Severa/Luna, Mamui, and MaMU threesome. Edited

"Kamui, I wanna go shopping, and you're coming with me." Luna demanded of her husband.
Kamui really didn't enjoy Luna's spending habits. The amount of money she spends was an endless abyss. At any store they go to, she just has to buy something, regardless if the item she brought was pointless or useful. Not to mention the fact that she spends a lot of money, so much that Kamui not only has to put in money himself for Luna's shopping sprees, but he's also stolen some from the army's budget. "Oh alright, but on one condition, we'll bring Kanna with us. I want her to have some mother-daughter bonding, and you haven't been giving that to her."
"...I actually wanted it to be just the two of us..." Luna muttered to herself.
"What was that?"
Luna blushed and became flustered. "...N-Nothing! I'll be glad to be with Kanna, in fact I should give her a reward. It was so kind of Kanna to give me flowers."
"How expensive would that be?" Kamui muttered out, "Well anyway, I'm gonna go wake up Kanna."
Kamui went to the king-sized red bed where Kanna was sleeping. "Wake up kiddo, your mom wants to go shopping" Kamui lightly tapped the little child on her shoulders. Kanna rose up, arms stretched out.
"Ahh... Where are we going father?" She yawned loudly.
"We're going to the stores with your mother, and we want you to come with us. Come on, let's go!"
"Yay! It sounds like fun!" Kanna jumped out of bed to hug Luna.
Kanna's energetic attitude at this hour grated on Luna's nerves, but she couldn't begrudge her daughter's childish enthusiasm.
"Well then, let's all have some family time." Kamui said. Kanna then took Kamui's and Luna's hands as they set out.
"I love you, Mom and Dad!!!" Kanna said, shining an innocent smile almost exactly like Elise's.

Hours had passed since their family outing, with Luna mostly hogging the time together. Kamui had grown tired of it, while Kanna was still the same as they left: Cheerful.
"Do you think we should have a break? In fact, we should eat, aren't you hungry?" Kamui asked his wife.
As he said this, not only did Luna's stomach growled but so did Kanna's.
"Oh alright." Luna winked. "But I'm not the one whose gonna get off the seat."
"I understand, my queen." Kamui smiled slyly. "Alright, but what do you want, Kanna, candy?" Kanna nodded with a smile.
"That settles it, I know exactly what we're getting." And with that, Kamui was off.
"Mommy," Kanna said. "I got you another flower." It was a vibrant red, Kanna's favorite flower ever since Luna had showed her the book of pressed flowers. A lock of Luna's long hair had trailed over the pages, and Kanna had gasped in wonder, comparing her mother's hair to the fiery petals.
"I suppose I should repay you for giving me those flowers, you've given me an awful lot, Kanna. Just give me a sec dear." Luna reached a hand into one of her many shopping bags.
"Yay! A surprise from Mom! I can't wait!" Kanna was giddy for what she was going to get.

"Wow, these kinds of books are so interesting! From Nohrian history to tactics galore, these shops have just about everything! Now if only I hadn't brought so many of them, then I'd have an easier time getting home." Robin had just exited out from the store buying nothing but books. It was a personal hobby he enjoys. What he preferred reading the most was anything about tactics, the man was eager to learn new strategies and put them into execution on the battlefield.
"I'll at least say, I'm glad I didn't buy that book about the legendary heroes, that right there was heavy! But this stack here is just about the same... oh well, but they didn't have to give me this tome for free, who knows what it does--- huh?" Robin stopped talking to himself when a burst of vibrant red hair caught his eye.
"Here it is, Kanna, open it and see what you get." Luna said, giving the box to her daughter. she opened the box, and what was inside was a flower hairpin, a red flower hairpin to be exact.
"Wow, really? I didn't expect this from you, I'd thought it'd be something expensive. I really love this! Thanks Mom!" The child said hugging her.
"Well, I thought why not give you a red flower myself, since you've given me so many. It matches your hair too after all."
"Well isn't that a sweet thing? That's one happy and lucky child right there." Robin commented. He stared at the red headed girl. He wasn't sure exactly, but he felt like he knew the woman. As he went to pick up his stack of books back up, something came to him in a flash.
"Wha---!?" His head was killing him. Then in an instant, his mind became filled with memories. Memories of a red haired, twintailed girl. After he recovered from the sudden event, Robin wrenched his head up, locking eyes with the red haired woman as the throbbing pain receded.
"S-Severa!? Is that you? What are you doing here? Wait a minute... where's Morgan? That means she's all alone." He put his stack of books in a safe place and started walking towards her.
"Can I show this to Dad? I wanna show him what I got." Kanna asked Luna nicely.
"Oh, fine. But don't tell him who gave you it, alright. I don't want him to know." Luna said to Kanna. As Kanna went to show her father what she just got, Robin was approaching Luna. Closely.
"Severa?!" Robin shouted to her.
!? Luna's body froze in fear at the sound of that name.
"W-Who said that?" The hair on the back of Luna's neck rose. She grabbed Kanna protectively and pulled the child close to her.
"It really is you. Oh, what a delight it is to see you again!" Robin proceeded to hug her.
Severa pushed him away. "B-Back off! Who are you?! How and why do you know my name?" Severa questioned Robin as if this was the first time they met.
"Wha... You can't be serious, right? Are you playing a game? Is this because I left you and Morgan? If that's the case then I'm sorry. In fact I don't even know why I left in the first place, huh... But anyway, now that we're reunited, we might as well go back to our--- Ow! What'd you do that for?" A sharp slap filled the air as Luna stuck at the stranger.
"Who the hell do you think you are, touching me like that! L-Look I don't know what you're talking about, but one thing's for sure, you know my name: Severa. Care to explain how you know me, who this "Morgan" is, and who are you?" The questions came by one after another. Robin was in shock, he couldn't believe it. He felt like she was telling the truth, but that wouldn't stop him.
"Looks like you really don't remember me... how funny..." Robin attempted at a chuckle, but was disheartened that his wife forgot everything about him.
"Well, looks like I'm going to have to jog your memory then. First off, my name is Robin, I'm a tactician from a realm called Ylisse. And how I know your name? Well you're from there, and what "I" remember is that you and I, we got married. That's also how we had a daughter named Morgan." As Robin explained, Severa grew slient until she said something to him about one detail he brought up.
"Wha...!? You're from there too?! But wait... I-I don't remember you at all. Not one bit. What I remember are my mother and father, but I look at you, and... nothing."
"How can that be? I remember every little thing that we did. From the time we bonded with Morgan for the first time, to the many times you called me a big fat tactical jerk. Or how about our vacation to the hot springs? I remember having to make it very special and perfect just for you. Come on, not one bit of what I'm saying is getting through you?"
Severa stayed slient. Robin took her hand and held it while looking at her eyes, Sev shuddered at this action. "Look, I know you really don't remember me, but I swear I'm telling the truth. You and I, are husband and wife." Robin said sincerely.
Seconds turn to minutes as the two looked deep into each other's eyes.
"...L-Look. I'm sorry, but I really don't know who you are. I'm married to someone else." Severa said to Robin as she separated her hand from his.
Robin gasped at this statement. He couldn't believe what his wife was saying to him.
"W-What? Y-You can't be serious, right? Who?! Tell me who he is!" Robin demanded. She stayed silent.
Robin broke the silence."Fine then. I see then. I'll just take my leave then, you go enjoy yourself!" Robin furiously said as he ran away crying from the person who he once called his wife and lover. Severa still remained silent. Robin went back to pick up his stack of books, with tears running down his face.
"I'll get you back Severa. We will be together again, I will count on it. My love still longs for you even after the fact that I was forgotten."

Evening struck. Kamui was outside his castle looking at the stars wondering when the next battle will come. He yawned as he went back to his house. As he walked in, he noticed Luna sleeping on the bed, dressed in the kimono she wore for their wedding. She was laying on her stomach, arms pulled tight to her chest, blankets covering her all up. Kamui went up to the defenseless girl and stroked her hair. It was a wonderful feeling for him. The girl had put so much work into her hair. The silkiness that he felt as he was holding it. He came closer to her face, stroking her soft cheeks.
"...Be more gentle..." Luna muttered.
Was she sleeptalking? Kamui wasn't sure, so he kept going, only this time he wanted more. Kamui went straight for a kiss on her lips. Mid-kiss, Luna woke up.
"Mhm..." Luna opened her eyes to see his lover taking the initiative and kissing her. Kamui backed away as soon as she woke up.
"Wha?! Y-YOU IDIOT!!!" Luna screamed at the top of her lungs. Kamui fell to the floor, flat on his back. She dragged herself out of bed and came up to Kamui.
"YOU PERV! Doing something like this... at least do it properly..." She grabbed Kamui's hand and picked him back up.
Luna's mood-swings are a sight to see, from having a tough side one minute, to being a very delicate girl the next. Mainly Kamui saw the soft side she had, and that's what he loved about her; Luna being who she really is.
Kamui had just decided to remove Luna's kimono, but...
"YOU'RE FINISHED" A figure busted through the door. It was a man with a long robe, with rustled grayish-white hair.
"Y-You..!" Luna looked up in anger at the man, while Kamui hadn't a clue.
"Yes, I came back for you... Severa!" Robin said. "And you must be her husband---" Robin said in disgust as he looked at him. "Wait, Kamui!?" Robin looked at Kamui in shock; the man he worked under was Severa's husband?!
"Hm..." Robin looked very closely at him. "That woman over there," He said, pointing to Luna. "She is Severa. MY wife, and I will have her back!"
"Um... pardon me, but she is Luna, I believe you have the wrong person." Kamui responded to Robin.
The two argued, Luna stayed silent throughout the whole thing, afraid to speak up. Robin told his story to Kamui for him to understand his side.
"I see... if what you said is to be true, then Luna and Severa are one and the same, to whom which we are both married to." Kamui said to himself, trying to putting the pieces together.
"I'm sorry I didn't really know about this, I wasn't aware of it at all. Does Lu--- ahem, Severa know about this?" Kamui asked.
"Um... about that..." Severa spoke up after the argument, "Please believe me, but I really don't know him..." Severa said nervously putting her head down.
"Unfortunately, she's telling the truth..." Robin agreed and defended the poor girl. "While I remember everything we've done together, she doesn't even know who I am. I hate to say it, but it's the truth."
"Then... how can we settle this? She doesn't remember you, but here I am married to the same person you call your wife?" Kamui said to Robin.
Minutes passed, and they hadn't figured out what to do to see who truly deserves to be with Severa. Severa sat on the bed, blushing over the fact of two men were fighting for her. To tell the truth, Severa quite liked that, it made her feel special, but not like this where she's married to someone else, apparently. After minutes passed, Kamui came up with an idea.
"I've got it!" Kamui exclaimed, "I know how settle this. We'll have a competition."
"I like that idea, to see who's the best for Severa. Oh-ho this will be easy, just you---"
"Well actually, I was thinking of something different, I'm sure you know what I'm thinking of."
"Huh, what do you mean..." Then it came to him. "Oh I see now. Heh-heh" Robin said, with a smirk on his face
"J-Just what are you idiots even saying!" Luna was confused at what the two were talking about.
"Oh, it's pretty easy to understand: To make love to you" Kamui stated. Severa's face became red to the thought of this.
"W-What?! YOU PERVS! You just..." Severa angrily barked at the two. "There's no way I want to be in it like this."
Deny as she might, it's a two-one win. She gave in the end. "F-Fine... But you better treat me right."
"Oh we will, and we shall see who'll pleasure you the most." The two said in unison.
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(FINALLY THE LEWD SHIT.)

"I shall go first. I mean I she IS my wife." Kamui took the first step in this competition. Robin scoffed, just waiting for Severa to be unamused at his way of pleasuring her. Kamui held Luna's hand and walked towards the bed together. it started out with a simple kiss, then he went for more! Kamui removed Luna's kimono and caressed her breast.
"Mmm...~" Luna moaned. She came closer to Kamui and put her tongue in his mouth. He put his hands behind her back, Luna following suit. A few seconds passed and Kamui slowly backed away from her, placing his finger on her mouth. She gave him a smug look, giggling. "Fufufu..." She sucked his finger at a slow pace. Kamui placed his other hand from her shoulder and rubbed her all the way down to her hips. And then, with no warning, he inserted his finger in her pussy. Luna shivered by his sneaky movement. His slender fingers went inside her, going in her as fast as he can. "G-Geez... if you keep going at this---"
"Get on with it, you two!" Robin was tapping his foot furiously.
Glaring at Robin, Kamui stopped and pulled out his fingers out of Luna's wet cunt. As Kamui was taking his clothes off, Luna lay down on the bed. She modestly spread her legs, revealing her clitoris. As for Kamui, his cock was hard, staring at the delicate girl in bed, naked.
"P-Please be gentle with me..." Luna asked to Kamui.
"...I'm sorry, Luna, but if I want you to be with me, I will have to deny this request." Kamui responded.
Wasting no time, Kamui slammed his hard cock into Luna. He had been hard since the stranger bursted through the door, and now he was harder then ever at the thought of fucking his wife in front of Robin. Luna cried beneath him, pushing her hips back against him in a plea for him to pick up the pace. He grabbed the bedframe, rocking his hips against her ass as he started to thrust into her furiously.
 Robin fumed with anger. This couldn't be right. And somehow, there she was, his wife, who claimed not to know who he was, beneath another man. Gods, there was no question she was enjoying it, the way she arched her back and moved her hips against him. Severa called out the other man's name, and Robin flinched. It was so wrong, but beneath the boiling anger, something else was swirling. It was almost...arousing, seeing her like this. All the marks of pleasure that he knew, the way her voice hitched when she moaned, and how she squeezed her eyes shut when she was getting close. He'd never been able to watch her ass push against his cock, or the way her teeth sunk into her lower lip when she was trying to stifle a moan.
"L-Luna, I think I'm about to..." Kamui was at his limit. He couldn't take it anymore, he thrust into Luna even faster then he could. Luna's moans became even louder. Soon the bed was rocking back and forth. Luna was clinging onto to the bed sheets, not handling the amount of pleasure she was having between her and Kamui.
"G-Give it to me! I-It's fine! Fill me with your love!" Luna demanded to Kamui. Robin was confused, he had never seen this side of Severa before.
"Here... it comes!" Kamui gave one last thrust and filled her with his seed. He pulled his dick out of Luna. Luna was panting wildly from the amount of ecstasy that she had received. Kamui gave Robin the go that it was his turn. "Your turn, best of luck to you. You might need it."
The grandmaster ignored Kamui's offense. As Robin was undressing himself, he glanced at Severa. She was on all fours on the bed, shaking her hips in a hypnotizing matter.
"Yes, I'm cute. B-But can you not stare at me like that...?" Severa blushed. "C-Come over a little closer..." This made Robin hard. He never thought of this ever coming from his wife. Whenever the two had been alone, she clinged onto him all the time, so he had to take action first. Robin savored this moment. He drew closer to Severa. He started out by groping her smooth ass. He then gave a light slap to her ass, the girl letting out a short, soft, moan. He peeked at her insides, filled with Kamui's semen. He rubbed her semen-filled pussy, teasing the girl. He then put his tongue inside of her and Severa yelped at the dirty tactics.
"Y-You idiot...! Be more gentle... d-do you have any idea how to treat a girl?"
"Oh just you wait." Robin said to her. "Now stand back!" Without any warning, Robin pulled her twintails, and thrust inside Severa, still in the same position she was in. "Oh man. You have no idea how long I've been wanting to do this with you. Those twintails of yours are just to good to resist!"
"Y-You..." Severa said with tears in her eyes from the pain. "Y-You could've at least told me! ...J-Jerk..." Robin pulled Severa's face closer to him and kissed her lips. It was a nostalgic taste that Robin still remembered after all these years.
"Now then. I'm gonna be making some new memories for you, my dear." Robin then pulled her twintails once again. "HERE'S HOW IT'S DONE!" Robin shouted while looking at Kamui, and gave it all he had by thrusting his hard cock into Severa. She moaned loudly as the grandmaster thrusted in and out of her. It started out in a slow rhythm, then Robin picked up the pace and started going fast.
"S-Stop it... I'll feel weird..." Severa, despite her denial, was enjoying it. "No way... i-it feels good."
Kamui was scared. She seems to be enjoying it more from someone else that wasn't her own husband. But technically, Robin was also her husband, going by his story. He stared at Severa's face, which was red from the enjoyment she was getting from Robin, her moaning was as loud as when Kamui was fucking her. It took even longer than Kamui's turn, and Robin showed no sign of being at his limit. But the more he looked at the two, he noticed his dick was getting big and hard again. As he took of this, he decided that was enough. He went over to Severa as she was having her insides ravaged by Robin's member.
"Luna... I-I-" Kamui didn't finish his sentence. For Luna, she understood what it was that Kamui wanted. She grabbed Kamui's cock and being jerking it up and down in front of Robin. The grandmaster couldn't believe it. He furiously thrust in Severa faster, without minding the girl's feelings.
"Oh gawds..." Severa moaned. " I-It's so good... I think I'm gonna-" Robin was at his limit, however he didn't want to show any sort of weakness to his rival. Severa jerked off Kamui at a faster pace, with Kamui also wanting to cum.
"L-Luna, I---"
"We're gonna make Morgan for real this time. CHECKMATE!!!"
"GAWDS!"
The trio all came at the same time. For Robin, inside of Severa, and Kamui, on Luna's face. Severa lay on her back on the bed, her cunt leaking cum and falling on the bed. She couldn't take anymore. They all lay together on the bed, Luna in the middle, Robin to her right, and Kamui to her left. Kamui asked her.
"Well? Who was the best?" Luna stayed silent, with a blush on her face.
"U-Um... T-To tell the truth, you were both about the same..." Silence grew between the three.
"Hm. Well then, I really don't like to say this, but..." Kamui broke the silence. "W-Why don't we... both be with her together?
"Well..." Robin pondered at the suggestion. " I really don't know how I got here, or how to get back home, but here-" He kissed Severa's cheek. "All I have and need is Severa, you may not remember me, but I know the times, memories we shared together, are real. So I ask this. Please let me be by your side, as a couple once more. I know you're married, but we are too. Let me make new memories for us, so you shall remember them as well." His words seemed to have touched Luna as she began sobbing at Robin's shoulders. "Now, now. I wanna see you smile, you barely do that even when we're alone. Kamui, I'm willing to put past this if you are."
"Same here, I want to make Luna happy. Luna, do you accept this?"
"Y-yes..." Luna nodded.
The two husbands had put aside their differences, for they both want to be at Severa's side together, without any envy between each other. The trio also took the time to accommodate this victory for both sides. Kamui kissed Luna's neck, and Robin massaged Severa's breast.
"S-Stop this... I can't take this anymore..." Luna pleaded but to no avail to the two. But again, Luna was enjoying this herself. Kamui grabbed the girl and put her above him, and hugged her. They kissed. Luna couldn't try to show what she really meant, so she looked away from Kamui. Kamui, without any regards, inserted his throbbing member in Luna. Robin came in to kiss Severa on the lips and held her hand. Her heart was beating fast. But of course, she tried not to show it... by talking about it. "My h-heart wasn't racing..."
Unlike the competition they had earlier, they both took their time, and gently handled the two's lover.
"We're sorry about earlier, this time, we're going to make YOU feel good!" Kamui said to Luna. Kamui took it at a slow pace just for her. Robin, however, came in to grind his hard cock onto Severa's butt.
"H-Hey, what do you think you're doing...?" Severa cried out.
"Just you see. Are you ready, Kamui?" Robin asked. Kamui nodded as a simple answer. At the same time, they had both thrust into their lover. Robin, in her asshole, while for Kamui, her pussy. However, it was at a gentle pace. For Severa, she couldn't handle it, especially after they had a go at her twice. The girl kept on moaning and moaning, and consecutively, they grew louder.
"Y-You idiots... you couldn't be gentle...? O-Oh..." Severa moaned louder as they got faster and faster. "My body's gotten... hot." Kamui and Robin took the time to hold her hand, each having one, Kamui held her right hand, and Robin her left hand.
"We're reaching our limit, just thought we tell you." One of the two warned her.
"Haa~"
"Ohh...~" Severa's moans stayed at the same volume. She couldn't contain herself. "I-It's so good... if you both keep doing this- I-It's fine if it's with you two... Do it inside." Luna said to the two.
"LUNA!!!"
"SEVERA!!!"
"AHH!!!"
They all came in unison. The two had grown tired, panting for a little bit, but Luna took this the most, panting a lot like crazy. The two men both hugged their wife, and caressed her face and hair. Severa's face was red with embarrassment.
"I love you Luna. I promise to always make you happy. You can count on it."
"I'm glad to be with you again. I will not leave you alone again. That was a mistake I should never have done. I love you Severa." The two both fell asleep after saying their promise and kissed her face.
"I... love you both too..." Severa kissed both of them on the cheek and held both of their hands as she closed her eyes.