Usually humping is associated with male dogs, but humping is also very common amongst female dogs. Some girls will hump toys or other objects, some hump air, others hump other dogs or even people. To learn more about humping, why girls do it, and how to keep your female dog from humping, we talk with Certified Professional Dog Trainer and Chair of The Association of Professional Dog Trainers Nick Hof, CPDT-KA, CBCC-KA, KPA-CTP, CSAT, to answer some of your most commonly asked questions about female dogs and humping.