Mine tolerates it as long as there is a non-CD justification. I routinely wear women's pull-on pants, panties, pantyhose, and a chemise slip. I want to wear a bra too, but now that is limited to when she's away (like now). I have filled it (B cup) with flag-folded socks, wish I could fill it naturally. Perhaps I could wear a bra full-time if I could find a body slip with a bra...
p.s. I am slowly learning the acronyms. What's FFS?