It's Halloween and your parents adopted a new step sister for you earlier in the year. She's not had the best life growing up and in order to welcome her to your family your parents wanted to dress up with her for Halloween.

You're both into ponies and as such she's chosen to go as Flurry Heart. The problem is your parents had to bail at the last second due to responsibilities that they couldn't avoid. So now you're rushing to find a pony costume, ANY pony costume so you can match her and take her Trick or Treating.

A strange girl in a strange store sells you a costume for cheap. A costume of a changeling queen that works far better than advertised.

Now... what troubles will this get you into tonight? You vote and decide!

WARNING: I like genderbending, so expect genderbending shenanigans. Each possible path can lead to sexual themes. HOWEVER I want to stress that being you're all humans in this story. The young step-sister will NOT be present for any of the adult content. There is NO underage activity of that sort allowed here. All sexual conduct will be between individuals of at least 18 years of age or up.