The Challenge - kamasutra sex position For this challenging position, (aptly named the Challenge sex position) you’ll need a sturdy chair, a lot of flexibility and a great deal of strength. The woman leans forward in a sitting position, with her feet on the chair and her elbows on her knees. The man enters her from behind and keeps a firm hold of her waist to help her keep her balance.
A strong core is the foundation to a strong body. Think about it: A tree would fall if its trunk wasn't solid and stable. Doing core work isn't just about your middle, either. Having a strong core will make you a better runner, surfer, or yogi (or whatever activity you like to do) while improving