Did a woman orgasm during Tom Hiddleston’s Broadway show?

Tom Hiddleston got the big ovation.

An audience member at “Betrayal” on Broadway, which the “Night Manager” actor is starring in, was moved to tears, moans and spasms of ecstasy Wednesday at the Bernard B. Jacobs Theatre.

A commenter on the All That Chat message board revealed that a person in their row at the performance, a well-dressed “young woman in her thirties,” felt the Harold Pinter play deeply — and she wasn’t Loki about it.

“My companion could feel a rhythmic banging against his armrest, punctuated by occasional low moans and giggles,” the unwitting voyeur said. “[It] got faster and faster until there was one slightly louder ‘Ha’, and she resumed her normal seat position, put her head back and closed her eyes.”

Close to the sexy infidelity drama’s climax, when Hiddleston walked downstage and passionately kissed co-star Zawe Ashton, the panting woman kicked off Round 2, again adjusting in her seat, furiously pounding her armrest, letting out a “Ha” and dozing off.

“Betrayal” was good for her; she enthusiastically applauded at the end, and quickly exited, perhaps to light a cigarette.

Still catching his breath, show spokesman Rick Miramontez had no comment.

“The show was really wonderful and the cast first-rate,” added the poster, who said this is the strangest behavior they’ve seen in 55 years of theater-going. “But you might want to avoid seat B-3.”