I used to have a spanking partner who insisted that I wore plain white cotton panties everytime I visited. I would always glance at my other, much prettier panties somewhat sadly before picking out one of the white ones. LOL. All those laces, silks, nylons, pretty colors and sassy sayings... and he wants to see me in only the plain white ones. Tsk... what a waste.
But I do like to please my partner, and the request seemed reasonable enough, so I didn't really mind.
Not to say that I'm not grateful that my current partner appreciates various kinds of panties, white or colored, plain or otherwise!