Mistress Eve - Dominant Diva is the web site of 3 ladies in Texas.  The area of interests on the web page for Eve was not working at the time of this comment, however; I did see some nice photos of her in pantyhose (bottom left) so that was enough to put her on my desired lists!

Being from Texas, one would assume she would enjoy riding horses so I hope she may also enjoy riding human horses.

She does have a  human horse willing to endure for her pleasures.

(see also Goddess Pyra and Domina Erika Grey listed in the desired rider's list)