Do females mount each other when they are about to go in heat or is this just a dominance issue?

BOTH! JMO and from my own experiences.....

I have found this to be a sign of the pecking order being established. More often you will see the dominant females mounting the less sublissive girls to establish dominance.

it mostly happens around here when the pack of girls are coming in heat, a hump fest to say the least.

Same here when the girls come in season, it is a humpfest. They never do it any other time.

And they take turns. The humper becomes the humpee several minuts later!

And they take turns. The humper becomes the humpee several minutes later!

Gives conga line a whole new meaning sometimes!!!

I call it a choo-choo train. Thank goodness for property so the neighbors don't usually see it.

Many years ago I had a natural breeding happen near my fence. Two women neighbors were standing in the next driveway with their mouths dropped open. I said, sowwy, nature is taking it's course. Both came to visit the litter of 9 puppers at 7 weeks bragging they *saw it happen* hehe.

One time there was a "train" in a friend's front exercise yard and a comment was made by a visitor about an impending tie...................all 4 were GIRLS!