Not sure how this will fly and I am ONLY speaking for myself, but, I am a very masculine man, who works a long hard physically demanding job. I'm orally bi and LOVE the taste of cum and sucking cock. Being with my wife/GF/SO and sucking a guy off in front of her is just HOT to me. Sure I like sucking his cock to make him feel good and admittedly because I just want to feel his cock in my mouth blowing a load down my " throat but also because being that "tough and rough big man" after a while runs its course and I found myself wanting something different. The "other end of the spectrum" if you will.
NO! I'm NOT a cuck in the sense I'll take humiliation, disrespect, or willing or able to take anything less than acceptance of what I like or crave. To me, as I have explained in greater detail than I can here, to many people in the past. For me sucking a guy off or eating his cum out of my woman is akin to a lion eating the cubs of the previous King of the Jungle.
I hope that translates well and everyone understands. Just my take on the deal.