Smelly vagina

So idk if my brother is being mean but every day he sees me he always tells me my vagina smells. I take two showers a day and put perfume on, I am also a bigger girl so I do tend to sweat more down there. But I want to know if there’s anything I can do that can make the smell go away. My boyfriend says I don’t smell or taste like fish so I don’t know if my brother is being jackass, but if u ladies know anything g that works to help with smell that will be great.