Sexy Brain Parasite Story

by Damaged


A Deal Made

Rarity and Rainbow Dash watched the two shopkeepers walk away and start whispering. "W-What?" Rarity looked to Rainbow. "Are you okay?"

"Yeah. I feel—I feel a little relieved in a way. I didn't know why it made me feel so wrong when I hugged you. It was fun, but the moment I thought of you as a girl…" Rainbow Dash almost slumped, and despite the burn of her first mouthful, she had some more of the drink.

Spicy strutted back up to his two customers, Sonata at his side. "I don't know how this will work, but we can try to help you both."

"First,"—Sonata looked directly at Rarity, her eyes brooking no argument—"this has nothing to do with relationships."

"Or sex." Spicy nodded to Sonata, and got a nod back. "But you both need to learn about what this means, and I don't want you trying to use the internet as a teaching aid."

"What are you getting at?" Rarity looked from one confusing retailer to the other.

"I'll teach you to be dominant." Sonata almost shivered as she said the words. Beside her, Spicy said the opposite.

"I'll teach you to be submissive." Spicy said the words at the same time as Sonata, but unlike her his gaze was on Rainbow Dash. "And don't for a second think this will be sexual, you know that isn't my deal."

Rainbow Dash's heart started to race. She had engaged in more fantasies about Spicy than she would be willing to admit, and the prospect of him doing the kinds of things Rarity had done got her motor running.

"This is preposterous." Rarity locked eyes with Sonata, but now that the topic had been broached a shiver of interest ran up her spine. Sonata had always seemed so powerful to Rarity. "Wait…"

Sonata smiled. "If you are wondering, I like girls, too. And I am submissive." Her own throat tightened as she said the last word, and Sonata could see the reaction in Rarity's eyes. Memories of times spent in the past flashed around Sonata's head. It had been almost impossible, with her fellow sirens around, to give herself to someone to play with.

"Wait." Rainbow Dash repeated Rarity's word, but had more force behind it. "So what is this going to be, like a class?"

"There will be rules." Sonata cut in before Spicy could answer. "And cute little schoolgirl dresses." She smiled up at Rarity playfully, but the look of interest she got back confused her in its complete lack of any naughty vibes.

"Dresses? There is fashion involved in this?" Rarity spun to look at Spicy. "Why didn't you say so?"

Spicy almost took a step back from the intensity of Rarity's accusation. "There is fashion in everything! What do you see on my shelves?" He pointed around the store.

Rarity groaned, and stared at Spicy with a deadpan look. "Really?" His smile irritated her to the point where she turned. The first thing she saw was vibrators. Lots of vibrators covered the wall, and while nearly a third of them were in dull black, a lot were bright colors, colors that immediately caught her eye as accessorizing.

"You are an insidious worm, Spicy Hot." Rarity tried to pull away, but she kept looking. When her eyes landed on the corsets her breath caught in her throat.

"Oh yes, and we have corsets, underwear, and other things you can put on." Stepping up to Rarity, Spicy reached out to take her hand. For a moment it seemed like she would resist, but then she closed her perfectly manicured fingers around his.

Rainbow Dash watched the two walk off to the clothing section of the store, and tried to tune out their chatter. "I don't get it, though." She turned to Sonata. "Wouldn't another dominant be better to teach her how to be dominant?"

"Yes and no. More no than yes." Sonata giggled at her own statement. "If you wanted to teach someone to drive a car, you would show them how to get in, and where everything is, but the best way to learn how to drive is to drive."

"That—That actually makes sense." Rainbow Dash looked at the box of sale items on the counter, flicking her fingers through the various toys.

"Thanks, by the way." Sonata watched Rainbow Dash pick out a butt plug and raised her eyes a little. "You are a bit new for that. Talk to Spicy about it."

"What's it do?" Turning the plug around in her fingers, Rainbow could tell it obviously went inside, but the shape of the plug reminded her of Thunderbolt a bit.

"It goes in your rear. The angle here lets you clench down to hold it in." Gesturing at the inner bulge, Sonata thought of how exciting it must be for someone to experience everything for the first time. "And I meant thanks for sticking up for me. Even the other sirens never did that."

"Hey, it's what friends are for, right?" Rainbow set the plug in the middle of the counter. When she looked up, she saw Sonata's eyes were wide. "What's wrong?"

"Nothin'." Sonata Dusk had never been called friend by anyone before, not had them actually mean it. "You will want lube with that."

Rainbow Dash picked the toy back up and put it back in the bargain bin. "Maybe another time."

"Had any problems with other crazed monsters? I mean, I heard about the magic stuff at some inter-school games. How did that go?" Sonata was out of ideas, and down to small talk.

"Turned out it was someone who really needed some good friends." Finding something shiny in the bargain bin, Rainbow pulled out what looked like loops of chrome, spring-loaded metal.

"Gag. It spreads open and holds your mouth agape." Sonata demonstrated with her fingers, stretching her mouth as wide as she could, before releasing it. "Some of this stuff is actually medical equipment."

"What, like from a dentist?" Turning the item over in her hands, Rainbow Dash simulated lips around it with her fingers, and squeezed the opening smaller. "Huh…"

"Yeah. Spicy buys them from medical suppliers and sells them for like triple the price. You ever played with your nipples?" Switching topics easily, Sonata plucked out a little package of nipple suction devices.

"N-Not with anything but my hand. What do those do?" Rainbow Dash was entranced by the little plastic cups.

"Wet the skin a little, press down over your nipple, and then twist this bit." Demonstrating on her hand, Sonata left the little cup stuck to skin, although it quickly fell off. "It would stay on much longer if you wet it first. Also, it makes the area more sensitive."

"More sensitive?" Eyes wide, Rainbow stared at them. "They are twenty-bucks, right? Like everything in that bin?"

"Yeah. Packaging got messed up." Sonata smiled, and knew she had just made a sale. "And if you get to like them, well, you could buy some of the more advanced stuff."

"Showing our little newbie some more toys are we? Those can be fun." Spicy Hot walked back up, spotting what Rainbow Dash was almost drooling over. "Okay, so our first little training will be on Saturday night. You will both meet back here, and prepare for a mostly boring first night."

Rarity set the lingerie set she had selected on the counter. "Please wrap them." She kept a tight smile, but couldn't help but look down at the lacy bra and panties. She reached back down one more time before Sonata could grab them, and slipped her hand under the fabric. The contrast was startling on her white skin.

"Selling clothing to Rarity is like shooting fish in a barrel." Rainbow Dash pulled out her wallet and passed her card over to Sonata. "Thanks, Sonata, for explaining that stuff." When the siren passed her back her card and the little packet, she stuffed her card away and the nipple toys into her bag.

"Any time. I am sure you will have other things you will want, maybe we could compare notes some time?" Sonata couldn't help but feel the bond between her and Rainbow. Tighter than the chain Adagio had used, friendship seemed much nicer to her.

"Sure!" Talking with Sonata meant Rainbow didn't have to worry about the "class" she would be coming for on Saturday. At that moment, she quickly remembered something. "Wait, on Saturday? I have—"

"Don't worry." Spicy couldn't believe his luck; he would get to act like a wizard. "It will be in the evening, well after you and Derpy are back from the drag races."

Rainbow Dash couldn't say a word. Her brain stopped, and if Rarity didn't laugh and drag her out by the arm, she might never have left the store. "H-How did he…?"

"We are going to be late for class!" Rarity pushed Rainbow Dash towards her motorbike. "Come on, get on that monster and get us back to school before we get in trouble!"