I rarely give acknowledgement of any kind to those who can't seem
to use a name on a board. But in this case, I must make an
exception. Petparrot has hit the nail on the head. You are not
yet researched nearly enough on what it's like to live with a
parrot and especially a Grey. This sounds less like sexual
behavior and more like downright boredom. Boredom from being
expected to constantly behave as you expect instead of being
allowed to be the basically still wild creature all parrots are.
Frustration from you trying to impose your will, 24/7 instead of
allowing the bird to make some of it's own decisions. It's you who
needs the instrucion and training, not the bird. Until you take
the time to really learn about them, I suggest you stop buying and
selling them like inanimate objects and stop screwing up the
parrots when it's your problem, not theirs. With your current
attitude and level of knowledge, you are not going to find one that
fits your expectations. "There ain't no such parrot".