I'm fairly new to these forums, but I must admit that I, too, have often lost interest in stories where the raped/tortured female suddenly began having multiple orgasms right in the midst of a marathon gangrape by horses and escaped convicts who haven't bathed in over a month!

I agree that sticking to some small thread of realism is essential in a story's construction.

I also agree wholeheartedly on the idea of ring gags. Being able to insert whatever you desire into a slave/captives mouth is definitely a plus in my book.