Expert advice on sex and a how-to on popular positions PUBLISHED: , Wed, Oct 26, | UPDATED: , Wed, Oct 26, people realise and can help with muscle and joint relaxation as well as genital stimulation. Good for a woman with hip problems or multiple joints, but not to be used. 1 Missionary Sex Positions ; 2 Doggy-Style Sex Positions ; 3 Woman On Top The pressure you're putting on her muscles can also create a. Target key muscle groups (and spice it up in the sack) by trying out these new sex positions. You'll thank us later!.