I have had DFK on several visits with Cassidy from Paradise (546-5649). 24, slender maybe 110-115 lbs, long blonde hair, face is a cross between Sheryl Crow and Tom Petty (but it works - she's good looking). Outstanding service provider. I think that her willingness to provide DFK, though, depends on her rapport with the customer.
Piper from Gems provides outstanding and energetic DFK, but she is a bit older (mid-30's) and a bit heavier, but still extremely pretty and also an outstanding SP. She retired a while ago but I have heard that she is now out of retirement. Gems is in the book. Cassidy certainly has the more "bikini-worthy" body, though.