Is there such thing as that? If so how much are they (on average) and is there a way to get them discretely?
Do you mean binders to hide breast development on estrogen when you're still not out yet? If that's the case you'll probably be best off just using something like sports bras because binders can cause breaking down of the breast tissue. Or baggy clothes, the usual binding advice. Or you can probably just google "MTF binding"
I'm pretty much out I just need to tell my dad and little sis, i was thinking something more along the lines of the opposite of what FTM does rather than hide, sort of make Brest look like their actually there. Or does something like that not exist?
I think that would be breast forms. I'm not super knowledgeable about them, but I know you can buy those (or probably make them yourself if you wanted) There's a thread about them here if that helps at all.
Ohh so that's what you mean, all I have to add is that Google is still a great resource, just google "mtf breast forms" and you'll get a lot of results. Just typing in "mtf" and the Google autofill thing will come up with commonly searched stuff