In one of my fan fic stories, Angelique and Nicholas "knew" each other, in the biblical sense. There were many orgiastic ceremonies, and the two of them really enjoyed each other, both being quite piggish when it came to matters carnal.
Also, IIRC, when Angelique first came to Barnabas' room in 1795, she made reference to him being her master, she his servant. That made for a pretty steamy implication, too!
Whew, is it hot in here?
Love, Robin