Chapter Text
While Keith was away with the paladins, Shiro and Acxa were patiently waiting for him to come back from the ATLAS just as they did every time he went out to help form Voltron. They were rarely alone together, but they were comfortable with each other’s presence. Acxa was only wearing an oversized t-shirt, bra and panties while Shiro only wore his pajama pants; he knew that she wasn't put off by his bare upper body, in fact he noticed how she occasionally glanced at him. Acxa was laying on the large bed while reading something on her holopad while Shiro sat on a chair and wiped his eyeliner off with a towel. Shiro often wondered what it would feel like to fuck Acxa, but he could never seem to get the chance or the courage to try. Besides, he was gay, or at least he thought he was gay up until he started feeling attracted to his and Keith's girlfriend.
Shiro glanced at Acxa every so often, checking her out; she had a nice pair of legs that he liked looking at and her hair always felt soft to the touch, he wished that they were cuddling so he could gently run his fingers through her dark blue locks. Acxa noticed how Shiro kept glancing at her, but she didn't think much of it despite being able to smell his excitement. Shiro's imagination got the better of him and before he knew it his dick was getting hard, creating a tent in his loose fitting pajama pants. His scent was strong and musky, something that had Acxa's attention when she took a deep breath in. However, she didn't want to just call him out in case he was thinking about Keith.
"Is something bothering you?" Acxa questioned without looking up from her holopad.
"What makes you think that something's bothering me?" Shiro asked her as he placed the towel down on the chair's armrest, promptly walking over to the bed and sitting on the edge; he was painfully aware of his erection, and with how obvious it was he felt embarrassed that he had it.
"Look, if you need to go masturbate, then go ahead." Acxa told Shiro dryly, trying not to let his scent entice her.
"I- I'm not- I mean… I'm not going to, uh, go masturbate. You're just as much my girlfriend as you are Keith's; I want to have you the same way he does." Shiro answered, quickly becoming flustered after what she said.
Acxa arched an eyebrow as she glanced up from her holopad to see if he was serious or not. He was, obviously, so she sighed and turned her holopad off, then she put it on Keith's nightstand. Shiro moved further onto the bed before pinning Acxa to it, pressing his lips against hers in a passionate kiss. Acxa wasn't expecting Shiro to act the way he was acting with her, but she kind of liked it. Shiro was absolutely clueless of how to pleasure a woman, so he would just have to wing it; he'd watched Keith fuck Acxa plenty of times in the past and he'd eaten her out a few times, he figured that it couldn't be too difficult.
Shiro was an incredibly handsome man with his mature grey eyes and white hair, not to mention his smooth voice often sent shivers down her spine whenever he addressed her. The way his lips moved against hers made Acxa quietly moan into the kiss, then she felt one of Shiro's knees in between her legs, keeping them apart. Shiro cupped Acxa's right breast with his left hand, lightly squeezing it and making her whimper. Acxa's fingers tangled themselves in Shiro's hair as her lips danced with his, deepening the kiss. Shiro could hardly believe that he was actually on top of his girlfriend while kissing her so passionately, he never thought he would ever do such a thing with a woman, and yet it was oddly pleasant.
"S-Shiro!" Acxa whimpered needily, letting herself be vulnerable as she pulled away from the kiss.
"Yes?" Shiro questioned while gazing into her eyes; he wanted to have her trembling in absolute euphoria beneath him, but at the same time he wanted to take his time with her.
"Fuck me, Shiro." Acxa answered quietly, her heart pounding in her chest while she gazed into his eyes.
"Are you sure? Once we start, I might not be able to stop." Shiro said, his whole body hot and achy with the need to release all of his pent up sexual frustration for her that he didn't know had been there.
"I don't care." Acxa purred seductively, the need to have his cock inside of her becoming stronger.
Shiro got off of her so that he could take his pajama pants off, his cock bobbing once it was freed from its confinements. Acxa sat up and removed her oversized t-shirt, bra and panties, tossing them onto the floor alongside his pants. She eyed Shiro's nine-inch cock, desperately wanting to feel it buried deep inside of her. Shiro rarely saw Acxa relax, so it was a nice change to see her so vulnerable. Acxa pressed her bare thighs together, feeling just how wet she already was; it would be her first time having sex with just Shiro, and she wasn't sure what to expect from him.
Shiro got back on the bed and climbed on top of Acxa again, roughly kissing her. Acxa spread her legs open, inviting Shiro in between them while also presenting herself to him. His cock was so much bigger than Keith's; thick and long with a thick vein running up the right side, she never thought that she would ever have it inside of her. Shiro lowered his body and slotted himself between her legs so that he could rub his cock up and down her lower lips and clit, feeling just how wet with arousal Acxa was. It was strange to him, having a partner who got wet naturally and wouldn't need lube, nonetheless it would be nice to be able to just slip right in.
Being with a woman was strange, but Shiro thought that Acxa was incredibly sexy. Her breasts were big enough for him to squeeze and palm while her nipples were perfect for either pinching, rolling between two fingers or sucking on. Shiro moved his hips a little faster, coating the bottom of his length with her natural slickness as he rubbed himself along her sex. He couldn't believe that he was going fuck Acxa; it was a little overwhelming, but not in a bad way. With how Keith acted when he and Acxa had sex was a good indicator of how it would feel, he could barely wait to feel it for himself.
Acxa liked having Shiro on top of her; he was bigger than Keith and his body's warmth blanketing her made her feel warmer in the slightly chilly room; she hoped he would remain on top of her during their little romp. She slowly rocked her hips in time with his, allowing quiet moans to spill past her lips as she felt his dick slipping along her sex while he fondled her breasts. He tweaked and rolled her nipples between his thumbs and forefingers, causing Acxa to arch up into his touch. A fresh wave of slickness spilled out of her pussy after the tip of Shiro's cock got caught on the rim; she needed him inside of her badly, but she couldn't seem to form the right sentence in her mind. She could feel how hard he was, he wanted her just as badly as she wanted him.
"Are you ready?" Shiro softly asked Acxa after he broke the kiss and they opened their eyes, not wanting to do anything without her consent.
"Yes." Acxa answered almost too quietly, closing her eyes and wrapping her arms around the back of his neck.
Shiro was surprised that he hadn't lost his erection yet, but he was glad that he hadn't since he could proceed with having sex with Acxa. He had to take a few deep breaths before positioning the tip of his cock at her slick entrance, his mind reeling with the thought of actually having sex with a woman. Acxa whimpered in anticipation when he rubbed the flushed tip against her entrance a few times, occasionally just barely slipping it in. Shiro closed his eyes as he slowly sunk in, his body shaking a little as her warmth engulfed his length. He could feel her tight, slick insides caressing his shaft before the tip hit something; her cervix.
Shiro couldn't believe it; he was actually inside of Acxa, and he wasn't grossed out or anything like the last time he tried having sex with a woman back in college. He was in a mental haze as he just laid there, feeling her hot inner walls squeezing his length while she adjusted to him. Acxa felt absolutely full with Shiro's large cock buried deep inside of her, she knew it would be big but she didn't think she could take the entire length of him. She wrapped her legs around his waist, pulling him closer while she gripped his shoulders. After a few moments Shiro slowly pulled out a little before slowly thrusting back in, a moan escaping his throat; he wasn't expecting to feel so good as his cock slid against her slippery inner walls.
Shiro's pace was a little shaky at first as he slowly thrust in and out, but he got the hang of it when he thrust faster. His length glided in and out of her pussy, rubbing against her internal pleasure spots which drew sweet moans from her. Acxa couldn't hold back her moans as Shiro thrust into her faster, stretching her pussy farther than it had ever been stretched from a cock. Shiro felt closer and more love for Acxa than before; the whole experience was mind blowing, and he couldn't get enough of her. Acxa's moans echoed off of the walls as Shiro drilled into her, the man above her setting a faster pace meant to bring them both over the edge of ecstasy.
"Fuck, you feel better than I thought you would. Your pussy is so tight and wet and your body is absolutely gorgeous." Shiro groaned in pleasure, his hands tightly gripping her hips while he buried his face in the crook of her neck.
Acxa couldn't stop moaning as Shiro pounded into her, his balls slapping against her ass cheeks with each thrust. Her nails dug into his skin, drawing a little blood; he didn't seem to mind, since he already had a lot of scars after being a gladiator at central command. Shiro couldn't get enough of the feeling of Acxa's pussy clamping around his length and he couldn't hear enough of her moans and cries of pleasure, if she kept sounding so sexy then he wouldn't last much longer. Acxa's thighs quivered and she let out a loud, long moan when Shiro's cock hit her a-spot head on with the tip. Shiro didn’t miss her reaction, so he readjusted his angle a little so that her hips were slightly up off of the bed.
Having sex with Keith had always felt good to Acxa, but having sex with Shiro was a whole different experience; his body covered hers easier, he had a bigger cock and she loved how soft yet masculine his scent was. Each time the tip of his cock bumped up against her cervix with every thrust she exhaled sharply, feeling dazed and a little dizzy from the pleasure and her erratic breathing. Acxa could feel the soft hairs and firmness of Shiro's pelvis rubbing against her clit with each thrust, creating a warmth in her lower belly that spread down her legs and all the way down to the tips of her toes. She hoped that Shiro would fuck her the next time she was in heat, having two lovers servicing her instead of just one would help her through it quicker, especially with Shiro's big dick and how powerful he could be during sex. Shiro felt Acxa hold onto him tighter and he could feel her body trembling against his, he wished that he could feel how good she felt during that moment.
"T-Takashi!" Acxa whimpered his first name sharply, her eyes screwed shut as she attempted to rock her hips against his.
Shiro was surprised when she suddenly used his first name; it was really hot and it made him drill into her harder and faster, his cock hitting her cervix with each thrust. It wasn’t long before Acxa climaxed, wailing his name as her cum coated his cock and her whole body shook violently. Shiro had to slow down a little due to the sudden vice-like grip around his cock; he never knew that vaginas could constrict so tightly, it literally felt like Acxa was squeezing the life out of his cock. The sudden rush of slick fluids around his shaft made him lose his mind, and Shiro buried his face in the crook of her neck harder and moaned her name as he started to come deep inside of her, thrusting as far inside of Acxa as he could. He felt a little embarrassed for coming so quickly, usually he had more stamina but with how tightly her pussy gripped him he quite literally almost lost his mind during his euphoric orgasm.
Shiro's cock pulsed and his balls tingled as his cum spilled inside of her, his whole body shaking almost uncontrollably as he worked himself and Acxa further into their climaxes. His semen felt warm and thick inside of her; Acxa's orgasm lasted seemingly forever, or rather she experienced multiple orgasms from the hotness of his cum accompanied by the firm rocking of his pelvis against her clit. Shiro's own orgasm eventually slowed to a stop and his cock began to go soft, much to his girlfriend's displeasure; if he could stay hard longer, then he would. Shiro breathed in Acxa's scent before pulling out, both of them letting each other go so that he could roll onto his back, the two of them panting heavily. In the afterglow, Acxa cuddled up to her lover and started nuzzling Shiro while she laid halfway on top of him, purring softly.
"Are you alright? I didn't hurt you, did I?" Shiro quietly asked Acxa after a few moments, remembering how roughly he'd fucked her and immediately worrying that he might have accidentally bruised her cervix or something.
"I'm fine, Shiro… You felt really good." Acxa whispered, her throat feeling a little sore.
"We're definitely doing that more often." Shiro said as he kissed her forehead, wrapping his arms around her hot, sweat slicked body.
Acxa purred, agreeing with him; she wanted to have rough sex again sometime in the near future with Shiro, and it would be hotter if Keith was there to watch them. His large cock had felt so good inside of her and she wanted to feel it buried deep within her core again; since Shiro had enjoyed himself during their first time together she knew he would want to fuck her again in the near future. Shiro was surprised that Acxa liked pillow talk after sex; it was rare that he got to see her softer, more relaxed side. She was surprisingly submissive in bed and it made Shiro feel a warm feeling bubble up inside of him, a feeling that he never felt before. Eventually Shiro and Acxa drifted off to sleep after he turned the lights off and covering their nude bodies with a fluffy blanket; he wanted to make sure they were both warm, and they both needed a little nap before Keith returned.