Cup Cake missed out on the Nightmare Night Couple's Party last year.

She'd had an amazing costume ready to go, tailor-made to fit her advanced pregnancy with the twins. She was going to wear it and be the talk of everypony at the party... but then she'd gone into labor two weeks early.

But Cup was determined to wear the costume she'd worked so hard on. Her costume may be a maternity dress, but she didn't necessarily NEED to be pregnant for it to fit, did she? There were plenty of workarounds for that.

Now, Cup is set and ready to go. Nightmare Night is here, the moon is high in the sky, and everything is ready for tonight's party. She and Carrot will be the stars of their delightfully spooky evening.

What could possibly go wrong?

Contains: Impregnation, Magical Superfetation, Rapid Gestation, Mild Mind Control, and a Bunch of Unnecessary Worldbuilding.

Picture by 09hankris.