Timothée Chalamet is one proud boyfriend.

The “Dune” actor couldn’t contain his excitement when girlfriend Kylie Jenner made a surprise cameo during the Victoria’s Secret Fashion Show 2026 Sunday night wearing a stunning $50 million Fantasy Bra.

A screenshot from the event’s livestream showed Chalamet — looking as suave as ever in a pair of sunglasses — smiling and clapping for the “Kardashians” star.

He was seated alongside Jenner’s mom, Kris, who looked on with a smile of her own as she filmed her youngest daughter’s big moment on her iPhone while seated next to beau Corey Gamble.

Timothée Chalamet (seen above next to Kris Jenner and Corey Gamble) smiled and clapped for girlfriend Kylie Jenner as the “Kardashians” star walked the runway at the Victoria’s Secret Fashion Show 2026 Sunday night. YouTube/Victoria's SecretJenner wore a $50 million Fantasy Bra (pictured here) as she walked her first runway for the iconic lingerie brand. Matt Baron/BEI/Shutterstock

The evening marked Jenner’s first-ever time walking in the iconic lingerie brand’s famous runway show — and she even got a pair of wings to mark the occasion.

Jenner’s Fantasy Bra is the first for Victoria’s Secret since 2018 and the most expensive one ever.

The piece of fashionable art features a center yellow diamond worth an estimated $22 million, per the jeweler, and features “every cut to exist.”

Its price tag is said to be around $50 million, according to Vogue.

Chalamet and Jenner quietly started dating in 2023 and have rarely addressed their relationship despite often showing up to support each other at important events in their respective careers.

Jenner also wore a pair of the brand’s trademark angel wings. FilmMagicPer the jeweler, the center yellow diamond on the Fantasy Bra is worth an estimated $22 million. Matt Baron/BEI/Shutterstock

Jenner most recently joined Chalamet at the 2026 Academy Awards in March, where he was up for Best Actor and Best Picture for the film “Marty Supreme.”

It was the last stop on an awards season run that began with the film’s premiere in December 2025 and included stops at the Critics Choice Awards, Golden Globes and BAFTA Film Awards throughout early 2026 — all of which Jenner showed up to for Chalamet.

Jenner even attended several New York Knicks games with Chalamet during the team’s most recent season, which ended with them winning the NBA championship.

The “Call Me by Your Name” actor was there when the Knicks clinched the big win against the San Antonio Spurs — the team’s first championship in 53 years, having last taken home the trophy in 1973 — and attended the celebration parade in New York City, though Jenner wasn’t with him for either milestone.

Chalamet and Jenner (pictured above at the 2026 Academy Awards) quietly began dating in 2023 and have rarely addressed their relationship. Getty Images The Academy via Getty ImagesThe two (seen here at the 2026 Vanity Fair Oscar Party) have often showed up to support each other at important events in their respective careers. Getty Images for Vanity Fair

Chalamet hinted at what might come next for him and Jenner in a Vogue cover story in November 2025, noting that children “could be on the radar.”

Elsewhere in the same interview, the actor said he doesn’t share details about his relationship with Jenner not out of “any fear,” but simply just because he doesn’t “have anything to say.”

However, in an episode of “The Girls” in August, Jenner admitted she doesn’t want to add to her brood — which already consists of daughter Stormi, 8, and son Aire, 4, whom she had with ex Travis Scott.