It’s been one year sinceKendall JennerandDevin Bookerofficially got together, and their relationship is continuing to grow stronger every day.“She is crazy about him. She has never looked happier. Her whole family loves Devin too,” a source tells PEOPLE about the model and Phoenix Suns shooting guard, who recentlycelebrated their first anniversary.“Devin is such a cool guy. He is very low-key and doesn’t want to be a celebrity. He is very sweet to Kendall,” the insider shares.Jenner, 25, was first linked to Booker, 24, in April 2020, but the pair didn’tmake their relationship Instagram officialuntil this past Valentine’s Day. At the time, the model shared a sweet photo on her Instagram Story of the twosome cozying up.“They got serious quickly last summer. Kendall visited him a lot in Phoenix. After Devin finished the season, he stayed with Kendall in L.A.,” the source says.Adds the source: “They spent the whole summer together and even vacationed withJustin [Bieber]and Hailey [Baldwin Bieber]. They’re still young, but everyone is rooting for them. They are a great couple.“Kendall Jenner and Devin Booker.Kendall Jenner/InstagramNever 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.In celebration of their milestone anniversary over the weekend, Jenner and Booker both shared photos on their respective Instagram Stories of intimate moments taken throughout the course of their relationship.This past April, a source told PEOPLE thatthis is “the happiest Kendall has ever been in a relationship.“Though the source noted that theKeeping Up with the Kardashiansalum “is very private about their relationship,” it is “obvious that they have something special going on.“Kendall Jenner, Devin Booker.Cindy Ord/Getty; Michael Gonzales/NBAE via GettyEarlier this year, Jenner revealed onKUWTKthat she’s interested in having children soon.“I’m the only one in my family who does not have a kid,” shesaid. “During quarantine and just kind of sitting at home, naturally, you get pretty bored and start thinking about a lot of things.“She added, “Sometimes I just, like, see [Kylie Jenner’s daughter]Stormiand [Khloé Kardashian’s daughter]Trueand [Kim Kardashian’s daughter]Chicagoall playing together and I’m just like, ‘Ugh.’ I want kids, badly. Soon, too.”

It’s been one year sinceKendall JennerandDevin Bookerofficially got together, and their relationship is continuing to grow stronger every day.

“She is crazy about him. She has never looked happier. Her whole family loves Devin too,” a source tells PEOPLE about the model and Phoenix Suns shooting guard, who recentlycelebrated their first anniversary.

“Devin is such a cool guy. He is very low-key and doesn’t want to be a celebrity. He is very sweet to Kendall,” the insider shares.

Jenner, 25, was first linked to Booker, 24, in April 2020, but the pair didn’tmake their relationship Instagram officialuntil this past Valentine’s Day. At the time, the model shared a sweet photo on her Instagram Story of the twosome cozying up.

“They got serious quickly last summer. Kendall visited him a lot in Phoenix. After Devin finished the season, he stayed with Kendall in L.A.,” the source says.

Adds the source: “They spent the whole summer together and even vacationed withJustin [Bieber]and Hailey [Baldwin Bieber]. They’re still young, but everyone is rooting for them. They are a great couple.”

Kendall Jenner and Devin Booker.Kendall Jenner/Instagram

Kendall Jenner and Devin Booker

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.

In celebration of their milestone anniversary over the weekend, Jenner and Booker both shared photos on their respective Instagram Stories of intimate moments taken throughout the course of their relationship.

This past April, a source told PEOPLE thatthis is “the happiest Kendall has ever been in a relationship.”

Though the source noted that theKeeping Up with the Kardashiansalum “is very private about their relationship,” it is “obvious that they have something special going on.”

Kendall Jenner, Devin Booker.Cindy Ord/Getty; Michael Gonzales/NBAE via Getty

Kendall Jenner, Devin Booker

Earlier this year, Jenner revealed onKUWTKthat she’s interested in having children soon.

“I’m the only one in my family who does not have a kid,” shesaid. “During quarantine and just kind of sitting at home, naturally, you get pretty bored and start thinking about a lot of things.”

She added, “Sometimes I just, like, see [Kylie Jenner’s daughter]Stormiand [Khloé Kardashian’s daughter]Trueand [Kim Kardashian’s daughter]Chicagoall playing together and I’m just like, ‘Ugh.’ I want kids, badly. Soon, too.”

source: people.com