Gretchen stood at her dresser, staring at her underwear drawer. She couldn't believe that it had taken her this long to figure it out, but as she looked at her drawer she discovered she was very low on bras. For seven days in a row Petra had made her take off her underwear, and then kept it. While Gretchen still had underwear left, she was getting low on bras, at least on ones she liked to wear to work. She ended up selecting lacy demi-cup that was really only for hot dates, but it would be okay underneath the white blouse and grey skirt she planned on wearing. She picked out the panties that matched it and set them by her pile of clothes. She finished getting ready for work while still naked, getting dressed at the last minute.
The day seemed to drag on forever. Work, exercise, errands, it was all just killing time waiting for going to the movies with Petra, and see what she would make Gretchen do next. When she got home, she stripped naked, made herself some dinner and spent some time surfing. She was amazed by the comments guys had made about her postings. Most were extremely complementary, many asked for more, and more explicit poses. She laughed; it didn't seem to matter what you showed a guy, they would always come up with something more they want to see.
Finally, it was time to go meet Petra. She put back on the outfit she had worn to work and drove to the multiplex. Petra was already there, and had bought tickets to some period drama that had been out for a few weeks. It wouldn't have been Gretchen's first pick, but she hadn't seen it yet, so it was probably okay. They entered the theater, handed in their tickets and found their way to where the movie would be. They climbed the steps up to the very back row, where Petra picked out some seats. There were only about 5 other people in the theater.
"So, I have this little problem," Gretchen confided as they sat down, "I'm running out of underwear. You keep stealing it."
"Really? Out of underwear? Me, stealing?" Petra was grinning. "Well, maybe you should stop wearing it."
"Oh ha ha," Gretchen said sarcastically, "like I'm going to start going to work without underwear. Really, I need it back."
"Tell you what, you get to ten days, and we'll talk about how you get your underwear back." Petra didn't leave any room for arguing, so Gretchen let it slide. That was only two days, and she figured she could make it. They continued their girl talk until the movie started up. The previews had just finished and the opening credits were rolling when Petra leaned over to Gretchen.
"Unbutton your blouse," Petra whispered in her ear. Gretchen's heart started to race. She thought something like this might be coming. There were now a dozen other people in the theater. No one was near them and they were all facing away from her, but all they would have to do is turn around to see her. She found the idea frightening and fascinating at the same time. Slowly she reached up and undid the first couple buttons on her blouse, letting her lacy bra peek out.
"Unbutton it all the way," Petra urged. Slowly, because her hands weren't working so well, Gretchen undid all the buttons and untucked the blouse, fully exposing her lace covered breasts. Gretchen looked down and in the light from the screen her nipples were clearly visible as bumps in the flimsy fabric. "Nice bra," Petra whispered, "very sexy" They both giggled.
Gretchen sat like that for a while, until it started to feel normal, like she always opened her top at movie theaters. She knew that Petra would not let it stop there. "Give me you skirt," was the next command. Gretchen's mind raced at what she was going to do. The blouse was one thing. If she saw anyone turning she could just close it up. While no one would be able to see that she didn't have a skirt on, what if something happened, like a fire alarm? How would she explain only having panties from the waist down?
She laughed at herself, since she had never in her life been at a theater that had a fire. She knew she was just delaying the inevitable. She skootched forward, reached back, and undid the clasp and zipper of the skirt. Lifting her rear, she slid the skirt over her bare legs and off, before handing it to Petra. Petra set it on the seat on the other side of her.
"Hmmm, the panties are sexy too," Petra grinned as she whispered. Gretchen could feel herself getting flushed as she sat there with her underwear in plain view, lit by the silvery glow of the movie screen. After a short while Petra leaned over again. "You don't really need the blouse on do you, why don't you let me hold it." Gretchen was almost trembling as she slowly worked the white blouse down her tanned arms, and then handed it to Petra. She knew that this was beyond crazy. The stunts in the park and the photos at the museum had been crazy, but other than Petra and Tyler, no one had actually seen her. This was closer to her walk back from the beach with the transparent bikini, and she had almost fainted when she did that. She still had her underwear on, but she knew that Petra wouldn't let that last. She started clenching and releasing her thighs, trying to satisfy her arousal.
"I think you should give me the bra too," Petra whispered to her shortly. So this was it, she would be topless in a movie theater, with no way to hide if people turned around. Slowly she slid the straps down and off her arms, letting the cups fall away, almost exposing her nipples. She sat that way for over a minute trying to work up her courage. Finally, Petra leaned over and whispered again.
"Do it, remember I'm making you do this, you are not allowed to stop."