Kylie looked typically stylish in a black trench coat with a belt which cinched in her waist, teamed with heeled boots.

Meanwhile, Timothee attempted to keep a low-profile in a black jacket and a baseball cap.

Jenner has been romancing the Beautiful Boy actor since the beginning of this year.

Smitten: Kylie Jenner and beau Timothee Chalamet looked loved-up as they stepped out in Paris together on Monday during Fashion Week – with the star sporting a large costume jewellery ring on THAT finger

Couple: The make-up mogul, 25, and the Call Me By Your Name actor, 27, were holding hands as they climbed out of a private car

This comes after the reality TV dynamo was seen cuddling up with Chalamet.

The pair were spotted side by side at the U.S. Open in New York.

The actor, 27, and the Kardashians star were spotted getting touchy-feely in the crowd while laughing and sipping drinks during the men’s singles championship match between Novak Djokovic and Daniil Medvedev.

Kylie wrapped her arm around her Timothee’s shoulders and he was snapped leaning in for a kiss.

A video posted on X showed Kylie running her fingers through Timothee’s hair.

Despite their public displays of affection, the pair dressed low-key, with Timothee wearing a black hoodie, sunglasses and cap, and Kylie also dressed in dark clothes and shades.

Chic: Kylie looked typically stylish in a black trench coat with a belt which cinched in her waist, teamed with heeled boots

Stylish: She hid her eyes behind dark sunglasses and wore dazzling costume jewellery on her ring finger

Casual: Meanwhile, Timothee attempted to keep a low-profile in a black jacket and a baseball cap

Romance: Kylie sparked engagement rumours with a dazzling ring on that finger

Their US Open date came nearly a week after they took their romance public at Beyoncé’s Renaissance World Tour concert at SoFi Stadium in Inglewood, California , with fans saying online they must be ‘getting serious’.

They were spotted kissing in a VIP box at the gig alongside stars including Tom Holland , Zendaya (Chalamet’s Dune costar), Justin and Hailey Bieber and Kylie’s sisters Kendall Jenner and Kim Kardashian.

Rapper Travis Scott , 32, who has 19-month-old daughter Aire and four-year-old girl Stormi with his ex Kylie, was also at the show.

A week before that, the pair were seen leaving Chalamet’s Beverly Hills mansion in Kylie’s Range Rover.

It’s understood Kylie’s romance with Timothee is her first since she split from ‘Sicko Mode’ rapper Travis in late-2022.

Close: They were spotted chatting outside of a lavish venue

Love life: It’s understood Kylie’s romance with Timothee is her first since she split from ‘Sicko Mode’ rapper Travis in late-2022

The duo have been linked since April, with a source telling Entertainment Tonight at the time: ‘Kylie is enjoying hanging out with Timothee and seeing where it goes.

Celebration: The couple were out celebrating Rosalía’s birthday (pictured attending the Dior show in Paris)

Kissing Kylie in a corner: Jenner has been romancing the Beautiful Boy actor since the beginning of this year.T he pair were spotted side by side at the U.S. Open in New York over the weekend where they smooched as she held onto a drink

The duo have been linked since April, with a source telling Entertainment Tonight at the time: ‘Kylie is enjoying hanging out with Timothee and seeing where it goes.

‘It’s been really fun for her because it feels a lot different than her past relationships.

‘It’s new and exciting for Kylie, and she’s having a lot of fun.’

Several fans claimed they spotted a ‘hickey’ on the ‘Kardashians’ star’s neck when she shared a carousel of pictures of herself on Instagram earlier this year.

In the snap, Kylie held her son Aire on her hip as she had one of her hands on the top of her pinned-up hair – with some of her followers noticing a small mark on the side of her neck.