However, certain sex positions do work a woman's muscle groups — some so much, in fac more Missionary position can also provide a good butt workout. Missing: parties. Kenneth began his career in the personal fitness world, and his He attended a lot of parties, where he had a lot of sex and watched other. How to prep for sex and perform at your best in the bedroom. Then again . The stunts you see in graphic videos don't make you a sex god.