John Legend and Chrissy Teigen’s daughter Luna Simone is one loving big sister!
On Tuesday, the 2-year-old tot decided to give her little brother Miles Theodore, 4 months, a sweet smooch on the forehead while the two were playing side by side.
The adorable moment was caught on camera by Teigen, 32, who happened to be putting together her daughter’s dollhouse at the time. Luna was wearing a blue princess dress, while Miles hung out in an exersaucer.
“Awww,” Teigen said after the kiss, later posting the video to her Instagram Story.
Want all the latest pregnancy and birth announcements, plus celebrity mom blogs? Click here to get those and more in the PEOPLE Parents newsletter.
View this post on InstagramA post shared by LUNA (@babylunasimone) on Oct 2, 2018 at 6:39pm PDT
View this post on InstagramA post shared by chrissy teigen (@chrissyteigen) on Sep 29, 2018 at 7:27pm PDT
RELATED: Chrissy Teigen Opens Up About Food, Family and Wanting a “Ton of Kids”
Teigen had her hands full with construction on Tuesday as she built Luna’s dollhouse.
“We’re doing it again,” she joked at the start of the process, later showing the complete dollhouse — and a handful of screws and bolts left behind.
“These are left but I don’t care,” she said. “It’s perfect. It’s so big.”
RELATED VIDEO: Chrissy Teigen Says Because of Her Postpartum Depression Cooking “Felt like Torture”
Of course, fans following Teigen on social media have seen the model and cookbook author embrace family time before. And though her two kids, flourishing cooking career and hosting gig on Lip Sync Battle keep her busy, she and Legend, 39, still want to expand their family.
“John wants however many kids I want. That’s the good thing with John — he is down for it,” Teigen told PEOPLE in September. “Are we ready right now? No! I really love having two, but I think when I’m 70, I’ll look back and say, ‘Oh, I wish I had more.’ I can’t see myself regretting having a ton of kids.”
View this post on Instagramwe made it home! (photo for photo purposes, not approved seating by the FAA)
A post shared by chrissy teigen (@chrissyteigen) on Aug 18, 2018 at 9:50am PDT
View this post on InstagramA post shared by John Legend (@johnlegend) on Sep 23, 2018 at 4:39pm PDT
RELATED: Chrissy Teigen Reveals John Legend is the Pushover Parent: “He Needs to Learn to Say No”
Making Teigen’s dreams of a big family a reality is something that will take planning. After struggling with infertility, she became pregnant with both Luna and Miles through in vitro fertilization.
“Miles was actually made at the same time as Luna,” Teigen told PEOPLE in September. “They were sharing the same little petri dish together. It’s crazy.” And with a number of embryos left “on ice,” there are more siblings-to-be waiting when the time is right.
If she were to conceive naturally, though, “it’d be awesome,” Teigen added. “I can’t even fathom it because it’s never happened to me. I’m totally fine with it not happening because I’ve been in a position where we’ve been able to control it — the timing and scheduling. It would be chaos otherwise — but I love chaos too.”