What is power? Where does it come from? I certainly know. The Estrus cycle hits ponies hard. And I'll let you in on a secret. The Estrus Cycle synchronizes with mares who share a deep bond with each other. This is the story of how I learned about that...the hard way. And how I learned about their power, and what it means compared to mine.

WARNING: Contains the concept of "rape."

Spoilers in the comments below. Read at your own risk.

I have a few more chapters planned. If this is popular enough after those chapters are published, I'll continue it.