Surprised to see few mentions of feet in this pack of fetishists.
"Favourite" can be interpreted. The prettiest, most charming part, the first I look at: the eyes, which do most to define the beauty of a face. Asian, almond-shaped eyes are the best. Green is the best colour and works with all complexions; blue is too cold. But the sexiest part: the feet, indubitably, Perfectly finishing the sexy curves of a beautiful leg with the alluring shapes of the heel and the arch, and commanding desire with shiny, smooth crimson toenails... Wouf !