Also, what was the historical Japanese word for sex that "pillowing" is translated from? (Written in rÅmaji, please.) Thanks!
I'm guessing one of the works you're referring to is James Clavell's Shogun? According to this text that someone linked me to when I asked a question about the book 'pillowing' doesn't really have a Japanese equivalent. Clavell chose it because it properly conveyed what he was trying to get across.