Amber went off to the shower to begin her ritual cleaning while Elisabeth sat with her brother in his bedroom as he changed into his swim trunks. Nick was nervous, with his sister's eyes on him like that, and despite getting off twice in the last fifteen minutes, first by getting his first blowjob from Amber and then just from seeing his sister eat his cum out of Amber's mouth, his cock swelled to erection again.
"Do you have to stare?" Nick protested, pulling up his trunks in an attempt to hide his bulging erection from his little sister. He succeeded only in making a tent out of his swimsuit.
"Oh, come off it," Elisabeth laughed. "I've already seen your cock and I know you think I'm the sexiest thing on Earth. You don't have it hide it from me anymore."
Nick blushed.
"So... Tell me about this taboo you that Amber violated," Nick said, pulling his drawstring and adjusting his cock in his trunks in a futile attempt to make it fit better.
To Nick's surprise, it was now his sister's turn to blush as she covered her face with her hands to brace herself while she spoke.
"Amber and I took an oath a month ago when we started doing magick," Elisabeth replied nervously. "We're not supposed to have sex with anyone either of us cares about unless the other one is there to participate. It's a bond that's supposed give us a head start with difficult rituals that require two people. Of course, a proper coven is supposed to have three witches, but two is enough for most sex magick."
"Sex magick!" Nick stammered, nearly tripping over himself in his eagerness for information. "You mean you... you... you're having hot kinky lesbian sex with that... That..." he motioned towards the wall that his bedroom shared with the hall bathroom, where Amber was showering. "That sexy creature."
"Amber's my best friend and she's smart, so she was the perfect choice for a partner. I do have to admit, I expected her to have a little more self control."
Nick turned red, remembering how eagerly Amber had pounced on his cock a short while ago, when she caught him alone masturbating. It was so damn hot! But he didn't like that it made Elisabeth angry with Amber.
"What if I join your coven?" Nick asked nervously. "I could be your third witch, assuming men can be witches. Then you could go on with your ritual without having to punish Amber and everything would be ok."
"Nice try," Elisabeth replied, absent-mindedly tugging on her bikini bottoms to make them cling more smoothly to her body. "Amber broke the taboo and that won't be erased so easily." She stepped forward and grabbed Nick by the erection.
Nick gasped. His sister's touch made his cock burn. He wanted to be fucked so badly that it hurt.
"You have some potential, though," Elisabeth whispered seductively in his ear. "And Amber seems to like you. I'll tell you what. Tonight, after you steal Mom's sex toys for me, you can come in and observe me and Amber perform the ritual. If you still want to join us, we'll consider initiating you."
Nick's cock twitched. He was being offered every man's dream. Hot sex with two beautiful women at a time! He nearly erupted in orgasm. And tonight, he'd get to watch the two at them have a go at each other! He could hardly wait.
"Can I watch you punish Amber?" Nick asked, grabbing a towel and wrapping it around his waist. "I feel somewhat responsible."
"Of course," Elisabeth said. "You know enough that we don't have to keep it a secret from you."
"But what will you do to her?" Nick asked, his brotherly instincts running wild. Could he stand by and let Elisabeth do it if it turned out to be something really awful and violent?
"I'd fuck her up the ass with a strap-on, if I had one," Elisabeth replied musingly. "But since I don't, sixty-nine whacks on the ass with a ruler, and then forcing her to go swimming with her bikini stuffed up her pussy sounds like a good idea.
Nick nearly soiled himself. He ran to his desk and pulled out the old ruler he used to hide his used tissues.
"Use this," Nick said in a ragged voice, handing his sister the implement.
Elisabeth accepted it gladly.
"You know what, Nick?" she said, tucking the ruler under the side of her bikini bottoms. "I think you're going to be fun to work with."
She picked up her things and, grabbing Nick by the hand, stepped outside into the sunlight.
Elisabeth set her towel down on the cement near the pool to sun herself while she waited for Amber to join them.
Nick was so nervous that he couldn't sit still, so he dived off the diving board and began swimming laps to burn off some of the anticipation. Any fear he had harbored about Amber's punishment was now replaced with the lucid desire to see something so kinky with his own eyes, and the erection in his swim trunks stubbornly refused to dissipate. It felt like ages before he saw Amber walking to the pool, wearing her little pink bikini. Nick was shockingly aware of her body underneath the material of the swimsuit, as though the bikini acted to emphasize the swell of her breasts and cunt. The way she moved her body was both proud and demure, as though she was bracing herself for some difficult ordeal.
Elisabeth rose from her towel and walked towards her friend, grabbing her by the breast and kissing her briefly on the lips in a sign of greeting. Nick gasped. It was so hot! He pulled himself up out of the pool by the metal ladder and walked over to the couple, who were engaged in a conversation he couldn't hear.
Amber laid herself down on the diving board and Elisabeth slowly began to inch her friend's bikini bottoms down over her ass and down her legs, exposing Amber's soft brown skin to everyone's view.
Nick moaned in appreciation of Amber's tight round little bottom. Oh, how he would love to rub his cock against it. Even thinking about it made his cock twitch excitedly.
Elisabeth pulled the old ruler out from the side lace of her bikini, handling it carefully as though it was something of great importance. She raised the ruler and struck her partner. The sound of the slap rang across the yard. Amber began to cry out and then covered her own mouth to so that Elisabeth's mother wouldn't hear her. Elisabeth stuck again as Amber writhed uncomfortably. Nick moaned and began fondling his cock. He couldn't help it. It was making him so horny. Elisabeth continued slapping her friend's ass with the old ruler, Amber's brown butt quickly reddening. Nick's cock began to twitch and his balls began to tighten. He gasped for air, counting the blows. 63, 64, 65. It was too much for him. He knew that he was going to cum. He pulled himself quickly up out of the pool and rushed into the bushes, fertilizing the shrubbery with his hot white cum in time with the 69th slap.
Nick looked up to see his sister spreading Amber's legs apart and rubbing her clit to get her friend's pussy soaking wet, before starting to stuff her pink bikini bottoms into her. Nick moaned as inch after inch of the material disappeared into Amber's shaved pussy. Finally, the entire article vanished into her filled hole. Amber moaned wildly and Nick's cock hardened again as he began to stroke it frantically. Without missing a beat, Elisabeth unclasped Amber's top and began to insert it also into Amber's pussy. Amber's breasts were slightly larger than his sister's, probably a D cup, while Elisabeth was just a C, and the soft brown color contrasted deliciously with her bright red nipples. Nick squeezed the head of his cock in appreciation. Amber, looking at Nick out of the corner of her eye, gasped suddenly and began to struggle against her punishment, but Elisabeth would not yield. Nick moaned.
Finally, simply no more bathing suit would fit inside of Amber's tight pussy, and Elisabeth had to give up, leaving a trail of fabric hanging out like a tail. She pounced on Amber, giving her clit one long lick before toppling off the diving board and into the pool with her.
Nick dropped his cock and quickly jumping in after them. If something was going to happen, he wasn't going to miss it! He swam underwater next to Amber and tried to press himself against her naked body, but Elisabeth intervened, wedging herself between the two of them so that her clothed nipple landed on her brother's lips. Oh, that felt so good! Nick began to suck, his teeth nibbling slightly, savoring the sensation of his sister's breast. It was like magic.
Elisabeth slapped him gently. It was all underwater, so it didn't hurt, but Nick decided to pull himself out of the pool anyway. He was far too horny to be swimming with girls!
Nick heard the sliding glass door close and felt a shiver run down his spine. Shit, shit, shit! He had completely forgotten that his mom was still at home. She had changed into a little yellow dress, which seemed to kiss her thighs as she walked, her hips swaying side to side. Nick moaned.
"No time to be drooling!" Nick thought. His mother was carrying a tray of lemonade and heading their direction. Nick's cock slowly began to shrink in his swim trunks. Any moment, his mother would realize that Amber was swimming around naked, with her swimsuit stuffed almost completely into her pussy, and all hell would break loose! She's tell Amber's mom and Amber wouldn't be allowed to see them anymore, plus they'd all be grounded, maybe even sent to a psychiatrist!
Nick leapt from the ground. He had to do something! He dashed off to intercept his mother, grabbed the tray from her, perhaps a little too quickly, and told her she ought to go back into the house and watch a movie.
If Susan suspected something, she didn't let on. She simply handed her son the tray and went back into the house.
Nick felt a little guilty, as though he had disrespected his mother, but he had to hide Amber's state. He watched his mother leave with mixed emotions, enjoying the way her butt swayed as she moved. God, he was turning into a total pervert!
He set the tray down on the white plastic table by the pool and called to his sister and Amber, who were both bright red.
"That was a close call!" Elisabeth exclaimed, pulling herself out of the pool, the water dripping off her body seductively. "Can you imagine how amusing it would be if Mom saw?"