Jennifer Lopez and Ben Affleck Passionately Kiss Through Their Masks at the 2021 Met Gala

Jennifer Lopez and Ben Affleck packed on the PDA as they continued to show off their rekindled romance at the 2021 Met Gala

Hot off their Internet-breaking appearance at the Venice Film Festival, Jennifer Lopez and Ben Affleck marked another relationship milestone — their first Met Gala!

The couple didn't shy away from showing their affection for one another at the Metropolitan Museum of Art's Costume Institute Gala on Monday.

While Affleck let Lopez own the spotlight solo on the red carpet, he quickly joined her inside the event, where the couple shared kisses through their masks.

They also wore the same designer. Both stars adhered to the event's In America: A Lexicon of Fashion theme, with Affleck keeping it simple in a Ralph Lauren tuxedo and Lopez bringing her signature glam to the carpet in a custom, dark brown Ralph Lauren gown with a plunging neckline and thigh-high slit. The dress featured a Couture bustier, crystal embroidery, braided leather trim, and took a team of fifteen artisans over twelve days to create, according to the brand.

Ben Afleck and <a href="" data-inlink="true">Jennifer Lopez</a>
Jamie McCarthy/MG21/Getty
Ben Afleck and <a href="" data-inlink="true">Jennifer Lopez</a>
Kevin Mazur/MG21/Getty

Lopez completed the look with a custom, hand-made faux fur cape featuring a mix of leather, suede, and shearling fringe along with a spattering of crystal beadwork that took over 200 hours to finish.

Her styling team (Mariel Haenn and Rob Zangardi) added a combination of vintage accessories, including a Navajo-stamped silver ring and silver jewelry from the Ralph Lauren archives.

Lopez also relied on her glam squad to pull together the look. Hairstylist Lorenzo Martin pulled her hair back into a wavy ponytail and makeup artist Scott Barnes created a warm, bronze makeup look. Tanning artist Isabel Alysa amplified Lopez's signature J.Lo glow before the carpet and Tom Bachik gave her "super clean perfectly manicured" nails.

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Theo Wargo/Getty

Lopez last had a major Ralph Lauren red carpet moment at the 2019 CFDA Awards, where she accepted the Fashion Icon Award. The iconic American designer also grew up in Bronx, New York.

Be sure to check out all of PEOPLE's Met Gala coverage to get the latest news on fashion's biggest night.

Affleck and Lopez's Venice Film Festival date night last week marked their return to the carpet for the first time in over 15 years.

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The couple made a show-stopping entrance at the premiere of the actor's new film, The Last Duel — their first red carpet appearance since rekindling their romance earlier this year.

Lopez (who previously dated Alex Rodriguez) and Affleck (who had split from Ana de Armas) rekindled their romance in April before going Instagram official in July for the singer's birthday. A source previously told PEOPLE they "are in it for the long run" after the two brought their respective children to the Magic Castle in L.A.

<a href="" data-inlink="true">Ben Affleck</a> and <a href="" data-inlink="true">Jennifer Lopez</a>
Ben Affleck and Jennifer Lopez. Pascal Le Segretain/Getty

"It's just a natural step that they all spend time together with the kids," the source added.

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Affleck has three children with ex-wife Jennifer Garner: daughters Violet, 15, and Seraphina, 12, and son Samuel, 9. Meanwhile, Lopez shares twins, Emme and Max, 13, with ex-husband Marc Anthony.

The Costume Institute Gala at the Metropolitan Museum of Art was delayed from its usual scheduled date on the first Monday in May after last year's event was cancelled due to the COVID-19 pandemic. This year's guests were required to provide proof of vaccination and wear masks at all times, except for when drinking and eating.

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