy campers we're in AZ for the holidays #cocochanel #babychanelnicole," Coco captioned one snap.
Another photo depicted the pair strolling by the pool. "Will the real Coco please stand up!" the proud mama wrote.
Little Chanel, who turned one on Nov. 28 with an epic first birthday party, also has her own Instagram with several thousand followers. "Mom and I making monkey noises and twinning like usual," said the caption of one shot.