Monique gestured at the stairs "No, no, put eet een a garment bag and take the matching number, someone will fetch it down when you leave."
Several servants were standing on the stairs holding over-sized bags. As I watched a couple helped each-other undress and put their outer costumes into one of the bags.
Under them the boy was wearing a red speedo and the girl was wearing a tiny red silk bra and pantie set. Pinned to the back of her panties was a small devil's tail and she fished a set of plush horns out and put them on before putting some plastic cuffs and chains on her date and leading him away.
Monique turned to me and gripped my arm "Ah 'ad 'oped that she would be embarrassed, a woman her age competing with all these young ones." I looked at her in confusion as more guests, including scarf girl, wandered over and started getting undressed.
A few had body paint or henna "costumes", but most had at least a minimal amount of cloth over their privates. I realized that my wish hadn't just affected Mrs. Brockman, it had affected everyone at the party, including Monique! They all remembered being told about the inner and outer costume gimmick, and had come prepared. The servants and I were rapidly becoming the most dressed people in the room!
"Are you okay?" Monique asked "It was ver' funny, what you did to M'sieur Brad's wee-wee." She paused and looked at me thoughtfully "You could do much the same to 'er, could you not?" She nodded at Brad's mother, now examining the "elephant" costumes a couple of the basketball players were sporting. The elephants' trunks were raising up as Mrs. Brockman bent over to get a better look.
"What?" I sputtered. No one was at all upset or concerned by all the nudity, in one corner guys were competing to get the best erection, and their dates were dancing together and petting themselves to egg them on. Scarf girl, now wearing only a pair of the sheerest gauzy scarves I'd ever seen, was comparing her breasts with a girl whose costume appeared to be nothing but poka-dots.
There was a lot of casual feeling-up going on, but no out-and-out sex, yet.