Dragon Booty 2

Celestia blushed and said "A-are you sure?"

Luna rolled her eyes and said "My dear sister, I've said it once before and I'll say it again, you have a tremendously large behind, bigger than my own. If Spike enjoyed my bottom as much as I think he did then he will most certainly enjoy yours. I check his dreams rather frequently and his penchant for rotund rumps is still very much the theme of all of his fantasies, you have nothing to worry about".

Celestia sighed before saying "I know it's just... well it's not very... proper, is it?"

Luna chuckled "Sister dear, if the desire to have a man worship my ass isn't proper, then I don't want to be proper. Now do away with this nonsense, forgive my language but you need to fucking grow a pair and just send him a letter, literally get your ass in gear! Or rather, get Spike's gear in your ass".

"Don't be so crude!" Celestia detested such direct sexual language, mostly because she was a repressed bitch.

"Well don't be such a prude!" Luna was always good with words, but the important thing was achieved, Celestia swallowed her pride and prepared to send a letter.