WARNING: This story contains F/F sex and incestuous situations. Read at your own risk!

Princess Celestia and Princess Luna share everything; a home, inside jokes about the nobles, and even a hatred for broccoli. It's no exaggeration to say that they are closer than any other two ponies could ever be.

And they're about to get a little bit closer.

For the first time since Luna has returned to Equestria, a solar eclipse is approaching. And for the two sisters, that comes with an unfortunate reality: until it passes, the two of them will be struck by nigh-uncontrollable lust for one another, an itch that can only be scratched by wild, uncontrollable sex.

Can they get through the eclipse without giving in to these urges? Or are things about to heat up between the two Princesses?

This story was written in between seasons Two and Three. Edited by NickNack, surprisingly enough (although I doubt he remembers).
Cover cropped from a picture by Allosaurus.