To dream of doggy style sex represents a person or situation in waking life that feels good being easy to control. Enjoying noticing someone in your life letting you boss them around. Liking to feel yourself having to be in control unquestioned. Enjoying being given total control or power. Subordination that feels good being easy and automatic. Enjoying controlling someone because you are more attractive or interesting then they are.
Negatively, doggy style sex in a dream may reflect too much enjoyment of controlling someone else. Exploiting controlling someone's good nature for fun. Enjoying thinking you are too attractive or important to be questioned.
If you find yourself having sex with a girl who is bent over in the doggy style position this may symbolize something you wanted in life being handed to you. Something you wanted to think, feel, or experience easily happens. Easy power, control, or gains.
If you find yourself in the doggy style position, this may represent how you giving someone else easy power, control, or gains. Letting someone else enjoy themselves controlling you or getting something they wanted from you easy. It may also reflect your feelings that someone else is too attractive to ignore or reject. Enjoying being passive. Negatively, being bent over the doggy style position may reflect feelings that someone is too big or powerful to ignore. Humiliation that some else gets to control you without question.
Example: A man dreamed of having doggy style sex with a woman he knew. In waking life he was enjoying himself totally controlling this woman with his advice. The woman had a huge secret crush on him and was doing almost everything he asked her to do.