It all depends on his knowledge of the situation...if the cuckold already knows that his queen is fucking another guy or guys, then there is absolutely no problem in introducing him to her lovers...in fact he will welcome it.
If on the other hand, she is cuckolding him behind his back and he is not aware of her infidelity, then it's going to take a lot more tact and patience, as she must seduce her cuckold husband into accepting his role...by the time he realizes it, it will be too late and he will welcome the lifestyle his queen has chosen for him.
I believe that women are clever enough to get around any obstacle, and that they can effectively manipulate any man into becoming her sumissive cuckold. In just a couple of years, my queen turned me completely around a full 360 degrees from being a jealous, possesive husband to one who now actually looks for and finds partners for her to fuck....and all the while she made me think that it was my idea!! Go figure!! She's a total bitch, she knows it, and she's proud of it! Got to hand it to her! Gotta love her!! She is absolute total PUSSY-POWER in action!! And me, I am powerless and totally sumissive to her wishes, no matter what they may be! A total slave to that wonderful pussy! All I can do is beg for her mercy and hope my queen continues to grace me with being her cuckold.