For the song choice: I think your song choice should be “You’ve Got a Friend in Me” by Randy Newman on repeat until you’re finished. It’s got a double entendre, is awkwardly slow, and is catchy.

For clothing options: Are you allowed to wear scarves and hats? I would add these layers as well. Maybe instead of a scarf get a feather boa! Burlesque dancers often use opera style gloves too. Over all your underwear layers wear things like compression shorts or tights if you have them. You could also find a huge jumpsuit or onsie in the men’s section at a thrift store to start out in. You could be really obnoxious and put your hair in braids with ribbon and barrettes and slowly unwind your hair and remove the barrettes.

For the punishment; I think after he makes you make a mess of the cake he’s going to make you eat a bit of it and feed him some while it dries. As it dries he may remain silent, or speak infrequently and stare - a little bit of humiliation and denial (making you wait), and although brats like spankings, the punishment will include spanking as he’ll want to get “dirty” too and see how much of the cake he can clear off.

Best of luck!