As a cross dresser, I have a really hard time finding lingerie that fits. They don’t make lingerie for men, at least not that I know of, so I have to buy women’s lingerie. Do other cross dressers have a hard time finding clothing that fits?
I don’t really know anything about this personally, but I can see where you might have issues. Since that clothing is actually cut for a woman, it’s not hard to imagine that a man would have trouble finding the right size. Have you tried looking online for size guides? Maybe if you Google’d for crossdresser-related websites, you’ll be able to find something. Good luck!
I imagine that it can be very difficult to find lingerie that fits. I would take Kamelia’s advice and try something that was designed for a larger woman. If that doesn’t work perhaps you find someone to make custom made outfits for you.