Start 'Em Young! Chrissy Teigen gets Daughter Luna to Help Clean Up a Spill

Maria Pasquini

Chrissy Teigen is already teaching her daughter Luna Simone one of life’s most important lessons: when you make a mess, you have to clean it up.

“It’s just water,” Teigen, 31, told her 19-month-old daughter. “Can you help me?”

Bending down with a purple towel in hand, Luna followed her mother’s instructions and soaked up the excess moisture. “Thank you,” Teigen said.

On Tuesday, Teigen announced that she and her husband John Legend were expecting their second child.

Just a couple days before the big news, Legend told PEOPLE he and Teigen had been “working on” baby No. 2. Opening up to InStyle about her journey to motherhood via in vitro fertilization, Teigen explained she and her Grammy-winning husband started with 20 embryos and narrowed the number down to three after screenings.

Sources also told PEOPLE the superstar couple have been hoping to expand their family for quite some time.

“They have been planning for this for a long time. Chrissy is really excited to finally share the news,” an insider told PEOPLE exclusively about the stars.

“They are so excited to make Luna a big sister,” said another source. “They think Luna will do a great job with the baby and they’re really happy to be expanding their family.”