Chapter Text
Alex Danvers wasn't sure what to expect when she received a text out of the blue from Kara. It was a vague message. All it asked from Alex was to come to Kara and Lena's apartment. Alex could have spent weeks theorizing what her sister was plotting, but there was a strong change that the answer was going to surprise her anyway.
As Alex ventured inside, she thought back to the night before. The group had gathered together for a small celebration. Alex smiled as she remembered how Kara and Lena wouldn't leave each other's side. It was almost sickeningly cute, but Kara made it endearing, especially when she had a few too many drinks. She stumbled and slurred her words, but always remained the beacon of adorableness. Eventually, Lena had to call the party to a halt so that she could help Kara to bed. At least today was a Sunday so they didn't have to worry themselves with work for now.
There was a small part of Alex that worried something was wrong and that's why she got the text, but she brushed those troublesome thoughts aside, knowing that if it were serious the text would have been more detailed. Still, that didn't help her curiosity as she stepped through the door, which hadn't been locked and made her way inside.
''Kara? What's going on?'' Alex called.
There was no answer. Now Alex was puzzled. If Kara was home, she surely would have heard her, even without super-hearing. The only thing would be if Kara did hear but elected to not say anything. Alex walked inside, shutting the front door behind her and began a quick search for her sister's whereabouts. Even if Kara wasn't home, she would have expected Lena to welcome her. But, neither of them could be seen.
Before long, Alex could hear something down the hallway. She thought about calling out again, but she opted to listen as the noise was a strange one. It was faint and muffled so Alex had to sneakily move closer. As she moved one step at a time, the noise became more indistinguishable. Eventually, Alex was close enough to be able to tell that it was moaning she was hearing…a woman's moans. Actually, it was two women moaning. Alex froze as she listened to the noise carefully. It was definitely the sound of pleasurable moaning that was coming from a room at the far end of the hallway. It didn't help that Alex could also hear the sound of skin slapping together and a bed creaking.
Alex shook her head, trying to shush away any naughty thoughts. Surely Kara and Lena weren't doing it right now? They knew Alex would be coming over. They were the ones who invited her. Why would they get it on now? Alex couldn't believe it. But, there was no denying the noise coming from the bedroom, especially when she heard a moan of ecstasy soon afterwards. The only other option Alex could think of was that two women broke into the apartment to do the dirty deed on Kara and Lena's bed. However, Alex knew that wasn't the case.
She thought about turning around and leaving. But, something compelled her to stay. Despite the almost certain confirmation that her sister and partner were having sex, Alex had to be sure. She snuck as quietly as she could to the frame of the bedroom door and peered her head around the corner.
Her eyes widened and her jaw dropped at the sight.
Kara and Lena were naked. Very naked. Kara was lying on the bed, thrusting her hips upwards and pounding her cock into Lena as the Luthor rode the superhero cowgirl-style. Lena's glorious figure was drenched with sweat as she bounced up and down on her lover, trying to match the upward motions of Kara's powerful pounding. Kara's hands were groping Lena's ass, massaging it gently as one of Kara's fingers circled Lena's rear entrance. The Kryptonian's massive balls swung up, hitting Lena's ass each time she rammed the full length of her cock up Lena's gushing pussy.
Alex stood by the door and stared in disbelief as she watched the scene play out in front of her. She couldn't tear her eyes away from her sister's cock disappearing and then reappearing as Lena's juices soaked the thick shaft. If Alex said there was a debate and turning to leave, that would be a lie. While it would have been the responsible thing to do, she wanted nothing more to stay and watch without them noticing. There was even a small voice inside that urged her to join, but she pushed that away, knowing that would never happen.
Suddenly, she realized that Lena was looking over her shoulder towards the door. When their eyes met, Alex's body jolted and she tried to formulate a decent apology. But, she stopped going through with that strategy when Lena surprised her by smiling gleefully.
Lena slowed her bouncing and leaned down closer to Kara. ''Look who's finally here.''
As Lena continued to give Alex a sultry grin, Kara lifted her head up and spotted Alex watching them. ''Oh, hey sis.'' She smiled bashfully.
''Hi?'' Alex waved awkwardly, unsure what to say or do in this situation. ''If this is a bad time, I can come back later.''
''Actually, you're right on time.'' Lena said, tilting her head and gesturing for Alex to come forward. ''Don't be shy. We've been expecting you.''
''Uh…yeah…'' Alex stammered. She slowly walked closer until she was standing at the side of the bed. Kara was still on her back with Lena sitting on her cock. ''I got your text and the door was open, so…''
Lena fixed a seductive gaze on Alex that left her feeling paralyzed. ''You owe your sister an apology.''
''I what now?''
Kara's face was burning a bright shade of red. ''I'm sorry. I didn't mean to say anything. But, you know I had a few drinks last night, it just slipped out.''
''What slipped out?'' Alex asked. Her eyes flickered back and forth between Kara and Lena.
Lena then reached out to grab a fistful of Alex's shirt and pulled her closer to the bed until her knees hit the side. Alex was standing so close to them that she could feel the heat radiating off of them. The smell of their love-making made her stomach flutter. Her eyes wandered all over their bodies, including Kara's very toned and muscular form. She couldn't help herself from eyeing her sister.
Lena smirked at Alex. ''I'm sure that you've thought about bringing up the topic with Kara, but you didn't want to corrupt your sweet and innocent sister with such thoughts. With her ears, she can hear a lot of things living with you, including those times where you needed to ride the pillow.''
Alex felt the air leave her lungs as she finally understood what Lena was referring to. She knew there was no way that with Kara's hearing her sister wouldn't have heard Alex masturbating growing up. But, she never thought about confronting Kara with it. It always seemed like something to be left private.
''How did that topic get brought up?'' Alex asked, turning to Kara.
Kara looked like a puppy that was about to be scolded for doing something it shouldn't. ''Like I said, I had a few drinks and we were actually talking about me…''
While Alex was trying to put the pieces together, Lena was beginning to grow impatient. It didn't help that she could still feel her pussy wrapped around Kara's massive length buried inside of her. She rolled her hips a little, wanting to get one last feel of being completely filled before she lifted herself up and lay on Kara's side away from Alex. In doing so, Kara's cock was now standing erect in full view of everyone in the room. Alex's eyes were drawn to the length, mesmerized by the size. It was easily in the double digits in terms of length and the girth was more than a handful. Alex licked her lips without really thinking as she stared at the shaft which was drenched with Lena's juices.
''You left Kara hanging while growing up,'' Lena said. ''There were so many nights where she could hear you, and all she had to ease the tension was her own hand, despite the fact she wanted so much more.''
''Like?'' Alex whispered, not wanting to jump to conclusions.
Kara gulped. ''Like your hand.''
''Or mouth,'' Lena said. ''Or pussy, or…maybe from behind? She wouldn't have been picky.''
The thought of Kara's cock being inside of her in such a way almost caused Alex's legs to buckle. She felt something stir inside of her, flowing down between her legs and making her squirm as she tried not to show her want. ''Kara…''
''I know this is weird,'' Kara said. ''And this is a lot to take in. The idea seemed good last night when I was tipsy. If you want, you can still pretend I'm drunk and leave and we'll never speak of this again.''
''Or,'' Lena raised a finger and then pointed it towards Kara's penis. ''You can see what you've been missing out on all these years. Trust me when I say it's worth the wait.''
Alex quickly thought about the offer. It would be the morally right thing to do. However, the longer she stared at the two of them lying in bed together waiting for her, the more she was drawn into joining them. She never would have dreamed about doing anything like this with Kara, let alone with Kara and Lena Luthor. Plus, how could she say no to Kara's sweet face? It would be a morally incomprehensible thing to upset her sister like that. And she had to admit that those times in her teens where she would masturbate, many of those times she had pictured Kara in them.
''Kara…'' Alex said in a husky as she leaned down and crawled onto the bed, bringing her face closer to her sister's. ''Allow me to apologize to you, face to face.''
Kara smiled and closed her eyes, just as Alex did and their lips pressed together. Lena happily watched on as the Danvers sisters passionately kissed. Any sign of hesitation was thrown out of the window as they kept kissing, their tongues brushed together to taste each other. Kara's tongue slid past Alex's parted lips and explored her mouth. Alex moaned with delight before pulling away for some air.
''I want to taste you.'' Alex whispered.
''Please.'' Kara moaned.
Alex glanced up at Lena, feeling herself grow warm as the Luthor watched her move her head down until she was right above Kara's cock. She eyed the shaft and then sealed her lips around the head. She bobbed her head up and down on the tip, trying to go lower as she took more and more. Her mouth was stretched because of the immense girth. She could barely fit it in her mouth as she sucked harder and faster. She wondered how Lena could do this on a daily basis.
Kara's moaned were muffled as Lena started to kiss her hungrily, though she never took her eyes away from Alex as she watched the hot blowjob. ''Your sister looks so good sucking your dick.'' Lena moaned, cupping Kara's cheek and kissing her.
As Kara moaned in agreement, her hands moved down to fumble with Alex's clothes, wanting to tear them off. While she could have done that easily, she was sure that Alex wouldn't appreciate haven her clothes ripped apart. Moving as quickly as she could, Alex released Kara's cock from her mouth and sat up so that she could remove her top and toss it across the room. Kara's eyes were drawn to Alex's exposed chest, her breasts bouncing into view. While they were smaller than Lena's, they were just as beautiful in her eyes, and Lena had to agree. Their hands reached forward to cup Alex's breasts. Alex moaned and pushed her chest forward, letting the two women palm and grope her boobs, pulling on the nipples.
''Show me how you do it.'' Alex said to Lena, lowering her head back down to Kara's cock and licking the shaft.
''With pleasure.'' Lena smirked. She placed her finger under Alex's chin and pulled her forward so that they could kiss.
''Wow.'' Kara moaned as she watched her partner and her sister make out right in front of her.
Lena's hand grabbed Kara's cock and began to pump it as Lena and Alex's tongues danced together for some time. After the two of them had enjoyed their kiss, Lena dived down and began to suck on the shaft, taking more than half the length into her mouth. Her eyes rolled into the back of her head as the cock fucked her throat over and over again, causing her go gag. Alex watched in amazement as Lena kept sucking. At the same time, she reached down and started to massage her sister's balls, playing with them and driving Kara wild with lust. After Lena pulled back, she licked one side of the shaft while Alex tended to the other. They worked in unison, bobbing their heads up and down, slurping and sucking on Kara's cock like they were fighting over their last meal. Kara thrust her hips up, feeling their lips and tongues coating her cock from the tip down to the base. She gasped when Alex and Lena then began to suck on her balls, taking each on their mouth and swirling their tongues around.
''This is amazing!'' Kara cried out as Alex now began to deepthroat her while Lena worked on sucking and licking her balls.
Alex choked on the enormous cock. She was beginning to feel dizzy as she let her sister fuck her mouth without mercy, but she didn't want to stop. If Lena could do it, she saw no reason why she wouldn't be up to the task. She felt Lena's hand then rest on the back of her head, forcing her to take more of Kara's cock. Eventually, she had the whole length ramming down her throat. Her nose was pressed against Kara's stomach.
''Fuck,'' Lena grinned as she dragged her tongue up and down Kara's big balls. ''I love watching you suck Kara's dick!''
Alex brought her head away to quickly get some air before she joined Lena to suck on Kara's balls. When their tongues touched, the two of them started to kiss each other.
''Oh Rao, this is so good!'' Kara moaned. She had to be careful not to break the bed beneath them as she felt their lips on her and heard their lustful moans. ''You know, it's not fair you two get left out.''
Alex stared up at her sister. ''I'm more than happy to stay here.'' To prove her point, she peppered kisses all the way up the shaft of Kara's cock before sucking on the head again.
Lena chucked and kissed Alex's shoulder to get her attention. ''What I believe your sister means is that she wants to taste you too.''
Alex stopped sucking and held her breath. It was all happening so fast, but she was along for the ride and didn't want to stop. She stood up and quickly fumbled on the buckle of her jeans to try and take them off. Her nerves were getting the better of her as her hands trembled and couldn't get a proper grip.
There was a strong gust of wind that almost knocked Alex off her feet and before she could react, Kara was standing right behind her with one hand on Alex's belt. ''Allow me.'' Kara whispered in Alex's ear, sucking on her earlobe. With one swift flick of her wrist, Kara tore the belt off and watched Alex's jeans fall to her ankles. Alex looked down and then saw Kara pull her panties down her slender legs too, leaving her standing completely naked.
Kara then placed her hands on Alex and Lena's backs and pushed them onto the bed in front of them. Alex and Lena were on their hands and knees, looking over their shoulders as they watched Kara kneel down and bury her head between Alex's legs. Alex cried out in pleasure as she felt her sister's tongue licking and sucking on her soaked pussy. Her juices dribbled down the side of Kara's mouth as she probed her entrance with her tongue, lapping up her wetness like there was no tomorrow. Alex nearly lost her balance under the incredible pleasure she was experiencing, not helped by Lena tugging on her short hair and pulling, eliciting more lustful moans.
Lena then let out a gasp as Kara shifted her attention to her next, giving her the same oral pleasure she was giving her sister. Lena bucked her hips back, pressing her gushing pussy against Kara's face and wiggling her ass. Panting heavily, Alex watched Lena's face contort with pleasure as Kara ate her out. Then, it was her turn as Kara returned to licking her pussy. Every minute or so, Kara would move her head between Alex and Lena, fucking their pussies with her tongue and making sure she gave each of them equal treatment.
''I'm going to cum!'' Alex cried out, desperate to feel her sister's tongue on her as she climaxed.
Kara smiled as she licked her sister and then teased her pussy with her fingers. Alex's mouth opened as she tried to gasp, but she was left breathless as she felt her sister's fingers thrust in and then pull out repeatedly. She rode her sister's tongue and fingers all the way to a blissful orgasm. She gripped the bedsheets and screamed into the mattress. Lena came down to kiss the back of her neck as she squirted all over Kara's face. She wanted to apologize, but she couldn't find any words as she came hard.
''Oh my…'' Alex sighed, wiping the sweat from her forehead. She looked back and saw Kara looking down at her with a smile, her face drenched in the aftermath of her climax. Alex laughed bashfully. ''I'm sorry. I don't usually do that.''
Kara giggled and licked her lips. ''Glad to see I can make you buck the trend.''
Beside them, Lena reached down and gripped Kara's cock, positioning it towards Alex's pussy. Instinctively, Alex lifted her behind higher so that her sister's cock could be lined up to her entrance, but Alex stared at Lena in confusion. ''Isn't it your turn?''
''Hmm, later.'' Lena teased.
One inch at a time, Kara slowly thrust her hips forward and drove her cock inside of her sister's pussy. Alex's mouth was agape as she tried to get used to the size and girth. Her whole body felt ignited. Kara's cock seemed to be never ending as it reached deeper and deeper until finally Alex could feel Kara's body hitting hers. She was surprised that she was able to take her sister's cock in one stroke. At this stage, she was already drenched, but this was only the beginning.
''I'm going to start, okay?'' Kara said, easing Alex into things. Alex nodded, feeling Kara slowly and gently pull back, leaving half of her length inside. Kara pushed forward again and Alex nearly fell forward. She held on as best as she could, feeling her sister's thrust start to become harder and faster.
Lena moved her just above Alex's ass cheeks, watching Kara's cock emerge and re-emerge. ''Let me help.''
''What do you…oh!'' Alex gasped when she felt Lena's tongue tease her asshole. The sensation was new, but it felt incredible.
Alex began to buck her hips to the time of Kara's thrusts. Kara's cock and Lena's tongue fucked Alex's holes, leaving her a quivering mess as her sister started to pound into her harder than before. Kara's hands gripped tightly on Alex's waist, driving into her like a lustful animal. Lena enjoyed rimming Alex's ass for some time before she then grabbed Kara's cock to pull it out and suck on it, tasting Alex's juices dripping down the shaft. Alex whimpered, feeling empty without her sister's cock inside of her. The feeling didn't last for long as Lena helped push Kara's cock back inside of Alex's pussy and Lena returned to licking Alex's rear entrance.
''This is amazing!'' Alex moaned, backing into Kara over and over again. It reached a point where Kara stopped thrusting and Alex resorted to grinding so that the feeling of being fucked by her superhero sister could continue. Her face turned red as she felt another orgasm on the horizon.
Sensing that her sister was close as her pussy clenched around her shaft, Kara leaned forward and slammed into Alex with more strength, pushing her down on the bed. Lena had to move out of the way to give them space, but she was more than happy to watch as Kara fucked Alex, shaking the bed and making Alex scream at the top of her lungs as she rode out her climax on Kara's cock. Kara kept slamming her body down into Alex, slowly as her sister came down from her high.
Kara lifted herself off of Alex and stroked her back, causing her sister to shiver. ''How are you doing?''
Alex was panting, but she had a wide smile plastered on her face. ''I feel like I'm flying.''
Kara hummed. ''It's not quite the same, but I can understand the similarities.'' She then turned her head towards Lena and gave her partner a confident smirk, along with a quick wiggle of her eyebrows.
Lena laughed at the adorable woman, but then held up her finger to halt Kara before she got closer. ''Let's just change position first.''
Curious to see what Lena had planned, Kara and Alex watched as Lena rested on her side on the bed and then gestured for Alex to spin around. Once Alex did as instructed so that she was laying with her top near Lena's bottom and vice-versa, Lena wrapped her arms around Alex's waist and then pulled her closer so that her face was nestled between the agent's legs. Alex moaned as she felt Lena slowly lick up and down her pussy, making little circles with the tip. Wanting to return the favor, Alex moved her head forward and began to go down on Lena too. Kara watched on as the two women got comfortable in their 69 position.
''Kara,'' Lena called out between licking Alex. ''While Alex is tending the front, I'm expecting you to take care of the rear.''
Alex's eyes widened. Surely Kara wasn't going to actually fuck Lena's ass? Her cock was large enough to barely fit elsewhere. Yet, Alex slowed her sucking so that she could glance up and see Kara move to the edge of the bed and behind Lena's ass. She brushed the tip of her cock against Lena's ass, wetting it and slowly sliding inside. Lena shuddered against Alex's body as Kara rammed her cock all the way inside. Alex was left gobsmacked. Kara remained inside for a few seconds, and Alex saw a chance to quickly shuffle slightly so that she could lick and suck on her sister's balls which were close enough for her to reach.
''That's it!'' Lena moaned as Kara started to move in and out. ''Fuck my ass with your big cock, Supergirl!''
Amused to hear Lena use Kara's alter-ego as a motivator, Alex then looked up at Kara and saw how aroused her sister was. Kara was pounding into Lena, her body slammed against Lena's ass with enough force to rattle the bed and make the two women shake. Alex lifted her fingers to Lena's pussy, coating her fingers with Lena's juices before thrusting them inside. Lena gasped loudly as the Danvers sisters fucked her together. She brought her mouth to Alex's pussy, sucking and supressing her cries of pleasure. Her moans brushing against Alex's lower lips made her squirm.
''Go on, Supergirl!'' Alex said. With her free hand, she grabbed Kara's cock and pulled it out so that she could then suck on it just as Lena had done when Kara was fucking her earlier. Alex bobbed her head up and down, enjoying the taste of hers and Lena's juices on her sister's shaft. ''Fuck her hard, like you fucked me!''
Kara winked and then thrust her cock into Alex's mouth hard and fast. After fucking her sister's throat a little bit more, she returned to driving her cock in and out of Lena's ass. Kara's back arched and Alex could see her fingers digging into Lena's plump ass cheeks.
''You're close!'' Alex said with a smile. ''I'm surprised you held on for so long.''
''Plenty of stamina.'' Kara admitted proudly. ''You'll see that I have a lot in the tank.''
''I can't wait to see!'' Alex purred.
Lena wanted to give the sisters a witty remark, but with Kara's cock fucking her ass and Alex's fingers thrusting in and out of her pussy, she was an incoherent mess. She tried to hold on for as long as possible so that she could wait for Kara like always, but with the two of them on her like this, she couldn't hold back. She sprayed her juices all over Alex's face. In response, Alex opened her mouth and sucked on Lena's leaking pussy, wanting to taste as much as she could.
Seeing Lena squirt all over her sister's face proved to be the catalyst for Kara's climax. ''I'm cumming!''
Kara released a cute moan, jerked her hips forward once more and then exploded deep within Lena's ass. Alex had the best view possible. She saw Kara's seed leaking out from Lena's ass. Kara pumped load after load, filling Lena to the brim before she then pulled back. There was enough left over for a few thick threads to jet onto Alex's face. Alex opened her mouth wide, open to catch some. She lapped up the load that landed perfectly on her tongue. The sweet and salty taste of Kara and Lena together warmed her mouth.
''Holy fuck!'' Lena gasped, resting on Alex's thigh.
While Kara could have kept going, she could see that Alex and Lena were fatigued and breathless. She joined them on the bed, laying together in a tangled mess of sweaty, cum-soaked bodies. As she stroked her sister's hair, she laughed. ''Did you pick up on Lena's accent?''
Alex laughed. ''Yeah, Lena, do you have a bit of Irish in you?''
''Perhaps,'' Lena sighed with delight, moving herself so that she was snuggled between the sisters. ''I do know that I have lot of Kryptonian in me.''
The three of them shared a laugh together as they hugged each other and relaxed. Alex stared up at the ceiling, trying to catch her breath. This may have been a long time coming, but it was most certainly worth the wait.
XXX
GOOD DAY MY SWEET SUPERSTARS! I HOPE THAT YOU ARE ALL STAYING SAFE AND SUPER. I HAVE BEEN WAITING SO LONG TO FINALLY DO A STORY WITH SUPERCORP, AND I COULDN'T HELP MYSELF, I ALSO HAD TO ADD OUR CHAOTICALLY GAY MESS OF AN AGENT INTO THE MIX. DON'T BE AFRAID TO LEAVE A COMMENT TELLING ME WHAT YOU THOUGHT OF THIS STORY. I REALLY HOPE THAT YOU LIKED IT.
I MIGHT COME BACK WITH ANOTHER SUPERGIRL STORY DEPENDING ON HOW THINGS IN THE SERIES GO. I AM WRITING FOR OTHER FANDOMS IF YOU WANT TO CHECK THEM OUT, I HAVE A WHOLE LIST ON MY PROFILE. I ALSO HAVE A POLL ON MY FANFICDOTNET PROFILE TO VOTE ON WHICH FULL-LENGTH STORY YOU'D LIKE TO SEE ME WRITE FOR IN THE FUTURE. IT'S A CHOICE BETWEEN GAME OF THRONES, RWBY OR FROZEN. VOTE AWAY OR GET YOUR FRIENDS TO VOTE IF THEY'RE MORE FAMILIAR.
KEEP BEING AMAZING AND STAY SAFE. TA-TA FOR NOW.