The whole "Mary Cheney's baby" thing has been fascinating, hasn't it? It's just another layer of frosting on the cake that is Mary Cheney's lesbianism in the first place. How galling it must be for those right-wing crapweasels to have a perverted selfish hedonist smack dab in the middle of that nest of vipers called the Cheney family.
Of course, Lynne and Dick haven't exactly charged to their daughter's defense, and Mary herself has been even worse - taking the right-wing's money, both at Coors and from her own father's campaign, and staying silent when it came to standing up to the elements in her father's party that abhor her very existence.
As usual, other people say it more eloquently than I can - in this case, it's Dan Savage. Preach it, brother!