The panties fit you perfectly

You and the girl sneak out of the hall to the bathroom. Quickly, the girl pulls down her pants, showing her cream colored underwear. Indeed, it is wet in the crotch part. Then she pulls that down too, revealing her pussy which is also still wet. Judging by how it still looks slimy, she lost her control not too long ago, it seems.

"Here you go." She hands the panties to you.

You quickly put them on. At first, they feel loose, thanks to the fact that her butt is quite bigger than yours. However, the panties suddenly shrink, turning into a tight pair that really pushes into your sex.

And a wave of arousal instantly enters your mind.

You involuntarily release an embarrassing moan, clutching your privates with your two hands.

"Oh dear, so the pearl has melted. I'm sorry, darling, but you just have to bear with the arousal. Part of the pearl is now stuck to the panties. And no dear, you cannot wash it off. And the panties too are designed to give a certain level of arousal, tightening to achieve said effect. It's the strongest level that I can handle without creaming myself in public... well, until my shorts add more to that, at the very least."

Oh, you can't believe this. Just as you've dealt with your commando problem, now you have to deal with this--this perverted feeling.

And you just have to have a sensitive pussy.

Once, you mistakenly bought one of those panties similar to the one you're wearing right now. It was quite popular with the masses, so it wasn't exactly some hidden sex toy. It was sold right alongside the other normal panties. And it just had to look so cute too, making you bought it right away. Of course, the shopkeeper didn't know that you was looking for a normal panties.

You wore it with your best dress, as you were going to a ball celebrating the birth of the local nobles' son. At first, it felt normal, but in the middle on the carriage ride, it started to tighten. You began to feel aroused but you got **** but to press on. With this level of arousal, you thought you could handle it. You were not going to miss on out the ball just because of this little thing.

And oh boy, you thought wrong. The panties were the type that slowly increased its arousal until you cum in public. It was absolutely designed for people who enjoyed that sort of thing.

When the party started, you began to feel that the arousal was taking over you. You could feel the growing wetness between your legs as the panties teased you further and further. Sure, you could just relieve yourself in the restroom but a (future) knight is not supposed to masturbate. It would be a disgrace to their honor after all.

So you held it in. And you really, really held it in.

No matter how much you tried, at the time when the third dance was over, your panties were already damp with the slow dribble of your juice. And no, that didn't count as cumming. The panties would only relax until you cum with a powerful orgasm.

And then, the local nobleman just had to ask you for a dance.

You didn't know if it was the effect of your arousal, but you felt as if he was the most handsome man you ever saw in your life. Well-built with a charming smile, he looked like your ideal Prince Charming at that very moment.

You couldn't say no.

And thus, the two of you danced. Your proximity with him only worsened your arousal, which, at that point, was reaching critical mass.

He carried you through the dance, thinking that your clumsy steps were just because of your nervousness.

Right at the very end, he brought you close to him, your bodies practically touching as you felt your breasts on his chest. Your face and his were ungodly close, your eyes staring at his gorgeous blue eyes.

And then, he kissed you right on the lips.

Your dam burst at that very moment.

You were lucky he was kissing you, or else you would've let out a loud moan.

Realizing what you had done, you quickly broke off from your Prince Charming, running away from the ballroom as if the clock had stroke to twelve. You could feel your cum running downwards on your legs. You thanked the gods that you wore a long dress right now or else everyone would be able to see your embarrassment. You didn't dare to look backwards, afraid that you might have left a trail of your juice behind.

When you got out of the mansion, you quickly took off the source of your shame and threw it onto the ground, going home commando underneath the dress.

Little do you know that your prince charming had gotten his hands on your cum-soaked panties. And he didn't think any less of you for it. In fact, he still searched for you, the owner of the panties, until this day. Alas, you had already gone to the academy once he reached your house.

After that little trip down to the memory lane, you judge that your arousal is still manageable. And the panties' level of arousal are set this time, so no increasing arousal like before. You believe you can handle it, at least until the demonstration is over.

And so you go back to the hall with a peaceful mind. The girl, which, by the way, was called Rosa, you scold yourself for not asking the name of your savior sooner, seems pleased with this arrangement. With her panties gone, her level of arousal has gone down after all.