She wasn't quite sure why she'd agreed to do this.
That wasn't completely truthful. All she had to do was feel the wetness at her crotch to realize why she agreed. Because it's exciting. And the guy, Stefan, was very persuasive. After they'd gotten to know each other, and he'd zeroed in on her desires and fantasies, he proposed, "How would you like for me to suggest some 'erotic missions' for you to fulfill? They'd always be on a 'if-you-choose-to-accept' basis, of course."
She'd been intrigued. She wouldn't have to do anything illegal or dangerous, because she was free to refuse. But she let the question hang in the air for a while, before saying, "OK. I'm interested. What do you propose for my first mission?"
He'd rubbed his chin, thinking, scanning her up and down.
As she waited to hear the mission, her breathing accelerated, matching her rising heart rate, as a frisson of excitement mixed with fear ran through her. Her hands went through her honey blonde hair, which had come forward over her shoulders, covering the top of her chest down to the rise of her breasts. She flicked that errant hair back behind her neck. Her gorgeous pouty lips, which held so many men spellbound as they gazed at them, felt suddenly dry, so her tongue darted out, wetting them.
"OK," he began. "Here's the mission. The next time you go out with your friends, and I don't care what group, wear a G-string as your panties. You have one, don't you?"
"Yes, I do. But I wear such things often. What's the catch?" she asked, grinning.
"The catch is that you have to wear it backwards, and pull it up tight," he explained. He watched her pupils get big as she considered the implications. "That skinny string will press deep into your cunt slit, and will probably rub a bit painfully on your clit, stimulating you. Also, you need to be wearing a low cut skirt or jeans, so the top of the G-string is visible, a clear sign that you're wearing it. On top, wear a bra and a short shirt or blouse that exposes your belly button. This'll draw people's eyes to that area, and some may even notice you have the G-string on backwards. If they do, tell them that you have it on backwards deliberately, because it feels so good that way."
Laughing, she'd replied, "So far, this is fine with me. I've a good idea what I can wear. Anything else?" She was happy, thinking about how great she'd look, because she had voluptuous tits, a narrow waist, and generous hips – this would leave her midriff bare for the men to ogle at, lustfully.
With a naughty glint in his eye, he replied, "Oh yes. During the evening, you'll need to visit the toilet at that bar or restaurant – but slip into the men's toilet. Get into one of the stalls, and close and lock its door. Then undress completely, and start fingering yourself. Just get yourself aroused, waiting for one or more men to also enter the toilet. When someone else is there, then make yourself cum."
She'd thought about that, whispering, "Oh my god." But the thought was very exciting by its very boldness.
He went on, "After that, you can either dress fully again, with your G-string still backwards, or you can leave it and your bra off. Since the top of the G-string was so visible, people may notice its absence. If anyone asks, you can confirm that you decided to remove your underwear to feel more free and sexy for the evening."
That was his proposal, and she'd accepted. Tonight, she was going out with her friends to a club. She put on her iridescent pink G-string, a black bra for contrast, a short, plain deep blue skirt, and a long sleeved matching top whose lower edge tied just above her belly button. The resulting deep plunge of her cleavage left the center of her bra and the inner curves of her breasts exposed. She checked herself out in the mirror. She looked hot. When she shifted her weight from one leg to the other, the string snugged between her pussy lips, sawing gently alongside her clit, making it tingle. She wondered if she'd be able to dance in this outfit without having an orgasm right there on the dance floor.
Gathering up her courage, she and her friends went to the club.
The next day, she met Stefan, as agreed, to give her report of the mission. First she described in great detail how she'd been dressed. She watched his face flush gently, and his eyes glaze over slightly as he visualized her in that sexy outfit. She knew he wished he'd been at the club with them.
Her recounting of the evening continued. "If any of my friends noticed I arrived with my panties on backwards, no one said a word about it. And wearing them like that wasn't too bad – a little painful, but also stimulating at times, depending on how I moved. I didn't want to try any wild dancing at first, so we just had a few drinks."
She smiled. "I didn't have to pretend I needed to pee – the drinks saw to that. But I didn't announce it, or my girlfriends would have wanted to go with me. I just mentioned there was someone I saw across the room that I needed to talk with. But I really was sneaking to the area of the men's toilet. I had to put the door under surveillance, trying to figure out if anyone was inside."
She blushed a deep pink, recalling. "It was embarrassing to stand around near that door, but I admit I got a little excited each time a passing man gave me a strange look. Finally, I saw my chance. As far as I could tell, the room would be empty, but I planned to explain that the ladies' room was jammed, and I need to go urgently, if anyone confronted me. Luckily the place was empty."
Her blush deepened a notch as she reported, "I found an empty stall, and closed and locked its door." As a side note, she said, "It never occurred to me until I entered that the men's room stalls might not have any doors! I would've been in big trouble then!" She giggled, but then continued, "But there were doors, and I had my door locked as I undressed. Naked now, I started masturbating. I was soaking wet at that moment. You know why. I was in a 'forbidden place' and naked – and not only might some man come in to use the toilet, I was actually waiting for one to come in!"
She noticed Stefan squirming slightly, and trying to subtly adjust his pants. "Is this story turning you on? If you need to fix your underwear, go ahead. In fact, if you want to play with yourself, I won't mind." Gratefully, Stefan plucked at his pants, getting his erection into a more comfortable position.
She continued, "I was so horny by that point that it didn't take much for me to get close to cumming. I sat on the toilet seat, and braced my feet up on either side of the door – thighs wide open. If anyone had opened the door, the first thing they would have seen would've been my wet cunt, and my hands playing with it. Thinking of someone seeing me like that was driving me crazy with lust."
Pausing, she swallowed hard. "You'd told me to wait until someone came in. It didn't take very long. I had no way to tell the time, but it felt like only a couple of minutes. I heard people coming in, all at the same time. As best I could tell from their voices, it was three guys. The knowledge that they were there was like a switch flipped inside me – I started making myself cum. I was fingering my pussy fast, and pinching and tugging at my nipples. And I came. In fact, I came so hard, that I forgot to hold my moan!"
Stefan's face registered shock.
She nodded. "Yep. They heard me all right. But that wasn't the worst thing."
Stefan gulped and asked, "What was the worst thing?"
