Every year, the mares of Equestria go through one of the most irritating things they could possibly imagine, they all go into heat, a problem which is fixed thanks to the Estrus Alleviation Initiative.

This story takes a peek into the world of Equestria during the estrus season with the E.A.I in effect and shows two stories, one where Zephyr Breeze accidentally gets into a relationship with Pinkie Pie and another where Spike basically becomes a domineering dragon with the resident zebra in town, Zecora.

This story was written for: PuzzleMaster98

All characters in this story are aged 18 or above.

Warning, this story contains: Oral sex, vaginal sex, anal sex, bad puns, awkward family stuff, dom/sub vibes, a butt job, spanking and spanking references, one sentence not in english, one futa reference.