Maybe you should focus more on making Twilight moan?
Same. I don't moan. I'm dead silent at all levels of arousal.
Embarrassment is just your subconscious mind protecting you from social stigma.
Even though I used to be quite public about most aspects of my love for ponies, I tend to keep it quiet now. I am embarrassed, but not by pony specifically. I am embarrassed by things associated with it, like shitty spinoffs and furfaggotry in the fandom. And I certainly don't want to have to expend great energy to explain to people the difference between all that and the pony that I love. Especially with the show itself no longer being something I can point to as a whole and just say "this is good". The explanations would have to be very long, and not a single person on Earth is worth that much effort.
Also, count me as firmly on the pony pussy side.