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. 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.