I was going to bring up this point exactly. The argument can be made that sexual satisfaction is just as visceral a need as hunger and thirst (although maybe not as often for most of us). Does this mean that at times a person can actually justify sexually immoral behaviors or even sexually violent behaviors to satisfy that need? I would be very interested in that paper as well. Hopefully you can find it and write a follow up post!
RE: Do Visceral States Like Hunger Affect Morality?