OMG: John Legend And Wife Chrissy Teigen Had Sex at an Obama Event...

Chrissy Teigen and John Legend are very open about their relationship, smooching up and down most red carpets they're on and then sharing nude photos-- but Teigen may have shared a little too much at the Grammys on Sunday night.

In an interview on the 2015 Grammys red carpet, when asked by Extra to share a "public place you did it," the Sports Illustrated model asked, "Is this the best or worst?" She quickly followed,

"Probably the Obama thing?"

Legend looked shocked that his wife would reveal the intimate moment with the cameras and went silent.

"We're not gonna discuss that," the tight-lipped singer responded after his wife walked out of the frame.

Watch the clip below: