Timothee Chalamet’s older sister Pauline Chalamet surprised fans with a breathtaking reveal nearly three months after quietly welcoming her first child in September. 

The Sex Lives of College Girls actress, 32, took to Instagram with a New Year’s photo carousel showcasing her most cherished moments from 2024.

Among the highlights were a stunning nude mirror selfie from her pregnancy and a heartfelt snap of her breastfeeding, marking her first social media acknowledgments of her journey to motherhood.

‘Moments and books and moments 2024,’ she captioned the post.

The gallery also included heartwarming snapshots, like an adorable sibling moment with Timothée.

Pauline welcomed her baby with longtime partner Rhys Raiskin, whose name and details about their little one remain under wraps.

+5
View gallery

Timothee Chalamet ‘s older sister Pauline Chalamet surprised fans with a breathtaking reveal nearly three months after quietly welcoming her first child in September; (Pauline and Timothee in 2018)

+5
View gallery

The Sex Lives of College Girls actress, 32, took to Instagram with a New Year’s photo carousel showcasing her most cherished moments from 2024.

The exciting news first surfaced in October during a viral moment at Paris Fashion Week.

At the Stella McCartney show, a candid video captured Pauline sharing the life update with Barbie director Greta Gerwig.

‘I just had a baby!’ she exclaimed, met with Gerwig’s incredulous, ‘No!’

Pauline beamed, wrapping an arm around Raiskin and confirming, ‘We just had a baby. Three weeks ago.’

Yeah!’ Chalamet said before putting an arm around her beau and sharing, ‘We just had a baby. Three weeks ago.’

The new mom didn’t reveal the baby’s name, gender, or exact birth date.

Chalamet first revealed her pregnancy by quietly debuting her baby bump during Paris Fashion Week in June.

She appeared in a photo uploaded to friend Jeanne Damas’ Instagram Stories.

The low-key TV star never publicly announced that she was expecting and has generally kept quiet on her love life.

It’s unknown how long Pauline has been romantically involved with Rhys.

But according to Just Jared, the couple was spotted together on a 2022 New York City lunch date with Timothee, 28.

Pauline is best known for her portrayal of Kimberly in the HBO Max series, Sex Lives of College Girls.

The show follows four 18-year-old freshman roommates at Essex College in Vermont.’

An IMDb synopsis describes its characters as ‘a bundle of contradictions and hormones’ who ‘are equal parts lovable and infuriating.’

+5
View gallery

Among the highlights were a stunning nude mirror selfie from her pregnancy and a heartfelt snap of her breastfeeding, marking her first social media acknowledgments of her journey to motherhood

+5
View gallery

The gallery also included heartwarming snapshots, like an adorable sibling moment with Timothee

+5
View gallery

Pauline welcomed her baby with longtime partner Rhys Raiskin, whose name and details about their little one remain under wraps; (seen in September)

The first season of the show premiered in 2021, and in December 2022 the series was renewed for a third season.

Pauline opened up about following her passion for acting and starring in the show in a 2022 interview with The Cut.

She said while doing a scene for the play Antigone in high school, ‘something clicked.’

‘I was so prepared. We’d really worked, and it was the first time I understood what the work was of bringing a scene and a character to life,’ she recalled.

Chalamet added, ‘I always enjoyed acting but didn’t put all my energy into it until relatively recently, when I was living full time in Paris.’