Thanks for all the replies. This is just a small thing, but it is getting right the small details that makes passing all that much easier.
Once, when I was about thirteen, my mom caught me in the middle of dressing in her clothes. Unlike my dad who usually yelled and intimidated, mom calmly told me to take it all off, put it back and "we'll talk later, when I have had time to think". Then, as I left the room, she added "And the panties go under the nylons, dear."
I never did figure that one out. I wonder if I had been confident enough, could I have won momma over to my side?