Not ever going going to happen with her lovers, as she has never allowed me to actually meet them.  I personally knew 4 out of her 7 lovers, but only as friends.  There was never a chance she was ever going to give me the opportunity to watch her "in action".  Those were her conditions.
If I was given the opportunity to meet up with a guy for me to perform oral sex, it would someone new, not be one of her lovers, based upon her past history and her control over her relationships