"It was around the third week that Celestia began suspecting that the recent change to her dreams may have been the work of her sister. The shift had been gradual, which is why she had not noticed it earlier, but finding herself staring at the sweat running down her sister's alluring flank inside her own dream finally made her wonder how she'd got here."

Celestia only has sisterly feelings for Luna - at least, that's what she thought. But recently her dreams have been less... innocent, when it came to her. When she figures out that the real Luna is the one responsible for her new experiences, Celestia's objections cause things to get a lot more heated between the two siblings - and not in the way Celestia had intended.

Written for the April 2019 Incest is Wincest contest. Contains princest, forceful advances and dubious consent.