When I found out that I was infertile, at first I thought it was terrible. There was something wrong with me, an irreversible flaw... But over time, I’ve realized that it was the best thing that ever happened to me.

You see, when mares go into heat each season, they’re completely unable to control themselves. It doesn’t matter how uptight or reserved they normally are – when they’re in heat, they’ll jump on any stallion they can find, desperate for the filling that will quench it. To keep stallions from taking advantage of this, Equestria has strict laws about taking care of your offspring. You’d better not father a child if you’re not ready to support and raise one. Most stallions have to keep themselves under tight control during season.

But I’m not most stallions. I can mount as many mares as I want and never have to worry about siring any foals. Of course, it’s just my luck that I’d get selected for Wonderbolts Academy training during heat season...

Cover image adapted from Cuddly Hazing by goattrain.
Characters are aged-up.