When you realize you're inside her ASS

You wake up. Everything around you is wet and pink. Where are you and how did you get here? You look around. The wet pink walls pulsate and contract when you touch them. This cave is so big and deep. Suddenly you realize: You're inside her ass! Just as you think this, the ground starts shaking! A gap in the floor opens and grows rapidly as something big is pushing inside. You can hear moans while the object seems to reach its maximum diameter. It's a huge egg! It slides deeper into the cave but the hole is still open. Another egg is pushing inside, followed by an even bigger wave of moans. This girl is pushing eggs into her ass while you are inside! A third and a fourth egg follow. They fill the whole cave and stretch out the walls. Looking up you can barely see the first one as it is pushed around a corner, even deeper into the ass. Below you, the anus opens once more and a shiny ball is pushed inside. Suddenly, a huge earthquake erupts! The eggs rumble as the walls rapidly contract