Giantess Exploration Story

Strapped in and ready to go, you stand on my butt. Luckily for you, my ass is already gaping wide, to give you a nice view. It's so deep you can't even see the bottom of the cave. Jus as you start wondering if this was a good idea, you feel a push from behind that sends you over the edge and into the hole.Your fall is stopped abruptly as the rope tightens, suspending you in the middle of a large room. Pink, pulsating walls surround you. As you take a look around, you notice that you can now see deeper inside. Slowly you descend into the depths. When you reach the bottom, your feet touch the soft ground. It's wet and mushy, exactly like you imagined.Just as you want to take a closer look at the gaping hole in the floor, a strange rumbling noise vibrates through the cave. Suddenly, the gap opens again, showering you with a spray of slime. You barely have time to orient yourself before you notice something poking out from the hole. It looks like a huge ball and seem