Big Sean Celebrates Jhené Aiko's Daughter and 'Newly Big Sis' Namiko on Her 14th Birthday: Photo

Big Sean Celebrates Jhené Aiko's Daughter, 'Newly Big Sis' Namiko, on 14th Birthday
Big Sean Celebrates Jhené Aiko's Daughter, 'Newly Big Sis' Namiko, on 14th Birthday
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Big Sean/Instagram

Big Sean is sharing his love for Jhené Aiko's daughter.

On Monday, the rapper, 34, shared a birthday tribute to his girlfriend's daughter, Namiko Love (who goes by the nickname "Nami"), on his Instagram Story in celebration of her 14th birthday.

"Love you Nami! You're one of the smartest, coolest people on 🌎," he captioned the shot where the two pose together as Big Sean holds newborn son Noah Hasani.

"My anime plug and newly big sis! This world is a much better place with you in it! Big 14!" added Big Sean.

The newly minted mom of two, 34, also shared a birthday tribute for her teen, writing, "Happy Birthday Namiko! 🥰 the most beautifulest girl in the world 😍."

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Pregnant Jhené Aiko Joins Big Sean on a Sentimental Trip to His Childhood Homes in Detroit
Pregnant Jhené Aiko Joins Big Sean on a Sentimental Trip to His Childhood Homes in Detroit

Renee Rodriguez │ @byreneerodriguez

RELATED: Jhené Aiko and Big Sean Welcome Baby Boy After 24 Hours of Labor – See the Photos

Celebrating her daughter as "the coolest person I know 😎," Aiko raved about her "animal loving, actress, anime expert, rockstar, skater girl, artist."

"I'm so proud of everything you are 🥲 you may be 14 today, but you will always be my baby 🥹 I love you!!! 💙," she added.

Aiko and her rapper beau welcomed their first baby together, Noah on Nov. 8, according to an Instagram post the singer shared.

"✨11/08/22✨💙Noah Hasani💙," she wrote alongside the series of pictures. "After 24 hours of labor, a total lunar eclipse, and while it was pouring rain… he came 🥹 my baby Yoda, my Sani 💙."

Jhené Aiko and Namiko Love
Jhené Aiko and Namiko Love

Jhené Aiko Instagram hené Aiko and Namiko Love

In early July, PEOPLE confirmed that Aiko was expecting a baby with Big Sean. "The couple is overjoyed and looks forward to this next chapter," Aiko's rep told PEOPLE.

Aiko and Big Sean first met in 2012 and developed a close friendship, collaborating on several songs together before releasing a joint album, Twenty88, in 2016. While doing publicity for the album, the pair's chemistry became apparent, with the rapper telling Billboard, "I love her and I know she loves me." They have dated on and off in the years since.

On July 15, Aiko confirmed her baby news on Instagram, sharing a nude maternity photo of herself cradling her stomach set against an edited celestial background.

She captioned the post with a shooting-star emoji, tagging photographer Renee Rodriguez. Aiko then shared another intimate snap of her and Big Sean together, both shirtless and holding her bump.