Pony aliens have come to Earth, and a particularly friendly one has moved in next to George. But why does she keep calling him Anon and want to have sex with him so badly? Human on pony action, public sex, and a threesome with the coltfriend ensue.
The more George saw, the more he was convinced that this was something intentionally engineered into this species, like they originated as some perverted mage’s living sex toys in the distant past. When the shafts slipped inside her, George didn’t only see the shaft, but her vaginal cavity and throat were both visible as well now, their muscle contractions fully on display.
I would not be surprised.
Cadance, you naughty little horse...
Yeah, more crystal pony "experiments" will be needed... for science.
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That should be fine. Everything is okay if it's for science.
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My headcanon is that they were either that or someone's science fair project gone awry.