it sucks ass.
oh and by the way I LOVE THE WAY YOU DRAW!!!!!!!
Me: "Nononono, I don't meant about you. It's an expression of both shocked and surprised reeeaaaallllly big. I'm sorry."
Celestia: "It's okay~."
Me: "Hermrm... Where was I? Oh yes. OH DEAR CELESTIA!"
Me: Good afternoon your highness, it is a pleasure to meet you in person, at last.
Me: Time to see how this plays out...
Well, that's not the only factor...
You'd also have to look at the personality as well.
Take an anthro Fluttershy, for example...
She's extremely shy, and shy girls in Anime tend to have abnormally large busts.
Just setting a point...
Of course Celestia has the biggest Tits of them all