The presenter had already admitted to having "a little nip action earlier" after show boss Simon Cowell made a quip that the "air conditioning is on high".
© Fox / Brian Dowling
Kardashian claimed that her clothes had been delayed due to superstorm Sandy and that she had not tried them on before the live taping, Entertainment Weekly reports.
"From my angle I thought maybe it was nipple-y, but from what I heard, it was entire areolas," Kardashian told reporters after the show.
"That was what the production told me in my ear. They were like, 'Your areolas are out'."
Of whether she discussed the situation with her husband Lamar Odom, she added: "We talked about the show, but I just forgot that part.
"Today he texts me, 'Um... make sure you're not showing your nipples tonight'."
Photo gallery - The X Factor USA's second live show:
LA Reid, Britney Spears, Demi Lovato and Simon Cowell walk out for the first results show of the season.
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Copyright: Fox Brian Dowling
