z trade, it is controversial and mysterious, and there clearly is not one answer. Some Dommes insist on use of protection against fluid transfers in all instances. Others urge the bottom take his medicine. Mistress Catherine in L.A. once put out a call for stunts to assist Her in teaching Her long term fb sub how to swallow. Mistress Penelope, then in Las Vegas, may have done a similar thing when doing parties with Ms. Venus Divine. If I had to guess, and it would be a guess, of course, many/most Dommes will omit protection when only oral is involved, but not otherwise.