No doubt that they're forcing his butt plug in too deep.
Think of it, though; Bill's got no strong male figures in his life to emulate, and so he ends up being a submissive girly-man. Subconsciously, he feels guilty about being male.
There's his mother, his wife, and his daughter, the cynosures of his life.
One of course can't blame the infant daughter for Bill being the way he is, but remember that his mother expelled his father from his life, and his wife won't give him any unless he admits to the superiority of the female race.