Impregnated By My Friend's Hot Husband

We were at Jessica’s holiday apartment in Devon. Ashley, Jessica and I were as thick as thieves back in school. We went our separate ways, but kept in touch.

Every summer, we made a pledge to come together and have a few days of girly fun and just forget about our worries and catch up.

This time, it was Jessica to host us. What could I say about Jess? She was blond, gorgeous and had a shamelessly voracious appetite for men. So it surprised me when she told us she got married.

“You guys will love Carlos,” she said. “Tall, dark and handsome.”

I was curious. Especially that Jess was the last girl on earth I’d expect to be tied down to one man.

I was married, too. After university, my family arranged for me to meet Sanjay. Both of our families approved of the union.

Did I love my husband? I suppose I did. Sanjay was sweet, dependable and hardworking. If I had one qualm, it was that his proficiency in the bedroom was lacking. Sanjay was infatuated with me. For him, sex with me was something he was infinitely grateful for. He worshipped the ground I walked on, telling me how lucky he was to marry a wife as beautiful as I was.

That was nice, but sometimes a girl just wants to be fucked, not made love to. It was like being tied to a puppy, not a man. Unfortunately, Sanjay didn’t last long inside me, either.

There was an expectation from our families that I would bear him a child. It wasn’t from the lack of effort, but I suspected Sanjay was less potent than was needed for our efforts to bear fruit.

Jess and her husband rented a holiday condo down in Devon. I hadn’t been there before, but I was promised the nightlife was good. Lots of students come down for the summer. Muscle and cock... Just the way I liked it.

We wasted no time letting loose. The girls and I had been drinking, dancing, flirting with horny young men late into the night. A couple of more boisterous ones managed to grab my arse, and one even started fingering Jess in the middle of the nightclub. She didn’t invite him home, though, much to his disappointment.

“I enjoy the attention,” she said as we took a break near the bar. “Makes me feel good, and besides, I got a nice, big cock waiting for me at home.”

“Is Carlos cool with your behaviour?” I asked.

Jess downed a shot and smiled. “Oh yeah. Sometimes he likes to watch other men fuck me. We got a stag-vixen thing going on.”

I didn’t quite understand, but simply nodded.

“How about we go finish the party back at ours? Think Ashley is done for the night.”

I looked at our friend. Her dress was halfway up to her ass and she was so wobbly she had to walk around barefoot.

“Let’s sober her up before we get a taxi. They’re not going to want a vomit risk like her in the back.”

We got back to the apartment around two. Plenty drunk and, unfortunately, very horny. At least Jess could finish the night off with her husband’s cock. Ashley slept all the way back, so I knew she was down for the count.

“Want a drink?” Jess asked as we got inside. We were making a lot of noise, but she didn’t seem worried about disturbing Carlos.

“Why not?”

I’ll probably regret it in the morning, but that was tomorrow’s problem. Between the two of us, we managed to settle Ashley on her bed, threw a blanket over her and hoped she would have the presence of mind not to throw up all over herself.

I thanked Jess as she handed me a glass of red. We were going to have one of those girlfriend talks late in the night. We used to do that a lot back in the day, so I wanted to enjoy myself while I had the chance.

“So how is Sanjay?” Jess asked, settling comfortably on the sofa. She had changed into panties and an oversized tee. I followed suit, but a bit more conservative, with my lazy jogger bottoms and a vest top.

“He is fine.” I swirled the drink around the glass before drinking.

Her eyes narrowed and her mouth widened into a mischievous smile. “Fine, fine? Or fucking your brains out to make you pregnant fine?”

I sighed. “We do have sex... It’s just that... Oh, what the hell. Sanjay is impotent. We were intimate for months and there was not a single hint of conception. I checked myself out. I’m fertile.”

“Oh, honey. I’m so sorry to hear that. I know you want a baby so bad, too.”

“That’s why I decided to come. Figured some time with my girls would help clear my head a little.”

Jess downed the rest of her drink. “I have an idea.”

“What do you mean?”

“You could always use a sperm donor.”

“What? No. Sanjay would never agree to that. I’m his wife.”

“Sanjay doesn’t have to know.”

“I... Well, he’ll have to be an Indian donor and there’ll be too much sneaking around. It wouldn’t do to give birth to a white baby. If I ever entertained the idea.”

“Well, he doesn’t have to be Indian. Just brown.”

My stomach tightened at her words. Jess raised her eyebrow at me. “Do you think Carlos would make a good candidate?”

“I don’t understand.”

“I’m asking if you’d like my husband to impregnate you.”

I searched her face for some kind of trap. I didn’t see any. But it didn’t ease the knot in my tummy. Carlos was a handsome man. Rugged and muscled. And I remembered how dapper he looked in his suit on their wedding day. I had a few fun nights with my vibrator fantasizing about him. Shameful, but it was just harmless fun.

But this was something else entirely.

“Are you being serious, Jess?”

She laughed. “I’m being very serious, darling. You know how much I love sex. My reputation back in the day wasn’t exactly a secret.”

I nodded.

“Well, Carlos has an appetite that rivals mine. And it won’t be the first time I loaned my cock out to someone else.”

Her revelation shocked me a little, but wasn’t a surprise. Back in uni, Jess had a little notebook, detailing all the guys she fucked. Neither students nor lecturers escaped her seductress charm.

Her smile deepened, and she took my hand.

“Why don’t we go examine the goods? You can back out anytime you want. Carlos is a good boy. He’ll respect your wishes.”

“But he doesn’t know about your plans?”

“He doesn’t have to. He’ll fuck anyone I tell him to.”

* * *

We passed Ashley’s room on the way to Jess’. She was drunk snoring, so we knew she was out for the entire night. Jess left a wash tub next to the bed, just in case Ash decided she needed to throw up in the middle of the night.

We got to her bedroom, and she rapped on the door.

“Damn Carlos. I was hoping he’d be awake.”

“Well, it is getting late. Maybe this is a bad idea.”

Jess opened the door and felt for the light switch. The room lit up immediately and Carlos sat up, rubbing his eyes.

“Babe, what the hell?”

My breath held in my throat. Carlos slept topless, and his body was hard and muscled. Not an ounce of fat on his chiselled torso. Shame coursed through me as I made a mental comparison between him and Sanjay, who was all puffy and chubby.

“Get up.”

“Whats going on?” he asked, yawning and stretching, further accentuating his tight, packed muscles.

“Go for a quick shower and brush your teeth. Now.”

Carlos looked at Jess and then at me. Then his face broke into a smile. “Babe, are you suggesting..? I thought we don’t play with friends.”

“We’re not playing. Well, kinda, but also it’s a bit different. Go freshen up, you’re gonna enjoy this.”

He simply nodded and got out of bed. I gasped as the sheets slid off his lower half, exposing him completely. He caught me looking, but didn’t show the slightest bit of self-consciousness.

If anything, I thought he liked my reaction. He wore nothing to bed, and his dick, although soft, was long. I could only imagine how big it’d be fully hard.

Carlos left for the bathroom, and Jess grinned. “Like what you see?”

“I... He’s a very handsome man. But I’m not sure if this is a good idea. I mean, christ. He’s so fit and I’m out of shape. He’s not going to be interested in me.”

My friend’s arms snaked around my waist, pulling me tight against her. “Meera. You’re fucking beautiful. Don’t ever think otherwise. And trust me, Carlos would love to play with you.”

My face flushed. It was hard not to think about his dick. And whether it would fit inside me. And Jess was so close and warm against me and I haven’t experimented with girls before and I didn’t find the feeling... Repulsive at all...

I cleared my throat. “What did he mean by not playing with friends?”

“Oh, that. Carlos and I like to share. But we don’t get close friends involved. Just in case if there’s a problem after.”

I felt her huff, taking a waft of my hair. Her hand danced along my tummy and I wondered if it’d go any lower. The tingling sensation between my legs told me I wanted her to.

“But I’m an exception?”

“Honey,” she purred. “This isn’t playing. This is doing you a favour.”

“But Carlos doesn’t know about me wanting to be impregnated...”

“I’ll tell him when the time comes. Trust me, he won’t refuse.”

I nodded, my attention being pulled in different directions. I felt myself push back against her even deeper, as one hand cupped the underside of my breast and the other caressed my inner thigh.

“You’re so soft and smell amazing,” Jess whispered.

I turned to look at her, but the moment I did so, she pressed her lips against mine. I gasped at how sudden it was, at how soft her lips were. Jess moaned a little, and her tongue delved out, just the tip nudging against my lower lip.

Blood pulsed in my ears as I felt her tongue probing the entrance of my mouth. I felt the tension, the need, but she didn’t force herself into me. It was just there, soft and tender, exploring me, sensing my level of discomfort.

Her hand cupped my breast and swiped her thumb over my nipple. A bolt of pleasure coursed through me.

“Jess...” I moaned.

“I’d blame it on the drink, but I always wanted to kiss you,” Jess said.

“I never knew.”

“Do you mind it?”

Her eyes searched for something in mine.

“It’s nice,” I admitted.

Her smile grew wider. “Good.”

Her mouth went back to mine, and she grabbed my hands, placing them against her hips. My eyes were closed as I concentrated on her mouth, which was growing bolder with each passing moment. I felt her guide my body, moving me until I felt myself press up against the wall.

Her hand drifted under the band of my bottoms and pushed past my panties. I didn’t know if she forced my legs apart or if they opened up for her by themselves.

I moaned into her mouth as her cool fingers brushed along my pubic bush.

“Mmm, a bit of hair,” she purred.

“It itches if I shave it off,” I replied, blushing.

“I don’t mind. I like a bit of hair. I shave mine, though. Would you like to feel it?”

“What? I-I don’t know. I haven’t done anything like this before.”

She stepped back, smiled, and shucked off her panties. Her oversized tee covered up the details, and I was surprised at how much I wanted to see her.

She encouraged me to do the same with my bottoms. When I kicked them off, she had me against the wall again.

Like before, she took my hand. It trembled with excitement as she guided it between her legs.

“We’ll do it both at the same time,” she said.

I nodded as she pulled my hand deeper between her. My fingertips brushed against bare skin, soft and warm and supple.

“It’s so smooth.”

“I wax a lot. Makes the hairs nice and thin.”

Her fingers danced through my bush, making my legs all weak and rubbery.

Then she went even lower, cupping my pussy.

“Jess!” I cried out.

She chuckled as I braced against the wall behind me. I no longer trusted my legs to keep me up as she caressed my pussy. It was soaking wet.

“So hot and tight. Carlos is going to enjoy this so much.”

“Jess...” I whimpered.

She moved forward and my hand closed around her pussy. My fingers were flooded with a hot wetness.

My eyes went wide, and she kissed me again. This time, it was hard and deep. Her tongue searched for mine desperately. I moaned, returning the favour and tasting the wine on her. My head was going blank as her fingers explored me, sending countless waves of pleasure through me.

My own fingers were pushing into her pussy, too. It felt familiar, yet different at the same time.

“Is this the first time you played with a girl?”

“Y-yes,” I admitted.

“I’m glad I’m your first.”

We went back to kissing more, and I felt myself relax. I was getting used to the idea and enjoying it immensely.

Then Jess suddenly pulled away.

She brought her fingers up to her mouth and sucked on them. “Sorry, I needed to taste you. And you don’t disappoint.”

“Thank you, I guess.”

She simply smiled and then got on her knees.

“Jess, what are you-“

She didn’t answer. She simply buried her face between my legs and started eating me out.

I cried out, my hands shot out and grabbed her head.

“Jess! No... I’m dirty..!”

“You taste amazing, Meera,” she groaned into my pussy.

Her tongue invaded the deepest recess of my sex, pushing past my inflamed folds and lapping up my juices. To say she was enthusiastic was an understatement. Now and then, she would come up for air, and drag her tongue along my sensitive little clit, turning me into a shuddering mess.

“So fucking sweet,” she purred.

I pulled against her hair, yanking her harder against my cunt. Fuck, I needed it so much.

And then an idea popped into my head. I brought my other hand up. The one I touched her with. It was still wet and glistened with her juices.

I swallowed.

Before I could change my mind, I pushed them into my mouth, tasting my friend’s excitement.

A deep sigh escaped me as I tasted her sweet, feminine nectar. It didn’t taste bad at all.

When I looked down, Jess was already watching me. My face flushed, as if I was caught doing something very naughty.

I suppose I was.

My breathing felt tight. My nerves tingled with need and excitement. Sanjay never made me feel like this...

Jess got back up and grinned. “Did you enjoy the taste of my pussy?”

I nodded. I couldn’t find the right words.

“Good.”

She leaned in and kissed me again. Her tongue rolled over mine, wet and sticky. God, I tasted myself on her. But I couldn’t find the strength to stop. Her kiss and her touch was mesmerising.

“Maybe I should come back another time.”

We turned and Carlos was leaning against the door frame. He was fresh out of the shower and had a towel wrapped around his waist.

“Ah, perfect timing. She’s all warmed up. Any longer and I would’ve kept her for myself.”

He smiled, showing off a perfect set of pearly white teeth. “You know I wouldn’t mind, Jess.”

Jess went over to shut the door. Then she curled her fingers over her husband’s towel and tugged, making it fall to the floor. She wasted no time wrapping her hand around his already rock-hard erection, giving him long pumps.

“Good thing I have plans for your cock tonight.”

I watched as Jess shamelessly have her husband a handjob. It was nice and slow, and she gripped it a little harder when her hand reached the tip, pulling the skin back and exposing the fat, bulbous head.

“Mi dios,” Carlos groaned. “You’re going to make me cum if you keep doing that.”

“Don’t you fucking dare.”

Jess turned and nodded at me. “Come, Meera. Come get acquainted with Carlos. See if his dick is to your liking.”

I felt like a shy schoolgirl in front of her crush. Carlos said nothing. He simply smiled and his eyes radiated a welcoming warmth that drew me to them.

“Get on your knees,” Jess said, as soon as I got close enough. I swallowed and did as I was told.

Jess joined me on the carpeted floor and Carlos stood over us, his huge dick hovering above me.

“Don’t be shy. Give it a taste.”

Carlos’ dick was massive. I honestly didn’t know where to begin. So I opted to start roughly a third of the way down from his tip, at the side of his shaft. I pressed my lips against his skin, which felt hot, tight, and rubbery.

“That’s it, babe,” Jess encouraged me.

My lips followed the ridge and bumps of his cock. A fat vein acted like a path back towards his tip.

Carlos groaned with anticipation, and I found the sound of his animal grunts very much to my liking. With just my lips, I commanded the pleasure of a handsome, muscled male. It made me want more.

The moment I kissed his tip, I realized two things.

First, it was almost the size of a golf ball. There was no way it was going to fit in my mouth. Still, I wanted to give it a damn good go of it.

Second, he was so excited, he was leaking copious amounts of precum. I dragged my tongue along his slit, earning myself a particularly feral growl of appreciation.

“Oh fuck, Meera. You make me desperate for your sweet mouth,” he groaned.

His hand reached the back of my head and pulled me toward him. Drunk with lust and a desire to please him, I let it happen. My jaw stretched a little, but I managed to work his tip into my mouth.

He groaned again, and I felt his fingers tighten into my scalp. It felt very encouraging.

Try as I might, I couldn’t take much of his cock into my mouth. Sanjay was nowhere as thick and long as Carlos. To be honest, I wasn’t sure if I wanted a big cock all the time, but I was definitely going to make the most of it. I drew up as much spit as I could, lubing his cock up and gave him a sloppy blowjob.

Jess leaned over and took one of Carlos’ heavy shaved balls into her mouth and she sucked.

“To have two beautiful women like this... I could die a happy and blessed man.”

Jess giggled. “Don’t you cum yet, you hear? I want Meera to enjoy your dick.”

She said that, but she used her hand to milk her husband’s shaft. Jess, it seemed, enjoyed tormenting her husband.

“I’ll do my best,” he swallowed.

My jaw ached, but I was enjoying the illicit thrill coursing through me. Sanjay was probably asleep by now. And here I was, pleasuring another man. It felt so wrong, but I couldn’t help myself.

Now and then, Jess would get off his nuts and her mouth made her way up his throbbing shaft. We’d meet at the tip and would end up making out, tongues lashing and smearing delicious precum all over our lips.

“Girls... Please,” Carlos hissed. “I can’t take it anymore.”

Reluctantly, I pried myself away from his cock, and Jess couldn’t resist running her tongue over my lips, licking up her husband’s juices.

“Come,” she said, holding my hand and taking me to the bed.

She had me on the sheets, and gently pried my legs apart.

“I just love how smooth and beautiful your skin is,” she murmured, pulling my top off. I felt a little self-conscious as my breasts were exposed to her husband. But he simply licked his lips, clearly liking what he saw.

Jess’ head disappeared between my legs and I cried out. Her tongue lapping up my cunt juices again.

“J-Jess...”

I gasped, throwing my head back and getting lost in white hot pleasure coursing through me. At some point, I started teasing my nipples. Partly because they felt so fucking hard, they ached for attention. And also, I liked how Carlos watched us. I liked how he gripped his thick shaft and pumped away, clearly aroused from the sight of his wife going down on me.

I couldn’t help but want to give him a little show.

“I could do this all night, but I think it’s time for the main event. Carlos, come stick your dick in her.”

Carlos let out an animal growl. His voice was thick with need. “I’ll get the rubbers.”

“Forget about it. I want you to stick it in her raw.”

“Are you sure?”

“Would you rather wear one?”

Jess looked at me and raised an eyebrow. “Carlos is clean. When we play with others, he makes sure to wear a condom. Unless it’s me. And now, you, if you would like.”

“I don’t mind.”

“Fuck,” Carlos groaned and closed the gap between us like a desperate man.

He stood at the edge of the bed, looking down at me. His cock was impossibly erect and ready to go inside me.

“Are you sure, Meera?” he asked.

I reached out and grabbed his dick. It was hot and throbbed desperately in my hand. I guided it until the tip kissed my inflamed lips. “Fuck me, Carlos.”

Jess giggled. “You heard the lady. But let her take the lead. She hasn’t had a big dick before.”

“Yes, ma’am,” he grinned.

He rocked his hips, teasing my pussy with the underside of his cock. I was soaked and my juices slathered all over him.

Not able to resist anymore, I aimed his cock squarely at my entrance.

Carlos groaned and pressed forward.

“Oh, fuck,” I cried out. It was just his tip, but I felt it stretching me. He was so much bigger and thicker than Sanjay...

“You okay, sweetie?” Jess asked.

“Y-yeah... He’s so fucking big...”

Jess smiled and stroked my face with the back of her fingers. “Just take your time. If you want to stop, he will. Carlos is a gentleman like that.”

“No... I don’t want him to stop. I want to feel him inside me.”

God, this was so wrong. Another man other than my husband was entering me!

Carlos’ stomach was tight. His powerful hands gripped my thighs, taut with the need to impale his cock deep inside me.

Jess leaned over and took one of my nipples into her mouth, rolling her tongue around my hard, sensitive nub. “You’re doing so well, honey. You’re taking his cock like a champ.”

“Ah, fuck...” I moaned. I felt the inner walls of my pussy stretch around his invading dick. Carlos was taking his time, but it still felt a little sore.

“Mi dios. She’s so tight,” Carlos groaned. He gritted his teeth hard.

“He’s most of the way in,” Jess purred.

“I want it all,” I moaned.

Jess clambered up and kissed me again. Somehow, kissing her seemed to turn me on even more.

“Does Sanjay make you feel like this?” Jess asked, after a moment.

“No...” I admitted.

“There’s nothing quite like a big cock after you get used to it.”

We made out more and her hand closed over my clit, rubbing and circling it as Carlos’ dick plunged deeper into me.

I moaned, cursed and quivered as a mouth, fingers and cock assaulted my senses.

“Fuck..!” I cried out. “Oh, fuck!”

Then I felt the base of Carlos’ cock rest against my pubic bone.

I looked down, and Jess smiled at me.

“Congrats, Meera. He’s all the way inside you. How do you feel?”

I smiled. A wave of elation flowed through me. “I feel kinda proud of myself.”

“Good.”

“I’m going to start moving now,” Carlos said. His face was tight, like he was trying his best not to cum.

“Nice and slow,” Jess reminded him.

I felt him withdraw a few inches, and then he pushed it back in. Over and over. Each time, his cock would grind against the tight inner walls of my pussy, sending shuddering bolts of euphoria through me.

“Fuck,” I cried out. My fingers curled into Jess’ as she held me.

“Does it hurt?” she asked.

“No. It feels fucking amazing.”

Jess smiled and slid her tongue into my mouth again. This time, I sucked on it, greedily enjoying how she made me feel.

Carlos growled as he sped up his rhythm, feeling me getting used to his size. His fingers dug into my sweaty flesh of my thighs.

It was like a bright ball of energy welling up inside me. A part of me tried to keep it in, but it couldn’t be contained. It just swelled and swelled until it exploded inside me.

I pushed Jess away. “Oh, God!” I sobbed. “I’m cumming! I’m cumming all over your husband’s cock!”

“Cum, sweetie. Enjoy it. Cum knowing it’s another man’s cock that’s making you orgasm.”

“Oh, fuck!”

She knew how to press my buttons. My body convulsed and shuddered violently as one orgasm after another rocked through me. Carlos’ face was tight, clearly at his limit. Maybe he was driven by pride, but he kept working his dick inside me, determined to milk out as my climaxes as possible out of me.

I sobbed and whimpered and begged. I was going mad with pleasure.

When the crashing wave of my climax ebbed, I collapsed back onto the bed, gasping.

“That was so fucking hot,” Jess said.

“Babe, I’m at my limit,” Carlos moaned.

“Not yet. We’re not done yet.”

“Fucking hell.”

I lay there, weak and helpless as I watched my friend. She rummaged through one of her bags and fished out a mini vibrator. “Never leave home without it,” she smirked.

So that was what she was up to. It was selfish of me to not consider Jess. This must’ve been a huge turn on for her. I guess she-

Jess climbed onto the bed and lowered her crotch over my face. I moaned, but her pussy muffled my voice.

“Please eat me, Meera. I need my pussy licked out so badly.”

I simply moaned in response. I was still spent, and her thick feminine odour overwhelmed my senses.

Not to mention my pussy was still being fucked by her husband.

I opened my mouth and lapped at her folds, drinking up her sweet nectar.

“Oh, fuck. That’s it, sweetie, that’s the fucking spot.”

She turned on her toy, and it buzzed loudly. She pressed it against her clit and the head of the toy sent vibrations through my cum soaked chin.

Juices leaked down from her pussy as I wormed my tongue into her tight channel. Jess was gently rocking against my face, taking care not to suffocate me.

All I could hear from Carlos was his groans of desperation.

“Babe, I need to fucking cum. Her pussy is just too much.”

“Fucking do it. Cum inside her,” Jess above me mewled.

“You sure, babe? Is she on the pill?”

There was that low, mischievous chuckle again. “No, she isn’t. I want you to fill her cunt with your cum. Impregnate her.”

I wasn’t in the position to say anything, so instead I used my hands to pull my pussy lips apart, letting him know what I wanted.

“Fucking hell,” he groaned.

Carlos threw all caution to the wind. It was like a switch flipped inside him. Gone was his gentle touch. Instead he started fucking me hard. Really fucking me. He drilled his cock deep as he could into me, desperate to get to my fertile womb. He was like a beast possessed his sole purpose was to fill my womb up with his potent seed.

Just how I wanted it.

I cried out, moaning into the depths of my friend’s pussy.

“Fuck, I’m going to do it. I’m going to cum..!” Carlos growled.

“Do it! Let’s cum together. I want to see you empty your balls into Meera.”

Jess howled as she turned the vibrator to max, pressing it hard against her clit. Carlos gripped my thighs so hard, I was sure there was going to be marks in the morning. Not that I minded.

He slammed into me hard and fast, making the most of it. And then he howled. I let out a muffled cry as I climaxed again. But I also felt his dick swell up inside me, stretching me further. I felt him tighten up and relax and tighten again, as he shot load after load of his hot, thick cum deep inside me. A sense of euphoric elation coursed through me.

It was so fucking wrong, but my body wanted his seed. Craved it.

“Fuck, I’m cumming!” Jess above me cried out. Her thighs tightened around my head as she climaxed, and I used my tired tongue to pleasure her as much as possible.

Jess let out a weak, sputtered laugh and climbed off of me. Even covered in sweat, she was gorgeous.

Slowly, Carlos pulled back, letting his cock slide out of my gaping pussy. I tried to cover it with my hand, trying to keep his cum inside me, but Jess pried my hands away and started licking up his cum.

“What are you doing?” I gasped. “I need his cum.”

Jess grinned. “Don’t worry, sweetie. I’m addicted to Carlos’ delicious cum, especially if it’s mixed in with your juices. Besides, there’s plenty where that came from, and we got all weekend.”

I shook my head and chuckled. She had a point.

Thank you for reading. Go here to check out my latest bundle, Cucks, Cheaters and Hotwives Collection Volume 02

https://books2read.com/u/bp2kAk