Has been under the radar, but hard to find anyone better. Don't know if she requests an age minimum.

Sedona Weaver is quite attractive, and mature beyond her years.  A bit pricey in today's heat perhaps, but a stellar performer nonetheless.

I agree that Chrissy Stone and Ciara are spectacular.  If you prefer a marvelous lady a bit closer to your age but still within your requirements you will also delight in Roxanne.  All to die for.