Hi... we were asked to take an opening sentence she supplied and write a story from it. The sentence was "Thunder storms frightened her, but tonight the blasting thunder added to her fury.".  Below is my offering, I hope you'll all participate:

Little Thunder

Thunderstorms frightened her, but tonight the blasting thunder added to her fury. The rock wall shielded her and offered only an obstructed view of the raging violence outside, shrouding her in her magic. As each lightning bolt illuminated the sky, she felt her distended belly throb as though trying to mimic the flashes. She wore her ritual singularity with the dignity expected of her, given her status within the tribe. Soon it would be complete and she’d either return to her clan or they’d find her and know she was a false shaman. As a white-hot flash engulfed her, she instinctively squatted with both hands pressed against the rock and in between her gasps for air, produced a male offspring. Quickly she wrapped the baby in the hides she’d chewed and child in hand, braved the rain and wind to rejoin her group. The prophecy now fulfilled, she could once again minister her flock.  Little Thunder would someday be their leader.