You wake up. Everything around you is wet and pink. Where are you and how did you get here? Slowly your memories return: You met this hot girl at a party last night and she took you home. Things got wild when she told you she was trans and into butt stuff! She asked if you wanted to try something. You said yes. The Lube she gave you made you feel strange and excited. But suddenly you started shrinking! Then you passed out... And now you're... 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. It's transparent and for a moment you can see her giant fingers on the other side, pushing the ball deep inside. Suddenly, a huge earthquake erupts! The eggs rumble as the walls rapidly contract in waves. A deep groan echoes through the cave. The girl came! And you were inside her ass while she did! A hot feeling rushes through your body. Did the space just become tighter? No, you're growing! More moans become louder as her ass starts pushing you out. Her anus opens for you, slowly expelling you onto her wet matress. You hear her heavy breath slowing down as you grow back to your normal size. "Well that was great, right? Wanna do it again?" Would you?