Dom/sub verse

Dom) sub in prison.

Boy, sub is working as nanny. One day man - dom need help with his child. There is first meeting of pair of this story. Dom is writer of erotic novels, which is sub fan. They fell in love a sub chose him, not his actual partner, which was bad for him. This partner don't stick to vinegar. Friend of dom writer will take care of him. (And his switch nature)