Although I don't have alot of experience with bottoms I feel for you. There are alot of pretty ones out there. The ones I would recommend are Kimberly Devine or Sapphire. Sapphire is cute as a button and strictly a bottom. Kimberly is versatile and also a great bottom. Then you also have India. She is also versatile and the only one of the three that will give you a bbbjtc and multiple pops. She is my all time favorite for service, attitude, and value. Kim and India can be found on the link and Sapphire is at http://www.bobstgirls.com/tour/sapphiretour.html
have fun