If you think your girlfriend looks great naked, bare your feelings and tell her. Her satisfaction strongly depends on your perception of her body, a new University of Missouri study reveals. When a woman thought her partner was dissatisfied with her body – but confident about his own – she reported strong negative feelings during sex.

“In Western culture, women’s sexual appeal is heavily dependent on their role as a visual stimulus,” says study author Dr Ruixue Zhaoyang. “Men’s appeal may be more about their sexual skills.”

The fix: “Give sincere praise emphasising your satisfaction with her body,” she says.