Kim Kardashian and sisters Kourtney and Khloé congratulate sister Kylie Jenner on the birth of second child… after she announced it’s a boy

Kim Kardashian and her sisters were among the first stars to congratulate their youngest sister Kylie Jenner on Sunday after she announced the birth of her second child.

Kim, 41, and sister Kourtney, 42, and Khloé, 37, all left adoring comments on Kylie’s Instagram post, which featured a sweet black and white pH๏τo of her baby son’s hand being gripped by his big sister Stormi Webster, four.

The family members kept most of their comments brief and filled with emojis, while seemingly saving more substantial congratulations for when they got to see the new baby in person.

Kim led her sisters by simply commenting with a baby angel emoji and a blue heart.

‘Mommy of two life,’ gushed Kylie’s oldest sister Kourtney Kardashian, who added a red heart and praying hand emojis.

Khloé marked her love for Kylie and her new nephew with several blue hearts.

All three have children of their own. Kim has four young children — whom she’s lately been feuding with her estranged husband Kanye West over — including North, eight; Saint, six; Chicago, four; and Psalm, two.

Earlier in January, Kylie celebrated Stormi’s fourth birthday during a joint party that was also for Chicago, who had turned four on January 15.

Kourtney’s children are the oldest of the bunch. She shares Mason, 12; Penelope, nine; and Reign, seven, with her former partner Scott Disick.

Khloé currently has a single daughter, three-year-old True Thompson, whom she shares with her ex Tristan Thompson.

The couple’s most recent split came in January of last year, but the on–off couple seemed to be off forever after a paternity test confirmed that he fathered a child with Maralee Nichols, who sued him for child support.

He had previously denied that that baby — which arrived on December 1 — was his, though he admitted to having Sєx with Nichols during a period when he was back with Khloé.

Kylie’s partner Travis Scott was among those commenting on her Instagram post. He added a blue heart to confirm that it was a boy, along with several brown hearts.

Her mother Kris Jenner also added the sweet comment, ‘Angel Pie.’

Several of Kylie’s close friends and confidants joined in in the comments.

Her bff Stᴀssie Karanikolaou wrote, ‘Angel baby,’ and added a heart, while her friend Heather Sanders post praying hands and a white heart and her pal Gregory Carter wrote, ‘beautiful mama & beautiful baby #2.’

Jen Atkin, who has styled hair for Kylie and her famous sisters, commented with several blue hearts.

Kylie’s longtime friend Hailey Bieber (who’s also Kendall Jenner’s bff) posted misty-eyed emojis.

Kim’s friend Olivia Pierson commented with, ‘Congratulations baby!!’ followed by a lovestruck emoji and a heart.

Khloé’s bff Malika Haqq enthused with ‘AMEN,’ and the makeup artist Ariel Tejada commented twice.

‘Congratssss,’ he wrote, adding lovestruck emojis, before adding, ‘Can’t wait to meet the little angel.’

Kylie’s superfan Johnny Cyrus gushed, ‘Congratulations Kylie!!!! Beyond happy for you!!!’

Khadijah Haqq McCray, Malika’s twin sister, wrote, ‘We love you baby!!’

Kylie’s friend Yris Palmer simple commented with several white hearts.

Kim also shared her congratulations in the physical world.

Kylie posted a pH๏τo of some of the flowers she received, including a vase of pale purple roses from Kim Kardashian and her children that featured a short message placed on top.

‘Congratulations Travis, Kylie and Stormi!’ Kim wrote.

‘We are so excited and love you so much,’ she added, signing off with, ‘Kim, North, Saint, Chicago and Psalm XOXO.’