I cannot imagine Vlad feeling he has any need to describe rape. Considering the world in which Vlad has lived, it was pretty much par for the course. Vlad describing rape would be like a mercenary describing the effects of a grenade on the human body. Why bother? Everyone has already seen it. Vlad describes lots of things everyone has already seen (lunch, for instance). Including life as a soldier in war. His description did not lead me to believe Paarfi's statement that rape is inevitable where Dragaeran soldiers go.