No true Dominant shares His submissive with another man for any reason. A Dominant is responsible for the safety and protection of His submissive and passing her around is the opposite of His duty. 

With the possible exception of a consensual threesome, no Real Dominant allows His submissive to be touched by other men and should react accordingly if they foolishly attempt it. 

The man who passes his girl around to other men is a pimp and a criminal. Dominant is the very last word which should be used to describe him as he in one move violates his girl and cucks himself. No Dom, no Man would consciously allow this.