"Good tea," Marissa mused, setting her cup down on a nearby tree-stump.  
"Thanks," Reimu replied.  

Suddenly, the two girls heard a distant voice coming from above them, rapidly growing louder.  "Reimu, Marissa... HEEEEEEEEEEEEEEEELLLLLLLLLLLLLLLP!!!"  

The two girls looked in the direction of the voice, and noticed the form of a black-winged tengu.  It was Aya...  

"Cirno's attacking me for NO REASON!!!" The newcomer protested as she landed near the two girls.  
Reimu froze awkwardly.  Marissa pointed at the blue dress held tight in one of Aya's hands.  "What's that?" She inquired.  

Aya paused.  "Well, I..." She stammered, "I was... just trying to take her picture."  
"Uhuh," Marissa replied, "And you wouldn't suppose that might have something to do with why she's after you, would it?"  
"But..." Aya protested, "But... I mean... it's a COMPLIMENT!  I think Cirno would make a LOVELY underwear model..."  
"Don't worry, Aya," Reimu interjected helpfully, "We'll help you out, just come with me and..."  
The shrine maiden was interrupted by the sound of Cirno shouting.  
The three girls turned to face the snow fairy.  Sure enough, other than her signature blue ribbon and footwear, Cirno was otherwise clad only in a pair of winter-white cotton panties and matching bra.  

"There you are, you little snot nosed tengu!!" the underwear clad snow-fairy announced, "I'm gonna turn you into a popsickle for this!"  
"Cirno," Aya began, "Might I just say that you're looking LOVELY tod-..."  
"SHUT UP, just SHUT UP!" Cirno interrupted, "YOU STOLE MY DRESS AND NOW YOU'RE GONNA PAY!"  

"Cirno, please, have mercy on Aya, I'm sure she meant well," Reimu pleaded.  
Cirno glared at the shrine maiden.  
"Cirno, I'm very sorry for trying to take your picture..." Aya explained, bowing deeply, "If you have mercy on me, I'll gladly give you your dress back!"  

There was a momentary pause.  

"Not good enough..." The snow fairy growled, her arms folded defiantly across her bra-clad chest.  

Marissa walked over to Aya, and took the blue dress out of her hand.  She then placed one hand on the shoulder of Aya's dress, and began to lift.  

"Hey, what are you doing?" Aya protested.  
"Saving your life," Marissa explained, "Reimu, can you help me out here?"  
Reimu gave a sheepish smile at the notion, but walked over to help anyway.  Taking Aya's camera from her with one hand, she pulled up on the dress with the other.  
"I... I didn't agree to this..." Aya protested.  
"Please, Aya," Reimu explained, "If it'll help placate Cirno, isn't it worth it?"  

Aya hesitated, but eventually she lifted her arms, and quietly let her dress be lifted off of her, leaving her in a simple pair of silky white panties and a strapless bra.  

Bundling the two dresses in one arm, Marissa walked over to Reimu and took the camera in her free hand.  The young witch then proceeded to walk forwards, placing the three items in the center of a small, grassy hill between where Aya and Reimu were standing and the point where Cirno was hovering.  "There, see?  Now you've got your dress back, and you've got Aya as bad as she got you," Marissa explained, before walking back to where the now somewhat under-dressed tengu was standing.  

Aya started to bow again.  "Please forgive..." she started, but was interrupted by Marissa pressing firmly on her back.  
"You're gonna have to do better than that," the young witch explained, pushing on Aya until the tengu fell to her knees.  

Aya kneeled in the grass and lowered her head as far as she could comfortably go.  "Please forgive this humble tengu," she pleaded.  

"Still not good enough..." Cirno countered.  

Aya blanched.  Reimu and Marissa shared knowing looks, and promptly proceeded to kneel down next to the tengu.  They quickly undid her bra, and then proceeded to slowly lower her panties.  Aya winced, but lifted her body slightly, followed by her knees, and then her legs, all so as to allow the two girls to finish removing her undergarment.  The two girls even went so far as to remove Aya's shoes with her panties, just for good measure.  
"Please forgive this," Aya began, but felt Marissa pushing on her back again.  Aya bowed even further, allowing her head to touch the ground.  

"Please, I beg of you, please forgive this humble tengu," the now fully naked Aya pleaded.  

Cirno paused.  "... Still...  Not...  Good...  Enough..." she hissed.  

Aya looked up at the snow fairy.  "But... but how can I possibly..." the naked tengu began, but was interrupted when Cirno raised a finger.  

"It occurs to me," the snow fairy started, raising her gaze to look at Reimu and Marissa "That since you two are trying to negotiate on the tengu's behalf, perhaps you two should be pleading with her?"  

Reimu and Marissa turned pale.  Then, slowly, Reimu turned beat red, as she began to remove her dress.  The shrine maiden was wearing frilly red side-tied panties and a matching bra, which she promptly began to undo.  

After a moment, Marissa gave a soft grunt of frustration, before taking her hat off and placing it down on the ground beside her.  She then proceeded to remove her own dress, leaving her in nothing but a pair of pink bloomers.  

Meanwhile, Reimu had finished removing her undergarments and even taking off her footwear, leaving her completely naked save for her hair-ribbon, and was proceeding to slowly make her way to where Marissa had left the previous two dresses.  As she set her own clothes down with the rest of the heap, she noticed that the air had grown a tad nippy, most likely a gift from their fairy friend to add to the moment.  

As Reimu began to make her way back to Aya's side, Marissa picked her hat back up and started her own trek, having a somewhat faster and less ceremonious pace than the shrine maiden as she went to deposit her dress.  The witch then returned, her hat now clutched to her bosom with one hand, and knelt down on the other side of Aya.  

"G-Great... Great snow..." Reimu began, clearing her throat briefly as she struggled to regain her composure, "Great snow fairy...  This lowly shrine maiden humbly begs of you, please, have mercy on Aya.  She knew not what she was doing."  

"Forgive the stupid tengu, please..." Marissa muttered.  

Cirno laughed.  Oh what a lovely show she had before her.  Gensokyo's most legendary pervert, as well as two of its heroes, were now kneeling before her in a show of humility, their heads pressed hard against the cold earth, their bodies stripped naked as the day they were born.  Well, almost...  

"Aren't we forgetting something?" Cirno began, slowly.  
Marissa paused.  "I'm not taking off my bloomers..." She muttered.  

There was a pause.  "What was that?"  Cirno inquired.  
"I said I'm not taking off my stupid bloomers!" Marissa protested.  

There was another pause.  "Fool," Cirno muttered, "I'll teach you some respect..."  

The air started to grow very cold.  

Then, suddenly, there was a bright flash of light.  Cirno let out an audible gasp, followed shortly by the sound of a body hitting the ground hard.  Aya and Reimu looked up, and noticed the snow fairy now lying on the ground, twitching.  

"Idiot.  You should learn not to over-stretch your victories..." Marissa muttered, wandering over to retrieve her dress.  

Reimu and Aya paused, their jaws open in disbelief.  Then, Aya got up and quickly retrieved her clothes and camera.  Reimu soon followed her, bundling her clothes into her arms.  As Marissa finished placing her clothes back on and Reimu finished gathering her own garments, the two noticed Aya, now fully dressed, running over to the still incapacitated snow fairy.  

The two girls watched as the tengu quickly pilfered Cirno's undergarments, tucking them into her own panties before proceeding to take pictures of the now naked girl.  

Slowly, Reimu turned to face Marissa.  "We... should probably go," she explained.  
"I'm inclined to agree," Marissa responded, turning to make a hasty retreat.