Luna is restless.

Of all the strange stories Twilight Sparkle has brought back from the human world, there is one thing that will not leave her mind: their equine cousins in the human world. From Twilight's own words, and the photos she has brought back, the otherworldly "horses" are non-sapient animals, used as beast of labor and pets.

But Luna isn't convinced. She wants to make sure her equine brethren are not being abused by the wiggly creatures that rule the parallel world, and quite simply she's curious about them. Her curiosity is purely scientific, of course, it has nothing to do with the fact that she finds the creatures oddly... attractive. No, not at all.

On a full moon night, when her heat makes it impossible to concentrate on her duties, she sneaks through a breach between their worlds, keeping her pony form, and quickly finds a farm to investigate. A breeding farm. Full of pent up studs hankering for a mare to mount.

Oh my.

Fic proofread by Wolfgang Anonymous, my thanks to him!

This is a bestiality fic, please turn back if this isn't your cup of tea. The story contains: copious amounts of feral horse on Equestrian pony naughtiness, a horny Lunar Princess, gangbang, lots of cum, possible impregnation, horses doing horsey things, and a twist ending.

Bonus chapter contains the same, + futa on female.