After coughing or sneezing. Girl vagina. wide open the weight is inserted, the vagina will naturally contract to hold it. Here are some preventative habits to incorporate into your routine: Some odor down there is perfectly normal. And discharge and discomfort can be caused by other types of vaginal infections, including bacterial vaginosis which typically comes with a foul-smelling discharge plus irritation and burning and sexually transmitted infections like trichomoniasis.