There are a lot of back tattoo variants out there however there could be no sexier designs for women than tattoos that run along their spine. Spine tattoo is famous nowadays for its placement and design patterns. This is more prominent in women than in men because women most of time exposes their backs whenever they wear bikinis or backless gowns. Also, women knows how to curve their backs the sexiest angles men can never do and a tattoo that accentuates the curving adds more “wow! factor” to it.