Mix 'n' Match

In which we mix colours and match them to a new version of ourselves.
Roxy and Glamrock Chica are bored, what could quell their boredom?

Why, dressing up Gregory of course!

Contains:
Found family, self discovery, trans (female) character/s, non-canon compliant storyline, implied trans Gregory

Note: this fic features an exploration of gender identity without an explicit shift in character perception, do not like = do not read.