Try reading something in another car.
Main Entry: por·nog·ra·phy
Pronunciation: -fE
Function: noun
Etymology: Greek pornographos, adjective, writing about prostitutes, from pornE prostitute + graphein to write; akin to Greek pernanai to sell, poros journey -- more at FARE, CARVE
1 : the depiction of erotic behavior (as in pictures or writing) intended to cause sexual excitement
2 : material (as books or a photograph) that depicts erotic behavior and is intended to cause sexual excitement
3 : the depiction of acts in a sensational manner so as to arouse a quick intense emotional reaction
See definitions 1 and 2.
The people who manage video tape rental stores seem to have the ability to define porn that you lack. I suppose they should mix in their John Holmes tapes with Walt Disney because they are not being intellectually honest. Unless you pull out a jar of vaseline when you read the story of Lot (which would also make you a wierdo), you have no argument there using it as an example.
If you really can't even admit that watching porn movies in public is wrong, you shouldn't be on a conservative board. One of the trademarks of conservatism is responsibility. Watching porns in public where other people's children can see them is not responsible. I've noticed this disturbing habit of yours to disparage people who take stances - an example being your comments against people trying to protect their ranches against illegal aliens.