…she bucked up

nice teeth, Dash!

Rarity: Her pits needs some deodorant.
 
Fluttershy: I know, somepony should tell her?
 
Rainbow Dash: Hey, I can hear you and no I do not need deodorant right now.
 
Fluttershy: Not you.
 
Rainbow Dash: Wait you mean Spike. I know he is a dragon but really–
 
Rarity: Heavens no. Spikey Wikey doesn’t stink.
 
Rainbow Dash: Then who are you talking about? It certainly can’t be Applejack, she always smells like apples. And Pinkie Pie won’t stop with that smell of gunpowder and candy.
 
Fluttershy: No, it’s Twilight?
 
Rainbow Dash: Twilight, that impossible–
 
The scene above plays out.
 
Rainbow Dash: Holy horse you’re right, she does stink.
 
Rarity: Well,
 
Rainbow Dash: Well, What?
 
Fluttershy: Please…
 
Rainbow Dash:… O_O… Oh no, I’m going to tell her that to her face. You two are on your own.
 
Rarity: Deary, I promise she won’t dump you if tell her. It’s okay to say something, my stallions… say it… all the time. Even Spike… does occasionally.
 
Spike: I do? I always thought you like to be compared to the smell of lavender and lilies–
 
Rarity: Not helping Spikey.
 
Rainbow Dash: Nice try, but I’m not tell her at all… no matter how bad she stinks.

“That’s not my fetish.”