Yoga

 After a two week yoga retreat, Nathan's eyes had feasted on bare bottoms, bouncing breasts, and hairy cunts. Pretty much a dream come true for the only male in the class. The instructor, a petite redhead, had repeatedly adjusted his gaze away from the fabulous beauty on display but didn't say anything.
On the final night after a few too many glasses of organic wine, she mischievously suggested the class
spank him for being the only male in the class. The ladies cheered. As suggested, he went from bare, well toned lap, to well-toned lap, his cock getting harder and harder. Two of the bolder women pulled him into the next room for a more private ass-whooping, with full on sex included.