Vaginal smells and tastes aren’t related to pheromones
, etc. And
your breasts and
vagina don’t have the same glands. In fact, why your breast would smell and taste like an onion is a mystery to me.
However, various factors CAN affect the smell and taste of your vaginal lubrication. One obvious factor is the form of contraception you use, since some forms can affect your bodily chemistry. Therefore, you might experiment with various contraceptives to see if your smell changes.