dog fight club

So my dog and my mom's dog are sisters. My mom got Macie's younger sister about 6 months after we got Macie. When we picked up Reese's (yes. After the chocolate peanut butter cup) she could fit in the palm of your hands. She's since grown up, and now whenever we bring Macie over to my mom's it becomes World War 3. 

The dogs fight each other for like 2 or 3 hours straight until they both fall down from exhaustion. It never stops. They run, jump and attack each other all the time. It gets pretty bad and we have to seperate them, though I don't think they mean any harm to each other. 

For kicks we give one dog a bone and then they both fight each other for it until they forget what they were fighting over in the first place. Right now they've finally settled down, wait no. Its started all over again. These dogs are crazy.