ONE blink-and-you'll-miss-it moment from today's Emmy Awards had viewers losing their minds - and it involved Aussie star Nicole Kidman.

No, our Nic wasn't pulling focus with her unusual clapping technique - rather, it was a surprisingly intimate moment she shared with her Big Little Lies co-star Alexander Skarsgard.

As Skarsgard headed to the stage to accept his award for Best Supporting Actor in a Limited Series or a Television Movie, he stopped by Kidman, who played his wife in the series.

His arms around her waist, hers on his face, the two co-stars - whose racy sex scenes in the HBO series made headlines - kissed each other full on the lips, while Kidman's husband Keith Urban looked on, clapping.

Reaction from viewers was unanimous: Wait, did we just see what we thought was saw?

It was one of several eyebrow-raising moments in what's been a lively ceremony - the pair's Big Little Lies co-star Laura Dern almost had her Emmy win upstaged by a spectacular dummy spit, while a surprise cameo during host Stephen Colbert's opening monologue left the stars reeling.