Strange beings from another world found their way into orbit above Equestria. They abduct hapless ponies only to perform strange experiments on them.

The aliens won't show themselves though. They have built sophisticated machines to fulfill this deed.

There will be quite a lot of triggers in this story, so please check the list before you start reading.
These are found in nearly every chapter:
abduction, dubious consent, sex machines, mind control, aphrodisiac, M/F, F/F
Released chapters:
First Chapter: brain implant
Second Chapter: needles, electro stimulation
Third Chapter: anal, belly bulge
Fourth Chapter: gaping, forced exhibitionism
Fifth Chapter: suction (genital inflation)
Sixth Chapter: milking/lactation, injections (syringe), anal
Seventh Chapter: forced piercings
Eighth Chapter: implants, impregnation, injections (syringe), belly bulging
Ninth Chapter: foalcon, incest, anal, amputation and robotic prostheses
Tenth Chapter: vaginal stretching, injections (syringe)
Eleventh Chapter: implants, brain transplantation, not much clop
Bonus Chapter 11.5: foalcon, literally brainless sex, belly bulging, impregnation

Character tags will follow as chapters are added.

If you have any ideas or wishes what to include in future chapters, please let me know. I can't guarantee I'll include it though.
Every chapter mentioned in the list above is already written or outlined.

Editors and pre-readers (in no particular order):
Canary In The Coal Mine (Chapter 1-3)
Daxn (Chapter 1-3)
Malletmann (Chapter 1)
Dashiekawaii (Chapter 1)
refferee (Chapter 1-9)

Image used with Permission
(no link other than derpibooru source because of NSFW, sorry)