Rarity loathes the estrus season. For one month out of the year, any week can contain a pony's heat cycle.

It ruins her focus, positively murders her productivity. She decides a visit to the Ponyville Spa might alleviate her issues and help regain some of that creative drive.

That, as it turns out, will be a very bad idea. The Spa Sisters aren't all that they seem, and she's about to learn firsthand how they deal with mares in heat like her.

Contains: Futa/Female, Threesome, Non-Con, Domination & Degradation, Mindbreak, Double Penetration, Musk, Incest, & Impregnation.

This story was commissioned by Talesic. If you enjoy it and would like to receive a story of your own, see here for more details!