Set either between seasons 2 and 3, or in early season 3. Mikita try to see how long they can go without sex.

"Please. I can totally go longer without sex than you," Nikita huffed after Michael's accusation. They had just settled into bed for the night, and their conversation had drifted aimlessly from one topic to the next. At some point, Michael made a joke about her always being needier than him when it came to sex. He was mostly joking, but Nikita took great offense to that. She wasn't needy; she just liked to get what she wanted. If anything, he was the needy one. He was always touching and kissing her. She could go longer without any of that than he ever could. Her self-restraint was amazing.

"Remember, I went years without sex," Michael chuckled softly at Nikita's pout. He hadn't expected her to fight so much after his joke. Yeah, he wanted to tease her and get a rise out of her. But he didn't think an argument would come out of it. Especially since it was an argument she was going to lose. He could totally hold out longer than she could. Her self-restraint was nothing compared to his.

"But did you go years without masturbating?" Smirking, Nikita fired back. Michael fell silent. Years without sex was one thing. Years without getting off, that was completely different. Even brooding, stubborn, self-deprecating, keeps himself from happiness because of his pain and guilt, Michael couldn't go that long without masturbating. Only a monk probably could, and he definitely wasn't a monk, "Yeah, that's what I thought."

"Oh, so you did?" Michael instantly questioned. He knew Nikita; he seriously doubted she went years without getting herself off. She might've been stubborn as all hell, yet she couldn't keep herself from that much pleasure. If he couldn't, then so definitely couldn't she.

"I went a really long time," Nikita deflected. Okay, so she didn't go years without any sort of satisfaction. However, she had a fairly good resolve when it came to refraining from sex. If the two were to compete who could go the longest without sex, she'd definitely win. Michael couldn't stay away from her; he'd cave so fast.

Michael couldn't help but laugh. Their conversation definitely took a ridiculous turn. But knowing Nikita, he should've expected that. She always made things fun with her crazy antics. Everything became an adventure with her. And he, of course, always had to join her on the fun, "Just admit it, I can go longer without sex than you."

"I will not. Because I'm gonna prove you wrong," A part of Nikita assumed she was setting herself up for disaster by extending the challenge. However, she was going to stick to her stance. She would never let Michael prove her wrong. Whether in the field or in the bedroom, she always had to be right. Even if what they were arguing about was ridiculous.

"You're gonna not have sex with me? For how long?" Instantly, Michael called bullshit. The couple didn't have sex all the time. They weren't constantly seeking pleasure between the sheets. Yet it was often enough that Michael didn't think Nikita could go long without it. He knew he couldn't. And since they shared the same bed, the temptation to just kiss and fuck would be too powerful to deny.

"For as long as it takes," Nikita refused to give a specific time frame. That kept herself from setting herself up for further disaster. It also made her seem more confident in her decision to challenge him. Unfortunately, Michael could see right through her.

With a smirk, Michael moved across the bed and hovered his body over Nikita's. It would've been so easy for one of them to just grab and kiss the other. Michael thought Nikita was going to do just that, but she gripped the covers to restrain herself. His smirk somehow grew, "I'll be waiting for when you crack."

"You're the one who's gonna crack first," Dusting her lips over Michael's, Nikita teased him and drew him into the competition. Then she turned on her side and completely ignored him. He could only laugh. He collapsed back on the mattress beside her and pulled her into his arms. A laugh bubbled out of her as well. The two spent the rest of the night laughing and talking, until they fell into peaceful sleep in each other's arms.

The competition was honestly forgotten about for a while. The couple was so busy during the day with missions and meetings that they just crashed when they got home. They'd eat, they'd talk, they'd relax together, then they'd just collapse in bed exhausted. Michael and Nikita still kissed and touched each other because they could never refrain from that. But sex wasn't even thought of for at least a week.

Then the next week came. Nikita and Michael had tons of pent up energy and built up stress they needed to release after all those missions. Except, as they moved to bring each other to blissful release, they remembered the challenge they had struck. They weren't going to cave because they had been stressed; though, it was tempting. The two could go more than a week without sex. They could prove that easily, as long as one of them proved they could go even longer than the other.

The next week then became extremely difficult. The couple soon had to stop themselves from simply kissing because even that became too much of a temptation. They struggled not being able to touch the other in just the right spot, hear them moan in pleasure, have them come apart in their hands. Maybe it would've been easier to abstain if they weren't always so close to each other, especially in bed. Michael and Nikita were so close, yet they couldn't touch. After years of constant touching, it was maddening. They were going to go insane.

Unless one of them tempted the other to break first. To break was to admit defeat, and their stubbornness would never allow that. But if they made the other fall, then they could have the satisfaction of winning and sex.

Nikita was much better at tempting Michael than he was her. She wasn't even afraid to tease him at work. It was torture- torture he didn't think he'd be able to survive. After another day of trying to rile one another up, the couple returned home desperate and needy. Neither could hold out any longer. They had to have sex with one another, no question about it. Making and eating dinner just to avoid one another only delayed the problem.

After dinner, Nikita disappeared for a bit. Michael figured she was just washing her face and trying to decompress after a long day. When she finally returned to his side, however, he noticed that she had done more than just wipe off her makeup. Her long hair was down, and she had completely changed out of the jeans and t-shirt she had slipped on after work. She then only wore lacy underpants and a skimpy tanktop. Michael couldn't help but gawk as she walked past. Nikita noticed and smirked.

"Wait. That's cheating," When he was able to think again, Michael called Nikita out. She was purposefully trying to make him break before her. Although it was a good strategy- he couldn't stop staring at her- he wouldn't fall for her trick. She could've been naked for all he cared. He wasn't going to cave before her. No way.

"What? I can't wear pajamas around my house?" Nikita asked innocently. She flipped her hair over her shoulder and stretched. As she did, her breasts pushed against the thin fabric of her tanktop. Michael stopped being able to think again. The blood rushed out of his head, and all he wanted to do was grab her and fuck her.

Nikita slowly sauntered towards Michael to give him that chance. All he had to do was kiss her, and all those indecent thoughts he had at seeing her state of undress would come true. He almost gave in. but right before he touched her, he pulled back. For once, he had to beat her. He had to win one of their pointless arguments just once, "Stop. Don't act like you don't know what you're doing."

"What am I doing?" Nikita husked against Michael's lips. Her chest brushed against his, and she looked up at him with dark, lustful brown eyes. How he didn't just cave and kiss her then, even he didn't know. But his hands were balled into fists to refrain from touching her. He eventually managed to take a step back. However, when he couldn't feel her body heat anymore, he instantly regretted his decision. Nikita seemed to sense that and smirked.

To be able to win that stupid competition, Michael had to remove himself completely from Nikita. He also had to level the playing field. Mindlessly staring at her exposed skin and barely covered breasts, he somehow managed to come up with an idea. Quickly, and with great effort, he left her side and went to their bedroom, "Fine. Two can play this game."

Michael could've sworn he heard Nikita whine as he left her. He had half a mind to turn back around and give in. But if she was that desperate, then he was so close to winning. He simply needed to give her an extra push.

Soon, Michael emerged from the bedroom in nothing but his boxer-briefs. Once Nikita saw him, her knees buckled. She clutched the edge of the kitchen counter she had been cleaning and tried to steady her breathing. Michael laughed. He was so going to win. It was only a matter of time before she broke.

Joining her in the kitchen, Michael helped Nikita clean. He stayed as close to her as possible, and that was enough to drive her crazy. Her breathing was shallow, her pupils were blown wide, and he could see her erect nipples through her tanktop. Honestly, her reaction drove him crazy as well. His erection was very obvious in his boxers. Everytime Nikita glanced at it, her breath hitched, and her hips would shift desperately. Then, he'd get harder. It was an endless cycle of torture. Unfortunately, they were both too stubborn to break it.

At one point, Michael accidentally brushed up behind Nikita. He was just trying to put a dish away. He didn't mean to grind against her. Yet that was exactly what happened. And the instant she felt his erection rub against her, she moaned. She forgot all about the stupid competition and grinded her hips back against his. He moaned as well, thrusting shallowly and wrapping his arms around her waist. She kept grinding her hips as she reached around and dug her fingers in his hair. His lips dusted along her neck, and she shuttered.

All he wanted was to slip his fingers inside her underwear and feel how wet she was. He wanted to keep hearing her moan. He wanted to fuck her right there in the kitchen. Yet his damn stubbornness held him back. She had to make the first move. She had to lose.

Nikita refused to, however. She was going to be just as stubborn as Michael. As he stilled, so did she. Both were left breathing harshly and clinging to each other way too tightly. Their hips begged to thrust again, yet they held back. The couple would rather punish themselves than see the other win. Their priorities were so very fucked up. It had always been known that their stubbornness would get them killed one day. It was just never as obvious as it was then.

Somehow, the couple moved away from one another. Maybe the fact that they both stopped moving against each other stirred them to back off; they wouldn't want to keep going if the other didn't. Michael moved across the kitchen while Nikita pressed her back against the counter. She clutched the edge again and avoided eye contact. He didn't blame her. The two needed some kind of distraction before they exploded. Once her mind could focus on something besides Michael, Nikita was able to suggest, "Let's watch a movie…"

"Yeah…" Michael agreed breathlessly. Nikita just nodded and moved towards the livingroom. He needed an extra minute before he could follow, however. Opening the fridge door, he cooled his heated body down as much as he could. The cold fridge only slightly helped. Hopefully, the movie could take care of the rest.

Nikita had picked out a great distracting movie by the time Michael joined her on the couch. He didn't sit next to her, though. She sat bunched in a corner, and he reclined on the opposite end. It would take more effort to touch each other than to not, which was perfect as they watched the mindless action movie. Nikita was smart to choose something with tons of explosions and gunshots. Neither could think about sex while those were on the screen. They just might be able to make it through the night completely fine.

Until a sex scene played.

All the action and violence was interrupted by a gratuitous and senseless sex scene. The couple couldn't stay distracted then. Their minds were right back to what had happened in the kitchen. Michael tried to adjust and slightly alleviate the painful erection in his boxer-briefs. However, that caused Nikita to stare at his lap. Her gaze was dark and lustful. And her breasts pushed against her thin tanktop with each breath. It was the same reaction she had in the kitchen. Except, that time, she shifted her hips desperately, and a needy moan broke past her lips.

Fuck the competition.

Michael couldn't remain stubborn while Nikita was so horny beside him. He didn't believe she could either. If she moaned just by looking at him, the instant they kissed, they'd forget all about the competition. It wasn't about who won or lost anymore. It was about who could come to their senses first and kiss the other. Fortunately, Michael was always great at remembering to kiss Nikita. Stupid points to prove and the distance between them on the couch be damned, "Fuck it."

Grabbing Nikita, Michael pulled her in for a feverish kiss. She returned the kiss instantly, turning off the TV and pulling him flush against her. She didn't brag about winning or make an annoying quip; she simply yanked at his boxers and slammed her hips against his. Moans already overtook them. Their legs entwined and their hips grinded fiercely. Hands tore at underwear the best they could without making the couple separate. The two couldn't even think about pulling away. Their hips needed to connect immediately.

However, Michael did attempt some foreplay. He wanted Nikita so hot and ready that she was begging for him. She was already at that point, though. When his hand slipped past her lacy underwear, and he fingered her, he felt how wet she was. Both moaned. He began to move his fingers inside her and rub her clit, yet Nikita tried to stop him. She didn't need all of that. She didn't want all of that. She only wanted his cock moving inside her, "Michael… just fuck me… I need… I need you inside me."

"Bed…" Michael managed to breathe; though, it took even more effort for him to move off the couch. Once he did, Nikita sprang to her feet after him. She shoved him towards their bedroom and shoved at his boxer-briefs. They might as well remove their clothes as they shuffled to bed. It was the only time they could justify being apart, especially since it meant they could immediately fuck once in bed.

Crashing naked into their bedroom, the couple was all over each other. Lips left heated kisses on necks and chests while hands grabbed asses and caressed inner thighs. Michael soon nudged Nikita on the mattress and reached for a condom in the nightstand. She didn't leave him alone as he searched for protection. She stroked his cock and kissed his lower abdomen. It took a lot of effort for him to remember what he was doing. It would've been so easy to just let her jerk him off. Yet that wasn't what they both wanted. He had to put on a condom, and he had to thrust deep inside her.

He had to swat away her hands to be able to roll on the protection. As soon as it was in place, though, Michael kissed Nikita and joined her on the bed. He readied himself to thrust inside her. But before he could, Nikita wrapped a long leg around his waist and flipped them. She settled on Michael's lap and grinded against him. Matching the rhythm of her hips, he finally thrusted inside her. Both of them stilled and moaned loudly.

Slowly, Nikita began to rock her hips back and forth. Michael massaged her breasts and moved his hips along with hers. Monas and soft pleasure filled murmurs fell past their lips. It was so stupid of them to keep themselves from that feeling for so long. All they really proved was how stubborn they were, not who could hold out longer. Yet it didn't matter then. They could be swept in so much pleasure then, they could make up for lost time, and they could connect in all the best ways.

When Nikita began to rub her clit, Michael thrusted faster. She kept up with him, but her moans turned intelligible. Especially when he softly rolled her nipples. Her head snapped back as her back arched and her eyes closed. She rubbed her clit harder, his name constantly moaned against her lips. He replaced her fingers with his thumb and rubbed and thrusted to the same beat. Begging for more, her orgasm began to build. Her heart thudded, her breath came in short pants, and her hips gyrated wildly. Michael didn't dare stop what he was doing. Not even when Nikita cursed and screamed. He was going to ensure she came hard.

And she did.

Her orgasm soon overcame her, stuttering her hips and making her call out his name. Nikita succumbed to the pleasure and collapsed in Michael's arms. He held her tightly. Yet he didn't stop. She was going to ride through each high of her orgasm.

As she came, Michael thrusted deep inside her and flipped her onto her back. He gently brushed Nikita's wild hair out of her face and continued to move his hips. Once her orgasm settled and she could breathe again, she crashed her lips against his. She moved her hips with his, each of their kisses being broken by moans. Whereas he gently held her, she wrapped her limbs around him tightly. Her fingers buried in his hair, and her heels dug into the small of his back. She had him trapped; he couldn't move from her. Fortunately, that was the last thing he wanted.

Hips gyrating and snapping as one, the couple kissed, caressed, moaned, and drove each other higher and higher in pleasure. Soon, Michael shifted his hips and thrusted into Nikita in just the right spot. She moaned as much into his ear, forcing him to hit the same spot over and over again. Their foreheads pressed against each other when their moans overtook their kisses. Intense pleasure built between them, and their hips snapped harder and faster. Moans of names and curses filled their bedroom. They couldn't even concentrate on caresses anymore. The two just held each other and thrusted.

Eventually, another orgasm crashed into Nikita. Her arms and legs loosened their hold on Michael as she came. She couldn't hold onto reality as pleasure carried her body away. Her pulsing pleasure, however, helped Michael reach his bliss as well. He managed a few more thrusts before his own orgasm took over. The couple writhed and moaned together. They were all consumed by their passion, but they still managed to stay as one. That was the most important thing about sex that they had missed out on for far too long. They had missed being closer than anyone else in the whole world; they had missed being one.

Once they were spent, Michael and Nikita just laid in bed together, catching their breath and settling their buzzing bodies. A few caresses and kisses were shared, yet they mostly just tried to relax. Nikita was the first to collect her thoughts. Although she absolutely loved the amazing sex they had just had, she swore to never go that long without it again. There was no point to it. Michael and Nikita didn't need to prove anything to each other. Especially when it came to the bedroom, "We are never challenging each other like that ever again."

"But we can definitely fuck like that again," Michael chuckled as he kissed Nikita. Her hips rolled softly against his, turning his laughter into moans.