Gracie Ruth and Yogi do this to each other all the time when one has a toy the other wants. It all started when Yogi first joined our family, G quickly learned she could wrap her front legs around his middle and then by humping and pulling him backwards could hold him tight and pull his head close to hers and still holding him tight could snatch the toy from him. I'm not explaining it too well, but it sure was funny to watch her after she figured this out. Yogi is too much bigger now and this doesn't work any more. But they both will still hump each other when one has something the other wants. Silly kids.