Whenever I read about a non-CF guy use the words "legacy" or "bloodline" in front of a CF woman . . .

I sometimes imagine David Attenborough's voice narrating "Let us watch as this particular male Homo Sapiens Sapiens do the mating dance in front of a female Homo Sapiens Sapiens in an attempt to convince her to nest with him . . . However, she appears uninterested and flees the area . . ."

(I can't remember hearing about non-CF women using those particular words.)