The orcs didn't sit still.
They came back in full force and overran the Amazon settlement in a raid.
You were concerned with keeping your two girls safe and didn't have a chance at fighting back and we're captured.
The good news is that they took your girls with you and didn't hurt them. They even vowed in front of you that they would never touch them.
The bad news is that you were claimed by the cheiftess of the orc tribe.
She was the first non-female that you had seen in this apocalypse. She was a futanari.
She passionately claimed you that night.
During your mating throes, your recently acquired amazonian physique began to change. Your muscles began to grow denser and more defined, you grew in height to 7 ft tall, a large 1.5 ft penis grew between your legs, tusks grew from behind your lips, and your skin changed from tan to grey-black. You were now a grey-black futanari orc, one larger and more muscular than the cheiftess.
Your changes weren't finished though. Your stomach bulged as your lovemaking finished. Her seed filling you. It grew and grew as load after load of jism painted your insides white. When your session was complete you looked to be pregnant with quadruplets.