Jane didn't remember how long it lasted, only when it ended.
Day after day, she'd wake up to find more orcs crowding around her. Usually, they made her lie flat while they stroked her cock before slamming it in one of their big meaty pussies. A few minutes, and she'd cum. Then another orc would shove the first one aside, yelling "My turn!", and she'd cum again. And again until all of them were satisfied. Sometimes, the orcs would just give her a hand job and collect her semen in a bowl. For what purpose, she never figured out.
In between, the orc princess kept her word. Jane got dragged under a burning sun, tired and exhausted from sex, and was then forced to do some sort of conditioning exercise. Being hit over and over with hard objects to get her used to pain. Lifting weights and heavy loads until she was strong enough to do the whole thing with one hand. Learning how to hold a spear, then sharpen it, then fight with it. The same with a sword. How to use her tusks to rip the meat clean from animal bones. Sparring and grappling with orcs twice as big and experienced as she was, which usually ended with her getting her ass kicked or having one of her teeth (or several) knocked out and then having to spend hours getting them fitted back in their sockets.
But eventually, these things made Jane stronger. She could run faster and bench hundreds of pounds at a time. Her stamina improved to the point where she could bang ten orcs and then wrestle them all into submission. She took down the strongest orc warriors in single combat. When the princess challenged her for the right to the throne, she not only won, she fucked her in front of the whole tribe to show her dominance.
Jane was crowned as the new princess of the orcs, and she quickly focused her energies into expanding the tribe. Nearly all the orcs were pregnant by her cock, and before long, the orcs tripled in number, meaning there were now many new warriors and hunters to train. Jane led her people to build a great new war camp, and oversaw as the younger orcs were prepared to mate with her as their mothers had before them.
The quest to slay the Demon Queen was long forgotten as Jane, wearing the new armor she had ordered fashioned for herself, rubbed her mighty cock as the first orc maiden, wide-eyed and innocent, approached her.
"Do not worry, sweet child. It is an honor to have sex with me."
The girl nodded. Her hair was short, her face fair. "What is your name?"
"Antonia."
Jane had fucked many orcs, but none were as good as Antonia. She was so tight, Jane came in her with the force of a great flood. Before she could pull out, she summoned her red-haired captain of the guard.
"I like this one. She will stay here as my daughter. Raise her as you raised me."
Antonia was led away as the other orcs continued to mate with their princess.