Pardon me, but that is just a bit over the zealot line...as probably on the order of 40 percent of the children born in the U.S. were technically conceived in "sin"...(and I really don't believe that a loving God cares how they got here). I don't believe her child will suffer, either, as she has one heck of a protective grandfather to shelter her. Mary Cheney did not "choose" to be what she is anymore than your or I could choose being left-handed or right-handed.
A)There is no scientific evidence that homosexuality is anything but a learned behavior.
B)Many lesbians claim their homosexuality as a choice.