The cookbook author and model shares her four kids with husband and EGOT winner John Legend

Gilbert Flores/Variety via Getty Images; Chrissy Teigen Instagram

Chrissy Teigen’s son Wren looks adorable in a video posted to her Instagram

Chrissy Teigen’s son Wren is one smiley baby.

On Sunday, the Cravings cookbook author and model, 37, shared a round-up of photos from her past few weeks on Instagram, which included an adorable glimpse at her 5-month-old son Wren.

Showing off his entire head of hair and lying tummy down on a couch, he smiles and giggles while his mom, off camera, says, “Hi baby! Hi baby! Are you a happy boy? Are you so handsome? Yeah, yeah. Look at your hair! Oh my goodness, it only goes one way too. Yeah, you happy?”

“My life 🥹,” Teigen captioned her post.

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Related: John Legend Shares How He and Chrissy Teigen Teach Their Kids to Give Back: ‘It’s Important’ (Exclusive)

Teigen shares her four kids — Wren, Esti, 9 months, Miles, 5, and Luna, 7 — with husband and EGOT winner John Legend, 44.

Last week, Legend chatted with PEOPLE about how he and Teigen have been teaching their kids the value of giving back, which includes volunteering at their local Ronald McDonald House Charities (RMHC) in Los Angeles. The couple brought their two older kids — Miles and Luna — along as they helped cook breakfast for families staying at the house while their children received critical medical care in the area.

“This was our kids’ first time at the Ronald McDonald House. We made our mochi pancakes, one of Chrissy’s recipes,” he told PEOPLE. “And a lot of the kids that were there, some were patients, some were siblings of patients but our kids bonded with all of them quickly. They were playing basketball with them, having a good time. I enjoyed watching them.”

“We try to teach them that it’s important to give back and to help other people,” he said. “They’ve gone with us to help feed people who are hungry, they’ve gone to homeless shelters with us. We try to teach them to be appreciative of what they have and also know that there are a lot of people that don’t have the privileges that they do, so we should do what we can to help them.”

In October, Teigen shared a few videos on her Instagram Story as she gave her son Wren a bath in the sink. In the first clip, Wren was held over the basin as his full head of hair was washed. “It’s time for the cutest part of the day!” Teigen said in the video.

In the second video, Wren sat in a plastic carrier in the sink, smiling and giggling as his mom asked why he was given a bath with his socks on. As he looked up at his mom, Wren looked almost identical to his musician dad.

In September, Teigen and Legend shared a cute video with Wren, showing how they are finding it hard to keep their hands off their adorable little one.

“Kiss sandwich is back!!” Teigen captioned a video shared on Instagram where she and Legendsmothered Wren’s cheek with kisses. “Some like it more than others. (I think? I have yet to find them).”

In the second slide of the carousel, Teigen shared a photo where Wren’s face looked less than impressed with his parents’ show of affection.