4. 50 Shapes of Grey
Looking to learn how to, um, work out the kinks like your favorite erotica heroine? New York fitness expert Kristen James has modeled a workout on the “moves” performed in the saucy romance novel, “Fifty Shades of Grey.” With a routine that incorporates specific movements that will "enhance your sexual life, stamina and health,” the 50 Shapes Workout includes exercises like the sexy scissor, the dirty diamond, and the bendover better. Group sessions are $25 per person, rope and blindfolds not included.