thurinal..one is to swallow individual mouthfuls and the other is to take the cockhead into her mouth and drink piss directly into her belly .
Both methods require an experienced master/owner/trainer to control flow and give her just enough to handle and increase the flow each lesson until she can handle whatever she is given.
most start with individual mouthfuls and graduate in time to direct injection into the  mouth..however my latest trainee..a 27 yr old novice  black girl..during her very first lesson ..took the head in her mouth and swallowed a nice amount for me with no problem whatsoever..a very rare occurrence..I did not give her too much as to ruin her excellent effort..and congratulated her on doing so well..now she is primed to do more and more each time until there will be no holding back necessary. ere are many methods to train  a piss whore and techniques in being a