Now, speaking exclusively to RadarOnline.com, the rapper revealed they're having a baby girl.
"That's my baby," Mr. Papers told Radar.
This will be Kim's first child and the second for Papers, who already has a 4-year-old old son.
Mr. Papers isn't married to the "If You Love Me" rapper, but said he and Kim are an item.
"We together," Papers said.
"Kim is doing great," he said, adding that she'll be a wonderful mother.
"That baby is going to be well taken care of… rocking Tom Ford, Versace — even the stroller will be designer," Papers said.