"Try on the panties," Hecate said, handing you a pair of plain looking panties, "they don't have any physical effect on your body, but they will cause the effects of any shirts you're wearing to be... normal. That is, if you wear the purple shirt and put on the panties, people will think you have always had a dick. However, it only normalizes shirts worn 'under' it. If you have those on and then put on another shirt, people will notice the top shirts effect."
You nod, jot down a note, and slip them on. You point at the other clothes she brought out. "What do those do?"
"Glad you asked! The tan shirt is the most important, it causes any other shirts you are wearing to disappear. I started developing it after reviews came in of costumers wanting to see themselves without the shirts on, so I worked on this. It effects any enchanted clothing, so if you put it on your magic glasses and panties would also disappear."
"The brown shirt... I want you to try that one on here, I will say it works like White and yellow. And I also have some more taur shirts and animal shirts if you like." Hecate looked at you with a smile before a loud clanging brought her attention to the kitchen. "Oh, come on! Stupid kitchen spell needs to be recast. Fine. Dinner in a few minutes, I want to see you in those shirts!" She called as she rushed into the kitchen.
You don't see any reason not to wear the shirts she brought you, so you take your pants and your own panties off and slip on the brown shirt.
The first thing you felt was the need to shit. You hear a fart and a splat on the ground. "Shit! I should've known," you then remember where you are and yell, "Hecate! You don't mind if there's a little... doo on your floor, do you?"
"Hah! Not at all, in fact." Hecate called back from the kitchen. "Oh, one other thing! If you focus on not letting the yellow, white, and brown shirts merge, they won't."
Good to know, you think. You dig in the purse you brought and pull out the white and yellow shirts. You pull them on while thinking about not merging them. You feel a pressure in your breasts and bladder and know it worked. You pull on the panties and quickly pull on the tan shirt so they don't get too dirty. You are now naked, as you hadn't had a bra on and you had taken off your pants. Stuffing your pants and panties in your purse, you go and sit down in the large dining room where there are some spots cleared off and set out for a meal. You wait for a few minutes, slightly uncomfortable because of the puddle of urine and shit that you are sitting in. Then Hecate walks in with some food and you notice...