Mary was silent as she floated through the open window of her bedroom. She knew the rush of wind from her fast return flight had likely already awakened her brother. Mary stared at her reflection as she walked by the mirror in front of the bed. The sight of her naked, voluptuous form made her cunt tingle, even though the soreness from the three molesters in the alley still lingered. Mary idly fingered her sticky snatch as she walked to the bathroom to take a shower.
Mary groaned as she felt the hot downpour wash over her. She ran her fingers through her sticky brown hair, being careful to wash all the dried cum from her thick tresses. Mary tilted her head back, allowing the water to wash the jizz from her cheeks and chin before opening her mouth to rinse out the remaining taste of man juices on her tongue. The warm tingling in her cunt intensified as Mary scrubbed her heavy breasts. Mary lowered her hands to her crotch, spreading her labia apart to wash away the remaining dried male discharge. Moaning, Mary pressed her left hand between her slick, quivering legs and rubbed her hot pussy vigorously. Mary spread her legs apart and slowly rolled her hips as she fondled her dripping slit. Her other hand roughly squeezed her right breast as the fires of her lust grew hotter. Mary stuck two fingers between her labia lips, whimpering in ecstasy as she slowly forced them deep inside her womanhood. Mary leaned back against the shower wall, rubbing her buttocks against the tiles as she slit up and down the wall in time with her finger thrusts. The masturbating girl arched her back, her cry echoing through the bathroom a thigh-quaking orgasm rocked her dripping wet body. Panting, Mary leaned against the wall; her breasts heaving as the shower continued deluging her with hot water. Slowly, Mary raised her left hand and licked the honey from her fingers.
After Mary had finished cleaning her body of the remnants of her back alley encounter and her masturbation, the naked heroine stepped out of the shower and began drying her hair with a towel she plucked off a nearby rack. She padded barefoot to her bedroom where she saw her brother searching through her underwear drawers.
"Looking for something?" asked Mary as she continued drying her hair.
"I uh, just," stuttered Billy as he let his eyes wander over Mary's nubile body.
"Looking for my Black Mary costume? You like smelling it when I'm not wearing it? Or maybe my panties? You little pervert," said Mary condescendingly.
"Where were you?" asked Billy.
"I was doing patrol. I saw these carjackers. So I let them fuck me all at once for a couple of hours. They ended up not stealing the car. Just doing my job as a superhero," said Mary coldly as she rubbed her large breasts with the towel.
Billy's mouth hung agape and he angrily pointed at his sister. "What's wrong with you?! You little slut!"
Mary responded by throwing the towel to the floor, smirking as she noticed Billy become taken aback at the sight of her unobstructed nudity. Mary strutted across the room to where Billy stood, swaying her hips and staring at him with her sultry blue eyes as his anger visibly ceded to his lust.
"You're angry Billy, but only because you're jealous that somebody else got to fuck me," purred Mary as she caressed her brother's flushed face.
"I, I," Billy stuttered as sweat beaded on his forehead and his eyes locked upon Mary's dripping bosom.
"For what it's worth Billy, I like how you fuck me more than any of them did. And I like sucking your dick more too," whispered Mary as she pressed her nude body against her brother. The naked heroine smiled as she felt Billy's rigid dick rubbing against her thighs through his pants.
"You want to fuck me Billy? I know you want to. And I know you're angry, so you can fuck me as hard and as rough as you want and I'll let you do it. I'll like it," purred Mary directly into Billy's ear before she wet his earlobe with her tongue.
Billy pulled Mary's head back by her wet brown hair and glared at his defiant sister for a moment. Mary smirked at her brother in response. He fumed at the arrogance and wanton lust Mary exuded before hungrily kissing the naked heroine's yielding lips. The kiss was quickly broken off when Billy pushed Mary away and angrily slapped his naked sister across the face, but the buxom heroine barley flinched despite her brother's intensity.
"You want to hurt me? You want to make me beg for mercy?!" Mary spat.
"Fucking slut! You're not my sister! You've corrupted whatever she was! I don't want you here anymore!"
"What's wrong Billy? I was good enough to fuck but not to stay here?" purred Mary defiantly.
Billy growled and gave Mary another harsh slap to the face. Mary pouted her lips at her brother in response, prompting him to retaliate with a punch that was fierce but ineffective to the super powered heroine.
"You really want to make me feel something Billy? How about spanking me?" Mary purred sardonically as she bent over her bed and lifted her round ass towards her fuming brother. Billy stared down at his sister's upraised buttocks. Mary caught Billy's lingering expression and wantonly spread her legs, revealing her puffy pussy to him. Possessed with a burning anger and an equally hot lust, Billy whacked Mary across her rear with the palm of his hand. Mary gasped and clutched the bedsheets beneath her naked body.
"Oooh, mmmm, Billy," moaned Mary lustfully, "it hurts so much, stop it."
With great deliberation, Billy whacked Mary's bucking bottom over and over again with his hand. Mary squirmed and squealed beneath her brother as her asscheeks became bright red after repeated blows. Sweat beaded on Billy's flushed forehead as he caught his breath and his hand throbbed with numbness. The smell of Mary's arousal began to fill his nostrils. He stared down at his naked sister's sensual body as she lasciviously writhed on the sheets. Mary looked over her shoulder and flicked her hair to gaze at Billy with naked lust as she propped herself on all fours and eagerly hiked up her ass. Billy could see Mary's wet pussy drooling strings of sticky spunk that flowed down her thighs.
"Please Billy, stop, don't punish me anymore," Mary teased as she cupped her asscheeks and spread them apart.
Angrily, Billy slapped Mary's sore bottom several more times. Each time elicited a louder, more sensual moan of pleasure from Mary.
"Harder! Hit me harder!!" begged Mary as she clawed the bedsheets.
Billy spanked his sister's rounded ass with all his strength. Mary filled her mouth with bedsheets to stifle her sensual moans of pleasure. As Billy began to tire from his efforts, Mary sat up and grabbed both of his wrists. Gently, she led her panting brother to the bed and laid him on his back.
"I'll be a good girl now Billy, honest," Mary purred as she straddled Billy's prone form.
Billy wrapped an arm around Mary's neck as he kissed his sister passionately. After a few moments of fierce tongue embraces, Mary hugged her brother's head to her heaving breasts. Billy eagerly planted kisses on each of her swaying mounds before flicking his tongue over her swollen nipples. Billy grasped Mary's tits with both his hands and squeezed them as he suckled harshly on her right nipple. Mary's grip became firmer on the back of Billy's head as she pushed him deeper into her bosom. Mary lowered her left hand to Billy's crotch, unzipped his pants and slipped her fingers inside to find his bloated cock. She grasped it firmly for a moment before beginning to gently stroke the length of Billy's manhood. Billy looked up into Mary's face, her eyes stared down at her brother with such intense lust he was left slack jawed with her soft breast still in his mouth. Mary's gentle strokes intensified and soon her hands massaged both his testicles and his cock. Billy fell backwards as Mary jerked him off so hard the bed began to creak. With a loud groan Billy finally came into his sister's hands. The mirror behind the bed became visible to Mary when her brother fell backwards. She watched her reflection intently as she rubbed some of her brother's jizz on her heaving, saliva-stained tits before licking the rest off her hands.
"Oh Mary, you're an animal," purred the familiar, seductive voice of Eclipso.
Mary saw the pale blue figure of her mentor fade into the reflection, although a quick glance revealed there was nothing behind her. Mary still felt the strange, familiar coolness that radiated from Eclipso's naked body as if she were really there.
"Don't mind me Mary, I'm just here to watch," said Eclipso as she stood behind Mary and slowly began pleasuring herself to the sight of the sibling's coupling.
Mary crawled over Billy, positioning her crotch over her brother's flaccid penis while keeping her eyes locked on the pale reflection of Eclipso. Mary slowly ground her pussy over Billy's cock, whimpering as she felt it slowly rise back to life. Eclipso smiled encouragingly to her pupil as she cupped her milky breasts and brazenly fondled them. When she felt Billy's cock become erect once again, Mary laid herself beside Billy and guided his cock to her pussy.
"Fuck me Billy, fuck me hard like a nasty whore, you little bastard," Mary murmured.
Billy shifted positions so that he was on top of his prone sister. Mary looked over her brother's shoulder to stare at the mirror on the ceiling; she saw the familiar shape of Eclipso looking down at her. The naked pale woman was now writhing in the throes of a building orgasm. Her hips thrust rapidly against her probing fingers and her free hand blindly fondled her naked tits. Both Mary and Eclipso moaned in unison as Billy pushed his cock into Mary's cunt. Mary and Billy writhed against each other as Billy angrily forced more and more of his member inside his sister's pussy. Mary threw back her head, her breasts bouncing and her hips rocking from Billy's intense thrusts.
"Fucking whore!" Billy growled between loud grunts of effort.
"Oh Billy stop it please!" Mary cried out insincerely, even as she pushed forward with her pelvis in response to every one of Billy's poundings.
"You slut! You corrupted my sister!"
"Oh Billy please your cock is too big! Stop it! Stop fucking me so hard!!"
"Take it all you fucking slut! All of it!" Billy snarled as he dug his nails into Mary's hips and thrust his aching cock into his sister with all his might. Mary sobbed and closed her eyes in ecstasy; her fingers clutched the sweaty sheets beneath her as her body was rocked by Billy's humping motions. Mary wrapped her long legs around Billy's waist as she took Billy's hard cock deep inside her belly.
"Cum inside me Billy! I want it!!" Mary screamed.
Mary wrapped her arms around Billy's neck and the two siblings kissed hungrily as they crashed their hips into each other. Their lips melded together as their breathing became more ragged as Billy plowed with his last remaining strength into Mary's clenching cunt. Billy and Mary climaxed simultaneously; both of them threw back their heads and moaned deeply as their pelvises shook. Billy's cock exploded deep inside Mary's belly, squirting stream after stream of warm seed into her ravenous womb. The two lovers held their sweaty bodies against other in a possessive embrace; Billy held his sister's hips against his while Mary locked both her arms and legs around her brother as she felt him finish discharging between her legs.
The naked heroine rested on her back as she let her sweaty dark hair out of her face to watch Eclipso's approving reflection in the mirror above her bed. Billy tugged his cock out of his sister's vagina and licked the droplets of perspiration sliding down Mary's quivering breasts. Eclipso gave Mary a deliberate wink and then faded out of sight, leaving only the two sweaty siblings in the reflection. The naked heroine smirked in acknowledgment but otherwise paid no attention to her departed mentor. Mary instead rolled out from underneath her brother and began stroking his flaccid cock to hardness once again.
***
Mary slowly freed herself from her sleeping brother's limbs and slipped unnoticed to the bathroom. After relieving herself, the naked heroine stared at her reflection in the mirror. She still felt sore from hours of raw, passionate sex. The usual burning need to fornicate had subsided and instead Mary looked at her mature body with confusion.
"Shazam," she whispered impulsively.
The loud lightning crash woke Billy and the bright flash of light compelled him to run to the nearby bathroom.
"Mary?! What happened?!"
Billy found his sister curled up naked in a fetal position on the floor. Her sobs were audible and rapid and she noticeably turned away when she saw Billy approach.
"Get away from me Billy, I can't even look at you!"
"Mary, sis, come on," Billy pleaded with an extended hand.
"You fucked me Billy! I can't believe it! Why the fuck would you do that?!"
"You, you came onto me!"
"But you knew who I was and you did it anyway! How could you?!" Mary screamed as she finally faced Billy.
"Mary, you know the truth now don't you, about the transformation," Billy said.
"What? What does that have to do with it?" Mary sobbed.
"The wizard's magic doesn't transform us. It never did. It makes us switch places with our alternate persona," Billy explained as he sat on the toilet. Mary once again moved as her brother got closer to her but continued looking at him intently.
"I don't understand, who was Captain Marvel then? Who was Mary Marvel?"
"They are kind of like separate people who were born when we were first granted powers. But we share their memories, so it's almost as if we are the same people. They kind of share our minds too."
"Kind of share our minds?"
"Their personalities are kind of like the ideals of what we want to be. That's why it's usually not so noticeable that we sometimes do things we wouldn't do in our normal forms when we're superheroes. Captain Marvel was kind of a big boyscout. It's how I really wanted to be at the time."
"And what about, Black Mary?"
"You said you got your powers from Black Adam right?"
"Yes."
"Black Adam's powers come form darker gods. They drew upon darker fantasies."
"So I wanted to be a slut?"
"Not exactly. It's more like, there's a small part of you, really deep down probably, that thinks about being a slut. It drew upon that. It's why it made your new body so hot, and your new personality so easily aroused and sexual."
"Don't say that Billy!" Mary yelled.
"What? There's nothing wrong Mary. I technically wasn't fucking you. I was fucking your other form. I liked it a lot," said Billy as he stood up and stared down at Mary's curled up form.
"Stop it! Stop it! Get out!"
"Bring her back Mary," Billy said.
"What?"
"Say the word and bring her back, I want her back," Billy insisted.
"What? No! I'm never bringing her back!"
"If you don't, I'm going to make you."
"What? Billy, what are you talking about?" Mary asked cautiously as Billy loomed directly over her.
Ignoring his sister's pleas, Billy grabbed a handful of her dark hair and dragged her back to the bedroom. Mary yelped as she was thrown across the bed; the smell of sex still lingered on the sheets. Billy forced Mary on her stomach and held her down with the weight of his body.
"I want her back Mary," Billy growled into his sister's ear as he gripped her wrists tightly and kicked her legs apart.
"No, please Billy don't," Mary cried as she saw the intensity on Billy's face in the large mirrors around the bed.
"This is your last chance Mary before I stop asking nicely," Billy insisted as he slapped Mary's ass harshly.
Mary sobbed but shook her head.
"You asked for it," Billy warned as he rubbed his hard knob over her asscheeks.
Mary cried out, arching her spine as Billy worked his fat cock into her warm rectum. Mary sobbed continuously as her brother humped her bucking bare butt, her feet kicking in the air as she buried her tear-streaked face in a pillow. Billy licked his sister's shivering spine between loud, bestial grunts. He dragged his tongue along the curvature of Mary's bare, sweaty back until he nuzzled his sister's thick, sweat-soaked brown hair.
"Change into her Mary, say it! Say it!" Billy demanded as he plowed his sister down into the mattress.
There was no reply from Mary except for louder cries. Billy grew frustrated and spanked Mary hard as he humped her with greater ferocity. Billy pounded her bucking ass until he climaxed inside her clenched rectum. The young man grunted with release, forcing his hips into Mary as he ejaculated through her sphincter. When he finally unplugged his sister's ass, dribbles of white semen spilled out to flow down Mary's trembling thighs.
"You want me to fuck you again Mary? How about I pop your cherry in your little skinny body?" Billy threatened as he rubbed his flaccid cock over Mary's virgin sex.
"Shazam," Mary wept softly in defeat.
The lightning crash blinded Billy for a moment and he fell off the bed from the intensity of the light. When he reopened his eyes, Billy smiled as the first shape that came into focus was the tall woman in black he was hoping for.
"Mmmm, thanks Billy," moaned Mary as she slowly ran her hands over her mature curves. "Your sister is a little wuss."
"I know. I never want you to change back to her. Can we fuck now?"
"It's the least I can do to thank you," Mary replied as she pulled her black shirt over her head, freeing her voluptuous breasts. Mary led her slack-jawed brother to the bed where they eagerly fornicated for several more hours.
***
"Eclipso?" Mary called out as she gently landed on the rooftop.
"I'm always with you Mary," Eclipso's voice whispered in Mary's mind.
"I know, but you said you wanted to talk to me in person," Mary retorted.
"Peekaboo!" said Eclipso as she cupped Mary's generous bosom from behind.
Mary turned to face her mentor and the two kissed passionately. Mary murmured as Eclipso circled over Mary's hardening nipples through the black material of her costume. Without resisting, Mary was pushed down to lie on her back; looking up at her naked, pale blue mistress.
"Oh my Mary, you really like fucking don't you?" said Eclipso as crawled on top of Mary.
"What? Can you blame me?" Mary scoffed.
"I think you can do more than your brother. You have the strength to dominate, and the body to please anyone," purred Eclipso.
"Dominate?"
"Yes Mary. I think it's time for Mary Marvel to grow up even more."
"Who were you thinking of when you said I could do more than Billy?"
Eclipso raised her palm up and glowing image of a superheroine appeared out of the thin air in front of Mary.
"Ooh, she's got tits almost as big as mine," said Mary as she brazenly cupped her own voluptuous chest.
"She has a particular weakness, so she'll be an easy target. And not to mention I think she'll be a lot of fun," said Eclipso.
"What's her name?"
"Karen Starr, also known as Power Girl," Eclipso said with a smile.
***
Power Girl flew through the window of her penthouse apartment and closed it behind her. She wiped her short blond hair out of her face and removed her red cape, letting it fall to the floor without a look. The tall heroine hummed nonchalantly to herself as she removed her blue gloves and boots, leaving her in nothing but her white leotard.
"Hey, save a little fun for me," Karen heard.
"Who's there?!" Karen replied.
"Just me," replied Mary as she stepped out of the shadows behind Power Girl.
"Mary Marvel?" stammered the blond heroine as she recognized the lightning bolt symbol on Mary's costume, even though nothing else was familiar about the rest of the attire.
"No. My name is Mistress Mary now. And I'm tired of being treated like a little girl. I'm going to do what I want from now on," said Mary as she wantonly stroked her black latex-clad torso. The large lightning bolt on her chest was now a shaped hole through which Mary stroked her sweaty cleavage. Black, elbow-length, fingerless gloves adorned her arms, and her long legs were clad in fishnets supported by a black garter belt and knee-high heeled boots.
"You think you can just come in here and do whatever you want to me?" Karen retorted with noticeable effort.
"What's wrong Power Girl? You look a little light-headed. Maybe it's the kryptonite ring I'm wearing. I just recently found out that you were affected by this stuff, and it's become pretty easy to come by these days."
"No, I, leave me alone," murmured the busty blond as she visibly began swaying on her feet.
"Oooh, poor Karen," Mary said insincerely as she raised her hand at Karen to reveal her ring with a tiny green stone. "Don't worry, I only got one just large enough to weaken you. It won't kill you. It won't even knock you unconscious."
Mary waited and watched sadistically as Karen grew weaker until the tall blonde was unable to stand up straight. Mary took Karen by the hand and guided her to the bedroom, where a massive four-poster bed awaited. Karen fell to the soft sheets on her stomach after Mary forced a shove to the middle of her back. Karen attempted to murmur a few words of resistance but she was unable to even lift her head from the soft silk her face was buried in. Karen whimpered as she felt Mary slowly tear away her white tunic, until her body was displayed in all it's lush nudity.
"Mmmm, so luscious," purred Mary as she cupped Power Girl's round asscheeks. With a sadistic grin on her face, Mary spanked Karen harshly. Mary moaned with increasing volume and lust as Karen gasped in response to the sharp stinging pain of Mary's palm. Mary turned her prone captive over and crawled on top of her so they were staring face to face. Mary enjoyed the look of fear and pleading in Karen's eyes as she bound the heroine's wrists to the headboard with a pair of handcuffs.
"A simple pair of handcuffs, too bad you can't just break them while you're near this little green stone huh?" Mary said as she brazenly waved the kryptonite ring in Karen's face.
Mary climbed onto the bed with Karen, leaning over as she stroked the blonde heroine's long legs with her tongue. Streaks of saliva gleamed from Power Girl's thighs to just below her vagina before Mary slipped her tongue across the naked blonde's womanhood. Mary clutched Karen's shaeply hips as she lathered Karen's shaved, swollen pussy with saliva. Karen moaned soflty, her fingers writhing as her crotch grew wet from Mary's obscene adoration.
Unconsciously, Karen started to buck her crotch as Mary began to slurp on each of her tender labia lips. Karen clung to the bedsheets above her head, moaning and whimpering while Mary loudly slurped on her inflamed, gleaming pussy. As she held Karen's quaking knees apart to keep the busty blonde's pale legs open, Mary poked her tongue through Karen's honey-slick vaginal petals. More sweet honey dribbled out from Mary's attentions as she sucked deeply on Karen's engorged clitoris, making the voluptuous heroine squirm beneath her. As she lifted her face from Karen's musky crotch, Mary removed her black leotard. Karen's eyes widened at the sight of Mary's breasts bouncing free.
"I know, I get horny looking at my naked body too," purred Mary as she crawled over Karen and straddled the bound girl's lovely face. Karen moaned weakly as Mary's sopping wet cunt was forced onto her quivering lips. Reluctantly, Karen began sucking on her tormentor's drooling snatch. Mary shuddered and buried her gloved hands in Karen's golden hair as she worked her melting cunt back and forth over Karen's caressing lips. With her gloved fingers buried in Karen's scalp, Mary arched her back and sensually roared as she squirted warm streams of honey into Karen's mouth. The blonde heroine's initial protests were muffled before they died out and she submitted to swallowing Mary's sweet juices.
As the afterglow of her climax faded, Mary stared down at Karen and saw the fear and hesitance still in her eyes.
"What's wrong Karen? Not enjoying this? I have an idea, I got this little item that'll really help you out. It's kind of like an aphrodisiac for you kryptonians isn't it?"
"No, not..." Karen whimpered.
As she ignored her busty captive's pleas, Mary reached into her boot and pulled out a box that was the size of her pinky finger.
"I wasn't sure if I would need this, so I kept it in a lead box just in case," Mary explained as she deliberately opened the tiny box to Karen's horror.
Mary produced a delicate silver chain from the box that had a small red glowing stone the size of a pinhead. She dangled it in front of Karen and the blond heroine moaned audibly as a sheen of sweat formed over her naked body.
"No, please, put it away!" Karen begged as a sensual heat began radiating with increasing intensity from between her legs.
"Oh no, I got this red kryptonite especially for you," said Mary with a malicious grin as she tied the chain around Karen's neck.
The blonde heroine arched her back and sobbed as the red stone nestled between her heaving, sweaty tits. Juices began leaking from her cunt and her nipples throbbed with pain. Every nerve in her body was bombarded with a sensual heat that overwhelmed the bound heroine. Karen weakly attempted to shift her body to move the small chain but her efforts to dislodge it were in vain. The combination of red and green kryptonite stones left her helpless and horny. Sweat pooled in the deep valley of her cleavage and her nipples became visibly erect.
"Shh, you're fighting, don't. Give in to it Karen," purred Mary as she cupped Power Gir's pliant tits. The blonde heroine shivered as her large breasts enfolded the searing red stone. She whimpered against Mary and incoherently begged her to stop with mumbles and a pleading stare into Mary's vicious, lust-filled eyes. In response, Mary grabbed a handful of Power Girl's golden hair and kissed her roughly. Mary's tongue thrust between the blonde heroine's wet lips with little resistance. Gradually Karen's compliance grew, and soon the two women's tongues entwined wetly with equal passion.
After their lips separated, Mary dismounted Karen's face to focus her attention on Karen's nightstand to her right. Mary opened a drawer on the nightstand and saw a collection of large dildos crammed into the tiny space.
"Oooh Karen, you are a filthy little cunt aren't you?" purred Mary.
After prodding through the collection of sex toys, Mary pulled out a long black one covered with studs and each end had a bulbous tips. Mary forced one end in her open mouth and moaned wantonly as she slathered the bulbous tip with saliva in front of Karen, who watched helplessly yet intently. With a sensual smile Mary spread her vaginal lips apart with one hand and shoved the wet dildo into her pussy. Mary moaned as she forced it deeper inside of her, feeling the studs stimulate the inside walls of her womanhood. Karen felt her crotch grow moist and unconsciously her legs spread open as Mary slowly crawled towards her prone form. Mary lined up her crotch with Karen's before thrusting forward with all her might.
"Yes!" Karen moaned as she was penetrated by the long, studded dildo.
Mary and Karen locked their legs together. Both women moaned as their wet labia lips locked in a hot, wet embrace as they writhed more ferociously. Their humping motions intensified, sending their large breasts bouncing. Karen flexed her pelvis as hard as she could; the influences of the two kryptonites made her physically weak but overwhelmed with lust. Mary grinned as she made the bed rock with the violence of her stabs into Karen's pussy. Karen's cries became louder and more ecstatic as writhed helplessly beneath Mary, her senses now overwhelmed by the kryptonites and the building, ferocious orgasm she anticipated. Mary cupped Karen's bouncing left breast and squeezed the heavy mound of flesh harshly as her breathing became more and more laboured. With equally loud cries of passion they two voluptuous women arched their shuddering spines as they climaxed in tandem. Hot honey erupted from the union of their crotches and splashed over their entwined legs.
As the two women panted from the ferocity of their simultaneous climax, Mary saw the naked form of Eclipso in the corner of her eye. The blue-skinned woman was writhing in the throes of an orgasm as she sat on a chair beside the bed with her right hand over her crotch and the other squeezing her sweaty breasts. Mary caught her mentor's approving nod before she vanished from sight.
"How about another round, without this?" Mary said as she removed her green kryptonite ring and placed it into the tiny lead box she had previously used to store the red kryptonite necklace that still nestled between Karen's sweaty, heaving breasts.
"Yes mistress," Karen replied as she felt her super strength return. The blonde beauty broke free of her handcuffs with a flex of her powerful arms, but obediently laid her hands at her sides as she and Mary shared a wet, breathless kiss. Karen spread her legs apart as Mary began massaging her lover's crotch to a sticky lather once again.
***
Billy slowly opened his eyes as he drifted back into consciousness. He shifted his naked body upon the sweat-soaked bed to look at Mary, who was lying beside him. Her nude body was warm and slick after hours of intense fucking. Droplets of perspiration beaded off Mary's heaving breasts. Her hair was soaked with perspiration and semen. Billy brushed some of Mary's damp hair from her new beautiful face. Despite his exhaustion, the sight of her nudity and the memories of their intense fornication made Billy's cock ache. The young man pressed his body close to his sister's voluptuous curves and rubbed his manhood between her slippery thighs. Mary stirred awake when she felt her cunt get brushed by Billy's flaccid penis. She smiled softly as she grasped his cock and began stroking Billy's it back to hardness. Billy embraced his nude sister and ran his hands over her breasts and hips. The two siblings kissed deeply, their wet tongues teased each other as they exchanged hot breath.
Mary opened her legs and wrapped them around Billy's as she guided his newly erect cock to her gaping womanhood. Moaning in tandem, Mary and Billy humped each other with increasing vigor. Mary's hips rolled as Billy thrust his hard prick in and out of his beautiful sister's moist pussy. Billy clutched at Mary's rounded asscheeks and pumped faster between her long thighs.
"Stop fucking me Billy! Please! It's so wrong for us to keep fucking!" Mary cried sarcastically as she wrapped her arms around Billy's shoulders.
"Fucking bitch!"
"Don't come inside me Billy! No! Please no!" Mary sobbed as she felt her vaginal muscles tighten around her brother's hard cock.
Billy bit down angrily on Mary's engorged nipples but continued cursing his sister through mouthfuls of her breast. Mary clawed at Billy's back, writhing sensually against him as she held Billy against her voluptuous bosom. Her warm lips cried out in Billy's ear as she felt him penetrate her deeper and deeper until they both shuddered within each others embrace. Billy growled as his cock gushed his warm seed into Mary's womb once again.
"Take it all you nasty whore!" snarled Billy between harsh grunts.
"Give me all your fuck! All of it!!" screamed Mary.
Mary and Billy's hips moved in tandem as rivulets of Billy's cum mixed with Mary's dribbling love honey to spill from between their shivering crotches. Billy groaned as he felt the last of jizz blast into Mary's shuddering stomach. He pulled out of his naked sister and laid beside her, panting and drenched with sweat. Mary smiled and gave Billy a quick peck on the cheek before leaving their sweat-soaked bed.
"Where are you going? I was hoping you'd ride me again in a few minutes," panted Billy.
"Duty calls," Mary answered as she put on her long black gloves.
"Your duty is to ride my cock," said Billy.
"It's not exactly my duty Billy. It's more like my favorite hobby. But I have other obligations too."
"Ok," sighed Billy.
"But don't worry little brother I haven't forgotten about you. I've got someone you should meet who will keep you company while I'm gone. Slave!"
At Mary's command, Power Girl entered the bedroom obediently. Her eyes were cast down and her beautiful face was framed by her blonde hair. Billy still recognized her immediately due to the familiar white costume she still wore.
"You know who this is right?" asked Mary to her clearly awed brother.
"It's Power Girl! Damn!" replied Billy as he stared at the voluptuous blonde heroine.
Mary circled around Power girl's tall frame. The blonde heroine never looked up at the black clad mistress until Mary cupped her slave's chin and the two kissed wetly. Billy's cock immediately grew stiff as he watched his sister and Power Girl french wantonly in front of him.
"Take off your clothes whore," Mary whispered fiercely.
Power Girl nodded and unclasped her cape. Billy already began beating his cock as Power Girl removed her gloves and boots. He bit his lip with anticipation as Power Girl reached behind her back and unzipped her white tunic. Billy gasped as the heroine's enormous breasts sprung free of the confining garment.
"Stop beating yourself so fast Billy, or you're going to have nothing left for her," said Mary as she slapped Power Girl playfully on her round ass. Power Girl squeaked but otherwise did not respond to Mary's gesture. Mary motioned with her head towards the bed, and Power Girl obediently began walking towards Billy.
"I can't believe I'm going to fuck Power Girl," said Billy as he licked his lips.
"What's the big deal about Power Girl?! I'm goddamn Mistress Mary. And you get to fuck me all the time!" Mary sneered.
"Well how about one more for the road then? Both of you at the same time?" Billy suggested as Power Girl climbed into his bed.
Mary glanced at the submissive Power Girl, who smirked slightly without looking up.
"When I'm here, only I get to feel his cock inside me," Mary stated fiercely to her pet.
"Yes mistress," said Power Girl.
Mary quickly removed her black costume and joined the coupling already in progress. Billy's cock was already stiff, so Mary mounted herself on top of her brother and let it slide into her cunt. Mary panted loudly as she thrust her hips forward. Mary opened her eyes and slid her gaze down Power Girl's naked body as the voluptuous beauty rubbed her cunt in Billy's face.
"Kiss me you fucking slut," Mary demanded harshly as she squeezed Power Girl's buxom left breast.
Karen opened her mouth obediently and leaned forward so Mary could suck on her hot lips. Mary probed Karen's warm throat with her tongue as she milked the submissive heroine's tits. Karen shivered from the bombardment of pleasure from the two siblings. She felt Billy's agile tongue slither up and down her pussy and Mary's attentions on her mouth and breasts. Karen kept her eyes shut as she humped Billy's face and extended her tongue to entwine with the tongue of her mistress. The two buxom heroines fondled and kissed as Billy drove both of them closer to climax. Billy thrust upwards into Mary's pussy as the bucking mistress leaned back and allowed Karen to suck on her tits.
Billy slapped Karen's voluptuous buttocks and caressed the firm curves of her luscious ass. He spread her cheeks apart as he intensified his oral affections on her crotch. Karen groaned huskily through her mouthful of Mary's breast as she ground her hips harder against Billy's face. Mary's bounced erotically on her brother's cock as she buried her hands in her thick, sweaty tresses. Both heroines panted louder and kissed each other harshly with gasping breaths. Billy growled beneath Karen's ass and thrust his hips with all his might before he climaxed inside Mary's womb. Mary shuddered in bliss as her vagina clenched around her brother's ejaculating pole and milked every drop of his discharge. Karen gasped as she showered Billy's ecstatic face with cunt honey. Mary and Karen held each others panting, sweaty bodies as their climaxes subsided.
***
Mistress Mary landed on the roof of the building where she usually met Eclipso. The pale-skinned woman stood with her arms crossed and her head shook from side to side in disapproval, but her smile betrayed her amusement.
"I'm so sorry I'm late mistress! I...", Mary stammered as she approached Eclipso.
"It's alright Mary, remember I am always watching you. And seeing you and that power slut fuck your brother at the same time made me so hot," said Eclipso.
"What are you going to teach me tonight?"
"I want to take you somewhere," said Eclipso as she led Mary by the hand. Mary blinked and suddenly the bright lights of the city were replaced by the flashing strobes of a nightclub. The ambient city noises were replaced by throbbing hardcore dance music. The cool night air was suddenly the warm and humid and reeked of perspiration and sex.
Mary almost fell over from the simultaneous assault on her senses. She leaned against Eclipso as she comprehended her new surroundings. They were at the top of a staircase which led into an enormous, dark building. The floor was packed with people collected into one writhing mass. The patrons were dressed in various black costumes when they wore anything at all. Men and women of all sizes and shapes fornicated with beastial enthusiasm and stamina. Some of them were inches away from Mary as they climaxed within the arms of their lovers or within elaborate bondage. Mary felt her nipples tingle and her pussy grow moist. Streaks of honey began to flow down her trembling legs and she licked her lips as she ached to join the raging orgy in front of her.