I don't own these characters; DC/the CW does.

A/N: this chapter is all sex all the time.

2: Seconds

Alex rose to her feet from the dinner table and Lena tried. She really did, but her knees were jelly and her legs were worthless. Did just listening to her talk really do this to me? Lena should be surprised, but it made sense. Intelligence was a huge turn on, all the time, and again, Alex was one of the smartest people she knew, even if she did not admit it.

A hand out did not help, but Lena took it just the same. The feel of Alex skin on hers, just their hands touching, made Lena's stomach erupt and her nerves craved the rest of Alex, but she still could not stand up. Her legs refused, too weak from the energy popping around them. Then, all of a sudden, it did not matter. Alex scooped her up, bridal-style. Lena yelped and wrapped her arms around Alex's neck.

"I guess I never realized how strong you are," Lena said as she leaned into Alex's chest. Her nostrils flared as she took in Alex's scent and every inch of her was now aflame. Alex was like smoke and earth and Lena wanted to bend over for her right now. Stop thinking like some omega stereotype. The thought was forgotten as soon as it was over.

"I'm getting the feeling you never realized a lot about me. Now, let's take care of you before your heat turns painful," Alex replied. It would be just that if she remained in Alex's arms much longer.

Lena whimpered. She needed a bed now, which Alex had to know because she was on the move. Alex had a vague idea of where Lena's bedroom was, but had never been there, even though it was Kara's bedroom as well. She knew it was upstairs. She just did not know it was upstairs, as in the entire floor was the bedroom. She climbed the stairs with no trouble and then gasped when she hit the landing.

"I'm sorry. I thought there were other rooms up here," Alex said.

"It doesn't matter." Lena had to have Alex as soon as possible or she would peel out of her skin. No, no, no. This isn't how you want this. Stop being such a needy omega and focus. While she needed this, she did not need this in the bed she shared with Kara. She had been vaguely aware of this until a few moments ago.

"No, it does. You prepared a room for this." Alex said this with certainty, like she knew Lena that well.

She had. Lena had not wanted Alex in what amounted to her marital bed. Before all of this started, she did not want Alex in the apartment really. But, right now, she wanted to claw out of her own skin and get on her hands and knees for this alpha who cradled her close as if she was precious. Just like Kara does.

"Downstairs, down the hall. Now," Lena said, needing to regain some control over herself. She was not some omega who would just present herself to any alpha, especially when she had a perfect mate.

Alex all but ran back downstairs, carrying Lena like it was nothing. With each step, Lena's dress rubbed against her, she felt the pressure of Alex's arms around her, and she wanted to tear out of her clothes as well as tear Alex out of hers for skin on glorious skin contact. If this took much longer, she was certain the heat from her skin would burn the dress away and then singe Alex.

Lena hissed. "Alex, please."

Alex found the room. Lena was never more thankful she prepared in advance because she could not think of anything, mind foggy with lust. All she could think about was this alpha and what Alex would do to her. Oh, give me a knot! Her body gushed at the thought. It had been so long. And, I want it, I want it, I want it.

-8-8-8-8-

Alex could barely think and sweat already had her shirt plastered to her body. Lena blasted pheromones all over the place and it was driving her crazy. Alex could hardly see straight and her body responded in a way that was not very surprising. She was not sure how she got Lena to the guest bedroom or managed to place her on the queen-sized bed without shredding her clothes at the same time. She stepped back once Lena was secure, not sure what to do.

If this was a normal situation and Alex was a heat-partner, she would kiss and undress the omega, knowing it was soothing during a heat to feel affection and contact. But, this was not just an omega. This was Lena, not just Kara's bond-mate, but just Lena. Lena was not her biggest fan and had already waited until the last minute to even ask her to do this.

"Are there any limits you want to set?" Alex asked. They probably should have had this conversation earlier, before Lena was head-first into her heat, but now was better than never.

Lena scowled. "Limits?" she said it like a dirty word.

"Like no kissing? No—" Alex yelped as Lena grabbed her by her lapels and yanked her down. She was pretty strong in her own right.

Lena stared her down like a predator on prey. "You better kiss me and touch me and fuck me like you mean it. You're here as a stand-in for Kara. So, I expect my heat to be handled as if she was here, with one exception…" Lena's eyes fell to Alex's crotch and she licked her lips. "You better fucking knot me."

Alex gulped. "Yes, ma'am." Why are all my omegas so demanding? Wait, no. Not your omega.

Before Alex could have any other weird thoughts, Lena pulled her in for a kiss. It was all heat and electricity. For a moment, Alex's brain was overwhelmed and short circuited, so she could not move. And then her nose picked up the scent of heat and instead of clogging her brain like earlier, it jumped started it. A worried whimper escaped Lena just before Alex kissed back.

The whimper became a moan as Alex slid her tongue past Lena's painted lips and lapped at the inside of her mouth. Lena's tongue wasted no time greeting hers. The caress was urgent, full of fire and passion. Alex got the message loud and clear.

Alex reached around Lena and unzipped her dress. Lena pulled away, panting, as soon as the zipper was down. She scrambled out of the dress, kicking her shoes off as soon as the dress was at her ankles. She took off her underwear so quickly, Alex did not even get a chance to see them on her, but that did not matter.

Alex's brain shorted out again as she took in the sight of a nude Lena. She had seen many bodies in her life, most in a professional medical setting, but enough to know she was looking at sheer perfection. Lena did not give her long to look, moving back on the bed and beckoning her with one crooked finger.

Alex was about to follow, but a hand up stopped her. Her brow wrinkled. What did I do wrong already? She regretted not having a real drink before she came over. She would have at least been relaxed and gone with the flow.

"Strip for me, alpha," Lena said.

Alex growled, but yanked her suit jacket off with enough force to rip it. She popped open the buttons of her shirt, but Lena was impatient, crawling back to her and kissing her, like that would help the situation. Alex focused on kissing, her tongue against Lena's, and forgot all about her shirt. It was not until she felt it came out of her slacks that she realized Lena was undressing her.

Maggie used to like to undress Alex. It was always nice, but she did not want to think about Maggie right now. She grabbed Lena's wrists and pushed her hands away. Lena broke the kiss with a whimper, gazing up at her like she was a criminal.

"I got it," Alex said in a strong tone.

"You're taking too long," Lena replied with a pout.

Alex chuckled and gave Lena a quick peck on the lips. "I'll be quick. Promise." If she could get her damn fingers to work. She just wanted to make sure she hung onto the condoms in her pocket. The last thing she needed was to get too wrapped up in what was happening and go inside Lena raw. Geez, I don't even want to think of what could happen after that. Yet, the idea of being inside Lena with nothing between them made her throb. Calm down, you filthy bastard. Lena's Kara bond-mate. That did nothing to her inner alpha or her rock hard erection.

"Still taking too long," Lena said, but now her hand was between her legs.

Alex growled. "Stop." How dare Lena do that as if she could not satisfy her! She ripped out of her shirt, ignoring the sound of torn fabric. The shirt was on the floor and Lena's eyes were on her, but she was still rubbing herself. Alex glared at her and grabbed her wrist again. "I said stop."

"If you want me to stop, then do something about it, alpha." A challenging glint sparked in Lena's eyes.

Alex yanked off her black sports bra and pulled the condoms out of her pockets, two rolls, before taking off her pants. Lena's attention went to the condoms and she curled her lip.

Alex scoffed. "You'll thank me later."

"I'll thank you when you finally start doing what you promised," Lena replied in a clipped tone.

Alex got on the bed and put the condoms on the nightstand before kissing Lena again. Lena cooed against her lips and her hand went to bulge in Alex's boxers. Alex groaned as Lena massaged her and sent fuzzy pleasure jolting through her.

"You want my knot?" Alex asked with a smirk.

"You know I do," Lena replied, panting. "So thick. I want to see."

Alex attacked Lena's neck, kissing her creamy skin. She could feel Lena's pulse against her lips, drumming against her. Lena whined and clutched her a little tighter, just enough for it to hurt. Alex nipped her throat as a warning.

"Just fuck me already," Lena said.

"Soon. I have to get you ready," Alex replied, moving her hand between Lena's legs.

"I don't—" Lena's words dissolved into a deep coo and her eyes rolled into the back of her head as Alex stroked her soaked passion. She slid two fingers through Lena, who pumped her hips, trying to get more pressure. Lena whined when Alex kept her pace.

"Alex!" Lena snarled.

"So impatient. You told me to treat you like Kara would," Alex replied. Experience taught Alex that Kara was all about foreplay, even when it would not be appreciated, so this was something Lena was used to. Alex fought the urge to go down on Lena, wanting to pleasure her in all ways, but that seemed too personal, too intimate.

"Just fuck me already!" Lena's eyes burned with fury and fervor.

"I'll get to it already. I just want to make sure you're ready."

"I'm in the middle of my fucking heat! Fuck me already, you useless alpha."

Alex snickered and dragged her teeth down Lena's neck, making her moan loudly. She even tilted her head, silently requesting more. For all of her complaining, Lena opened her legs more, welcoming Alex as she moved closer. Alex kissed her way down to Lena's breasts and ran her tongue across one erect nipple and pinched the other. Lena groaned and grabbed Alex's hair at the nape of her neck. Her grip was tight, but she did not pull Alex away.

"Kara," Lena said and everything paused. Tension cut through the lust.

"Guess I'm doing a good job?" Alex asked, trying to ignore the twist in her guts. It should be a good thing that Lena called Kara's name. It meant Alex was giving Lena what she wanted, to be fucked like Kara would, but it brought up old hurt. Alex was never good enough. Alex would always be second.

Lena turned away, cheeks flush, possibly from their actions, but also possibly from embarrassment. "Just fuck me already."

Alex usually liked to give her partner an orgasm with her mouth or fingers before using her dick, as she always felt there was no guarantee she would bring them to orgasm with thick penetration. But, Lena did ask and she did not seem comfortable with calling the wrong name. You're not as okay with it as you're acting either. Alex ignored her stupid inner alpha and sat up to get out of her boxers. Before she got to it, Lena grabbed the waistband and yanked Alex's underwear down, causing her length to spring forth.

Lena's eyes went immediately to Alex's dick. Alex resisted the urge to cover herself. She was not an alpha who often got complimented on her cock. She was average, which made her larger than most beta males. A few veins ran down her length that should enhance her partner's pleasure, and, yes, she never got complaints from Maggie or Kelly, but Alex had issues, especially when she was about to be compared to Kara.

While Kara was not an alpha, she could sate Lena's heat because Lena actually designed the perfect fucking strap-on for Kara to use. How the hell was Alex supposed to match up against a tool Lena designed for herself? This was so stupid.

"God, Alex, you're beautiful," Lena said and she reached out, taking a hold of Alex's length. She pumped her hand up and down.

Alex whimpered from the feel and also the words. The only person who ever said that about her was Maggie and she ruined things with Maggie. Don't think about Maggie. Think about Lena. Sexy Lena who is giving you a fucking hand job right now. Lena, who you're about to make scream.

"Shit, Lena," Alex moaned.

"Put that in me right now and fuck me."

Alex could only nod. She grabbed a condom and wasted no time putting it on while Lena was back to playing with herself. Somehow, Lena managed to push out more pheromones and her scent, her desire flooded the room. Alex was the one whimpering now, but that did not last long. Condom secure, she crawled over to Lena, attacking her lips in a fierce kiss as she moved Lena's hand and replaced it with her own. Lena was so wet, so warm, spilling all over her hand.

"Do I have to tell you again?" Lena hissed in her ear.

Alex growled and lined herself up with Lena, pushing inside with no warning. Lena let out a long, loud moan, throwing her head back and spreading her legs to take more of Alex inside. Alex wasted no time pumping her hips, setting a hard, heavy rhythm. Lena clutched her shoulders, digging in, and wrapped her legs around Alex's waist, pulling her in deeper.

The skin contact was perfection and Alex moaned into Lena's ear. Lena arched against her, pressing their breasts together. Alex grunted into Lena's neck as she sank deeper into Lena, who cried out. Her voice carried over the sound of their skin slapping together.

"Fuck, you feel good," Alex muttered into Lena's throat. She kissed the warm flesh there.

"You, too. So fucking good," Lena replied, panting and clutching at Alex's back. There would be marks already. "Fuck, fuck, fuck."

Alex rolled her hips in time with Lena's swearing, which did it for Lena. She arched up into Alex again, kissing Alex's shoulder and neck. She gripped Alex, pulsed around her.

"You ready?" Alex asked.

Lena's breath hitched and then keened as she rippled around Alex. She felt glorious and Alex roared into her neck, unable to hold back now that Lena had climaxed. Her knot followed and pressed against Lena, who scratched down her back.

"Yes! Give me your damn knot!" Lena ordered.

"Fucking take it," Alex replied as she pushed her knot home. She was welcomed with a howling cry and warm passion. Lena gushed so much, it splashed against Alex's abdomen. It was warm and sticky and wonderful.

"Yes!" Lena sighed and melted against her and the bed.

Alex smiled to herself as Lena closed her eyes, enjoying the aftershocks of ecstasy. Alex gently rocked her hips, moving her knot slightly. It was a little trick she learned back with Maggie. Lena hissed and then cooed without opening her eyes. She grabbed Alex by the nape of the neck.

"Yes, do that!" Lena's hand fisted tightly around the hair at the base of her neck and threw her head back.

Alex sucked at the exposed column of Lena's neck as she continued the simple movement, exploding into the condom. Her body twitched as she drained and she wanted to nip Lena's neck, just for a real taste, but she could not. She could not and would not tempt herself like that. She's not yours to mark. And that was probably for the best. You're just a stand-in, a second. And that was probably for the best, too. She collapsed against Lena, no more to give for the moment.

-8-8-8-8-

Lena was in heaven, laid out on the bed with Alex's weight pressed down on her. Alex's knot was incredible, driving out all the itchy, raw energy of her heat. The little pushes when Alex ground against her, pressing the knot deeper was more than Lena could bear and she was not sure if she would ever stop coming. She did not know where Alex picked that up, but it was incredible and she wanted it every time Alex knotted her now. When the knot went down, all she could think about was how she wanted it again and again.

"Ready for round two?" Lena asked as Alex sat up. Lena's eyes fell immediately to the full condom before Alex removed it. What would it have felt like to have Alex climax inside of her? Her body shuddered at the thought and a fire seared her nerves. I want that. She tried to shake the thought away. That's just the heat talking.

"Yeah." Alex tossed the condom out into the trash bin by the bed.

"Good." Lena purred, flipping onto her stomach and putting her ass in the air. It was meant as a tease, as there was no way in Hell she would submit to anyone except Kara during her heat, but she did not count on how fast Alex truly was.

Alex growled in Lena's ear and filled her hands with Lena's breasts as she pressed herself into Lena's back. It sent a thrill down her spine. The feel of Alex's nipples dragging against Lena's back made Lena purr again. Wet kisses rained down on her neck and shoulders as hands kneaded her breasts just right. She closed her eyes and had flashes of her mate again.

"Hmm… Kara," Lena said with a sigh, trying to pick herself up a little.

A growl in her ear took her out of her thoughts and she found she could not get up, pinned by the body behind her. She had alphas in the past do that to her and she was not in the mood, she could use leverage to get them off, but Alex would not be moved.

"Who is fucking you right now?" Alex asked and then twisted her nipple.

Lena could not help the obscene moan that escaped her lips as her body burned hotter than ever before. What she could help was answering the question. She was vaguely aware she called out Kara's name, but she loved Kara and she loved this. But, the warm, hardening nudge at her backside, so there was no way this was Kara.

"Who's fucking you right now?" Alex pressed her pelvis against Lena's ass and twisted Lena's nipple again.

Lena whimpered, body trembling with need. Soon, it would be impossible to keep herself up. It already felt like everything inside of her was jelly, waiting to be molded by Alex.

Alex growled. "Well, guess since you don't know, I'm not necessary at all." She pulled away.

"Alex, no!" Lena cried. She would not survive if Alex left now. She needed that knot again, and again, and again.

"Oh, so you do know who's fucking you?" Alex stroked her back with a rough hand. It was soothing, putting out the itchy blaze right under Lena's skin as her body craved to be touched.

Lena whimpered. "Alex."

"Yes?" Alex rubbed her back again and she had to hold in a mewl.

"Fuck me…"

"Maybe say please." Alex caressed her the center of her back.

Lena wanted to growl, but that suppressed mewl escaped her. The hand on her back was more than appreciated. She arched and pushed her ass against Alex. Alex's hand slid up her back and to her neck. Lena released another mew.

"Please," Lena said with a whine at the end.

Alex chuckled. "Sure."

Alex continued caressing her neck and she could not stop purring as her body relaxed as best it could during her heat. Alex released her breast, hand wandering Lena's side, to her waist, to her hip. It calmed the fire under her skin. Then, Alex ran her length through Lena's excitement and Lena's bones were ready to fall apart completely. It was almost impossible to stay up as Alex nudged her entrance. She moaned and pushed back, her body quivering as she tried to get Alex inside of her.

"Patience," Alex said.

"Please," Lena said, needing Alex's knot.

Alex stroked her back again as she pushed inside and Lena howled, back arching as she welcomed Alex's length. She wasted no time setting a much more brutal pace than before, as if to punish Lena. Lena cried out as Alex hammered into her in the best of ways, trying to prove she had the stamina to do what Lena demanded earlier. Lena tried to keep herself up, but it was impossible. Alex was too much of a force and Lena's arms gave out immediately and she could not hold herself up. That did not stop Alex, who took hold of her hips and pulled Lena to her with great command.

Something inside of Lena turned into a puddle, and if she had the brainpower to figure it out, she would think it was her inner omega. The way Alex held her up while also keeping such a relentless pace with so much power to it was nothing short of glorious. The way she caressed Lena's back or reached around to squeeze one of her breasts or give a little attention to her clit while slamming into her was enough to make Lena drool. Omegas would pay for this sort of fucking during their heat.

"Who's fucking you, Lena?" Alex nipped at her ear, sending shivers down her spine. The pump of her hips never let up. "Who?"

Lena groaned, unable to form words. It did not help that there was a particular hard, and pleasing, jolt from Alex's hips at the question. There was nothing average about her cock now. Alex wielded herself like a weapon in combat.

"I said who's fucking you?" Alex's hand came around, putting pressure on Lena's throat.

"Alex, Alex, Alex," she had to chant the name, in case it got Alex to do even more. Not that she was sure she could survive more. Incredible did not cover this experience.

"And who's going to knot you?"

Lena groaned. I want it, I want it, I want it. "Alex…" She cried out into the covers as Alex flicked her nipple and licked the shell of her ear.

"You want my knot?" She punctuated the question with a particularly sharp push of her hips.

The very thought made Lena shudder with desire. "Yes…"

"That's good because I'm going to make you take it," Alex said.

That should not have made Lena moan, but it did. Alex's hand wandered between her legs while the other continued to pull her to Alex's thrusts. She sobbed at the caress to her clit along with the drive of Alex's cock. How could she ever have thought this was a bad idea?

Thoughts were the least of her problems as Alex propped her leg up, giving herself more stability. It allowed her to ram into Lena even more, going deeper and harder, and driving Lena out of her mind with pleasure. Lena's body was ready to explode and then Alex hit a particularly sensitive spot inside of her, and the way she jutted her hips, it was like she knew it was there.

Lena screamed into the mattress as Alex gave her just what she wanted and needed. Her body sang, several times, and by the time she felt the knot pressing against her, her throat hurt from crying out. But, this was so perfect and her body flared to accept that wonderful, beautiful knot. She cooed from the pressure and collapsed the moment it slid inside. Alex followed, still pounding away. Lena drooled into the sheets as she climaxed and accepted the knot. I might not survive a couple of days of this, but I'll die happy.

-8-8-8-8-

Alex was not sure what came over her, but for the moment, she was certain Lena would not be using the name "Kara" for the rest of her heat. Not from the way she twitched on Alex's knot and moaned into the bedspread. Alex was satisfied for the moment and shifted, wanting to at least get her weight off of Lena. Lena groaned, grabbed her by the meat of her ass.

"Don't you dare move," Lena said.

"You okay? Not too heavy?" Alex asked. But, then she remembered Kelly used to like her to lie on top of her during her heat. It had something to do with feeling secure.

"Perfect."

Oh, Lena was definitely well fucked for the moment. She would never openly admit Alex did something right. So, Alex remained right where she was and moved just enough for her knot to rock gently inside of Lena. Lena purred.

"How you feeling?" Alex asked, kissing the back of Lena's neck.

"So good. You knot me so good," Lena replied.

That was a face full of cold water for Alex. So, it was not so much that Alex was fucking Lena well, but that she wanted a knot. Alex could be literally any alpha and Lena would not care. Was that how she was with Kara during her heats? Was that why she was always so insistent Kara satisfied her during her heats? Lying to herself and everyone else, even though she really just wanted a knot.

"You know, there are apps where you get a knot whenever you want," Alex said and pumped her hips, just to move her knot, even though it was deflating.

Lena whined. "Don't want any knot."

"Just my knot?" Alex could hardly believe that now that she had a chance to think about it.

Lena purred. "Your knot is nice. Can we do it again?"

"We can do it until you're sated." Alex hated that she felt a little better. Not just an alpha would do. Lena wanted her knot.

"Yes…" Lena moaned into the cover.

Alex did not have much to follow up with there. She was not in the mood to question Lena about her love life with Kara. At least Lena was not lusting after knots while being with Kara. That was enough.

Once Alex's knot went down, she pulled out of Lena and disposed of the condom. Before she could catch her breath, Lena was on her, taking Alex's cock into her mouth. Alex was caught by surprise and groaned as Lena's tongue traced a vein on the side of Alex's dick.

"Fuck, Lena. You don't have to…" It had been a while since anyone did this for Alex, but this was supposed to be for Lena.

Lena sucked on her head and smiled. "I do if I want you to get hard again right away." Her smile became a smirk. "It's what I'm used to, after all."

Alex chuckled, even though she should have felt some kind of way about that. There was no way she could compare to a forever-hard strap-on, but then again, she also could not compare to Supergirl, so no reason to try. She might as well do this the Alex way.

Alex slipped out of Lena's mouth and just as Lena was about to protest, Alex pinned her to the bed. Lena growled, but that turned into a moan as Alex rained down kisses on her pale throat. The attention made Lena arch into her. The feel of Lena's lean body and slick desire pressing into her body was more than enough to affect Alex.

"Fuck me," Lena said it like a plea, like a prayer.

Alex did not need to be asked. Lena felt so good and she wanted nothing more than to make Lena feel good in return. She wanted Lena to be completely satisfied.

Alex kissed down to Lena's breasts and as she took a nipple into her mouth, Lena responded by pinching Alex's nipple. Alex ground down against Lena as a jolt of pleasure shook her. Lena moaned and rocked into her.

"You feel so good against me," Lena said.

Alex wanted to say that was just the heat talking, but decided against it. She focused on Lena's chest, dragging her teeth across the creamy swell before sucking on the pert, pink gem atop it. She had forgotten how much she enjoyed breasts. She could lick, suck, and nibble forever, but Lena had other ideas.

-8-8-8-8-

While Lena did not mind Alex's mouth all over her, she wanted that knot once more. She might never get enough of that knot. It filled her perfectly and the little movements Alex did with it was amazing. She had never had an alpha do such a thing. I need it again!

Lena shifted and rolled their bodies, ending up on top of Alex. While she had enjoyed Alex in control, she did not have the patience for it again. Alex was hard enough and Lena grabbed her shaft, positioning Alex right where she needed her. She sank down on Alex's dick and wasted no time moving on it like it was the only thing keeping her alive.

Alex did not object, hands stroking Lena's torso before she palmed Lena's breasts. Lena arched her back and rolled her hips with more intent. Alex sat up enough to put her mouth back on Lena while Lena clutched Alex's shoulders, moaning as she rode Alex like it was the last thing she could ever do. It felt so good! She picked up speed when Alex moaned, too. The room seemed to fill even more with Alex's alpha musk. She's into this. Somehow, that turned Lena on even more.

Lena wrapped her arms around Alex, holding her close. Alex stroked her back and her sides, leaving warmth just underneath the burning river of pleasure racing through her. Her climax managed to sneak up on her and it was not the explosions of earlier, but more a slow expansion. It seeped through her, spreading to the ends of her hair, bringing every inch of her smooth delight. She shuddered and fell against Alex, who pushed into her while continuing to touch her, extending her orgasm. She buried her face in Alex's neck and released a sob.

"I got you," Alex said, caressing her spine.

Lena mewed and sucked on Alex's neck, which earned a groan from Alex. It should not turn her on, but it did. She wanted more sounds from Alex. She wanted more of Alex and then Alex caressed her clit and all thoughts flew from her mind as she climaxed again. She sobbed again and scratched down Alex's shoulders. Alex trembled, moaning into Lena's ear. She bit Lena's earlobe as her knot slid home. Lena's body gushed at the feeling. I could get used to this.

-8-8-8-8-

Next time: the end.