Get Your Dog Care Questions Answered by Experts
This more of a dominance issue than a sexual issue. Even a female will do it. She is trying to show others in the home who is the superior dog in the house.
There is nothing sexual about it and she is not trying to mate. The humping is saying - hey, take that! I'm the boss! - It's perfectly normal.
This will ease with time and as the hormones settle.
Rather than scold, I think that you should try to distract the humper. Use a favorite toy or special treat to distract her.
Let me know if you still have questions.