how do u know it’s dash?

@Greenjack  
You sir. Have a good mindset. Though it could go either way considering RD’s loyalty. She might end up liking it. Or demanding twilight reverse it. Either way. That’d be IF or When she broke the trance. But it’d be great either way. Fanfic needs to be made here.

@Background Pony  
here’s the thing; I don’t know how much RD would mind having magic, dyed hair grows out, and alterations done with magic should be fairly easily undone as well. the brainwashing thing might be bad, but something like this borders on full on possession, which one can recover fairly easily from if tended to fairly quickly. the only negative, most likely permanent alteration would be whomever lost their horn so twilight could do this.
 
… also, hypnotism, transformation, and pet/slave play are fetishes of mine, so their negative impact on me is generally lessened.

I don’t get it…

@Greenjack  
That’s the only thing that worries you?

@Greenjack  
She found it in the gutter.

@gittonsxv  
… the only thing that really worries me is where she got the horn.

@Blissey1  
yep…dyed her fur and mane, changed the style and even stitched a horn on to her.

so she… turned dash into herself?

This is a very awkward way to reproduce…