'White Lotus' star Jon Gries says Aubrey Plaza wasn't upset after he told her to fix her SAG Awards dress because her underboob was showing

• Jon Gries revealed what he whispered to Aubrey Plaza onstage at the SAG Awards on Sunday.
• Gries told Page Six he warned Plaza to adjust her cutout dress, which revealed her underboob.

Jon Gries revealed what he whispered to Aubrey Plaza at the Screen Actors Guild Awards.

On Sunday, "The White Lotus" won the SAG Award for outstanding performance by an ensemble in a drama series.

The entire cast took to the stage after winning the award, which actor F. Murray Abraham accepted on behalf of the group, at the Fairmont Century Plaza in Los Angeles.

As the cast watched Abraham accept the award, Plaza, who played Harper on season two of "The White Lotus," appeared annoyed, particularly after a whispered conversation with her costar Gries, a video of the incident shows.

Representatives for Gries and Plaza did not immediately respond to Insider's request for comment.

Gries, who took on the role of Tanya's husband Greg in "The White Lotus," spoke to Page Six on Monday about what he said to Plaza while they were onstage.

Gries said to the outlet that he first told Plaza to "look to the front" because she was "being blocked by about 15 people."

Plaza is not visible during the "The White Lotus" cast's appearance onstage until Gries guided her to an empty pocket.

A few moments later, Gries whispered to Plaza again, and she quickly put her hands on the bodice of her Michael Kors dress, which had a diamond-shaped cutout on most of the bodice.

Gries told Page Six he said to Plaza, "You might want to fix that first," as her underboob was visible through the cutout.

But the gown was designed to show Plaza's underboob, as her stylist confirmed in an Instagram comment on Monday. Photos of her on the red carpet from earlier in the evening show her underboob as well.

The actor told Page Six he believed what Plaza "was intimating is why would that be a problem if my nipple is showing" with her reaction.

"That's her humor — she has that dry, deadpan wit; that's her biting wit," he added.

Plaza also seemed to say "Jesus Christ" onstage, but that appeared to be a reaction to her fellow costars Meghann Fahy and Michael Imperioli nearly elbowing her when they hugged one another.

Gries went on to tell Page Six he texted Plaza the day after the show to confirm she was not angry with him, asking, "You weren't really upset?"

He said she replied, "No! Not at all!" and made a joke that Gries "saved" her from a potential nip slip, according to Page Six.

Gries also told Page Six that Plaza joined the rest of the "White Lotus" cast at an after-party until 1:30 a.m., indicating all was well with the group.

Plaza's SAGs dress was one of the most memorable looks of the awards show thanks to its sparkly fabric, bold cutout, and daring slit.