Chrissy Teigen Shares Daughter Luna Getting a 'Gold Medal in Momming' Baby Sister Esti

Steve Granitz/WireImage; Chrissy Teigen/Instagram Chrissy Teigen’s little girls share a special bond. In the photo, Luna sits on a blanket, with her bento box-style lunch box and water bottle laid in front of her as she feeds Esti, who takes her bottle with her eyes closed. “Luna at her school Olympics, getting a gold medal in momming,” Teigen captioned the shot. Never miss a story — sign up forPEOPLE’s free daily newsletterto stay up-to-date on the best of what PEOPLE has to offer, from juicy celebrity news to compelling human interest stories.

Chrissy Teigen Shares Epic Modeling Photos from 15 Years Ago Wearing Her Own 'Random Clothes'

Photo: Stefanie Keenan/Getty Chrissy Teigenis known for sharing a behind-the-scenes look at her life with her massive social media following, whether that’s posting cooking videos featuring herCravingsrecipesor an intimate look at her sweet relationship with husbandJohn Legendand their two children (daughter Luna, 5, and son Miles, 2). But before building a lifestyle empire, Teigen was a hugely successful model, earningSports Illustrated Swimsuit’scoveted “Rookie of the Year” title in 2010 and appearing in the franchise’s 50th anniversary issue five years later.

Chrissy Teigen Shares First Close-Up Photo of Daughter Esti's Face: 'Out Here Lookin Like a Baby'

TheCravingsauthor shared a photo of newborn daughterEsti MaxineonInstagramTuesday, showing the infant lying in her arms, asleep and wrapped in a gray blanket. Teigen, 37, shares daughters Esti and Luna Simone, 6½, as well as sonMiles Theodore, 4½, with husbandJohn Legend. Never miss a story — sign up forPEOPLE’s free daily newsletterto stay up-to-date on the best of what PEOPLE has to offer, from juicy celebrity news to compelling human interest stories.

Chrissy Teigen Shares First Photo of Baby No. 4, Son Wren: 'Incredible Gift'

In the photo, Wren sleeps as he’s wrapped in a white blanket with stars, his full of head of hair sticking straight up. “💕💕💕💕,” Teigen captioned her post. Teigen’s post included a lengthy description of her process with surrogacy, noting that she’s “always wanted four children.” Chrissy Teigen/ Instagram The couple is already parents to daughtersEsti, 5 months, andLuna Simone, 7, and sonMiles Theodore, 4. Never miss a story — sign up forPEOPLE’s free daily newsletterto stay up-to-date on the best of what PEOPLE has to offer, from juicy celebrity news to compelling human interest stories.

Chrissy Teigen Shares First Photo of Her and John Legend's Baby Girl, Esti Maxine: 'Full of Love'

“Daddy sheds nightly tears of joy seeing Luna and Miles so full of love, and I am learning you still need diapers with a c-section!? We are in bliss,” she continued. “Thank you for all the love and well wishes - we feel it all! X.” Never miss a story — sign up forPEOPLE’s free daily newsletterto stay up-to-date on the best of what PEOPLE has to offer, from juicy celebrity news to compelling human interest stories.