It is difficult when you are used to a certain set of rules and then they change, as I am sure that there are a fair amount of guys who don’t want to be a cuck. Is there any chance that you could try just once and see what happens?
For me I would agree with Sopare. If my queen introduced this into our relationship, then I would agree to it, as ultimately it is her happiness which is the most important. I would want to please her no matter what the situation is.