I can't think of any busty babes that don't have pics, sorry.
Not hanging out at the houses all that much now, so don't know about any new/unlisted ladies.
Here's what came to my mind for big boobs:
Cherish at the Mustang is very short, but she's got large (for her frame) tatas and natural.
I haven't partied with her (yet), but have talked to her, she's nice for about 20 y.o or so.
There are two reviews at the house site:
http://www.worldfamousbrothel.com/forum/index.php?topic=2961.0http://www.worldfamousbrothel.com/forum/index.php?topic=2902.0Victoria at the Mustang also has the real deal - late 20s, maybe 30.
I partied with her a while back, just not my type, but she was nice. More than a handful for breasts.
AB liked her:
http://www.worldfamousbrothel.com/forum/index.php?topic=99.0If you can deal with faux (though they're non-obvious), there is Belle at the Mustang, many reviews, a very outgoing firecracker.
If you're checking out Selena at the Wild Horse, I'd say go there, talk with her, then walk across the parking lot and talk with Cherish/Victoria/Belle/?Destini, then decide.