I think there's more going on than people think. Wives get uppity about pleasing their man and he in turn finds somebody that will. And after a while getting sucked off become routine and the curiosity about the taste of cock kicks in and once you taste it, forget it. You will always want it.
So true, married here, wife has no idea how often I have nasty gay sex behind her back. Love sucking cock and swallowing cum and fucking other men while I have their hard cocks in my hand. I cum so hard when I have gay sex.