Velvet: LITTLEPIP!!!
Littlepip get's scared.
Littlepip: Ve-ve-velvet?!?
V: I know your use of profanity can be justified most of the times, but I won't let you use…. That!… About the princess's.
LP:What???
V: Don't give me what littlepip. I can't believe you would use.. Hmm… That!
LP: Wait! I'm sorry Velvet… I didn't know it was that bad of a word!
V: Littlepip… Calamity told me that not even raiders dare to use that profanity.
LP: Wait? Raiders have some stander's? But this is the wasteland!
V: That's no excuse's for bad language. She pick's Littlepip up with her magic.
LP: Hey!? Velvet? What are you doing??
V: I'm taking you to clean your mouth out with 10 bars of soap. Maybe that will help you remember never to say that again.
But before littlepip could respond Velvet magic'ed her mouth shut.

So Velvet being the more or mother of the group, decides she has to teach littlepip about how to use her profanity's.

Fallout Equestria by kkat