Jack The Pony has him body resistence tested by Mirella and Rafaela. Compilation of these two clips previous released, click on the title if you just want one of them:

1) RIDING ON A SUNDAY AFTERNOON : Mirella (1,70m - 63kg // 5,57 ft - 138,89) riding Jack (1,70m - 60kg // 5,57 ft - 132,27 lbs). The Mistress Mirella is not sure that her slave Jack will have physichal resistence to suport a long ride, so she will test her first on the room with 10 minutes long that will be the lenght of... Show more