Relieve the building need

Still brutally aroused, you can't help but lay on the floor for a while longer, curled around your swollen abdomen, steadily reaching another orgasm every time you reached down to press your sore clit. Unable to stop yourself, driven on by the increased arousal, one orgasm turns into two, into three, and then you lose count as it practically becomes continuous, the pleasure finally becoming too much, and you lose consciousness altogether.

When you come to, you're still laying in the dark cave, and the arousal has finally faded. Your pussy and the insides of your thighs are absolutely soaked, to the point where you can see the darker rock underneath your groin even in the darkness. The drider's eggs, slightly bigger, shift around uncomfortably in your stomach as you climb to your feet, looking around for the exit. One solace is the return of the long, dark dress, the material shielding your body in the blackness, though it presses painfully against your stomach, stretching almost to the point of breaking.

The passage winds back the way you came, leading in wide curves. In the near-darkness, you feel like you aren't making great progress due to the weight of the drider's eggs, but eventually you start to see light. Just as you do, your foot hits an object, and you glance down, rather surprised to see the ornate grimoire lying by your feet. You pick it up and head out into the long hallway, stomach jiggling uncomfortably with its unusual weight.