a day as someone else

"Alright then!" Jen says, and begins to dress in a skimpy dress. You feel nothing as she begins to strip, and you ask uninterested,
"What about the bra?" she pauses, before turning around to look through the closet once more. She turns back around with a wide smile, before throwing a thong and a lacey, black bra at you. You stare in horror at the underwear, before saying,
"Why the thong?!"
"For tonight, of course, silly,"