Shekka comes to mind. Bess/Ben can be modified, Quinn's bust seems modest (relatively speaking) and I honestly don't consider Embry or any of the ant girls (that aren't Gold Myr) overendowed. And then there's Zhenya and Lerris, Brandy (who's small for a New Texan), regular Raskvel encounters, Sam, Beatrice Reasner, Paige, Aina feels proportionate, too. Penny, Jill, (the PC, if you want), Tuuva, Gwen and Eimear, Mica's sister, Sera, Saendra...there's a few that aren't overly ginormous in the chest department. Still big for the most part, but...
Well shit, I forgot all about the little Kolbold firecracker Shekka. Thanks for reminding me, guess I should hang out with them all more often than those gold whores. You know it was because of their boobs they lost the war. Jk.
Guess I'll have to say I'd like to see a more alien, alien. Wait let me make it sound more clear, an alien that doesn't look like a furry with a humanoid body and fucks differently, I mean like an alien that's completely alien like and looks alien and doesn't fuck the same way everyone else does. I think I said this already elsewhere? Maybe I should just get with a commissioner that's willing to do the dirt and set aside money to pay them for it.