Now that I can have sex with all my party members, I shake my hips filled with lust.

I blow my semen all over women’s asses.

「 Ufufu ♥♥ I love this ♥♥ 」

Bloom, the young lady who came to play over to our mansion said.

However, my semen isn’t just in her ass.

Mohr-san, her attendant is also covered in semen.

「 I love licking Mohr’s cum-covered ass,♥♥ it’s like a steak with lots of sauce ♥♥ 」

「 Aah, Bloom-sama, please don’t. It’s too presumptuous of me to have my master lick my butt 」

Her loyalty gets in the way, and she has yet to reveal herself, but regardless, Bloom goes out of her way to show her lewdness, teasing her servant with me.

「 I want to establish a relationship of trust with Mohr that goes deeper beyond master-servant, so it’s okay for me to lick your butt. Mohr can lick my butt too ♥♥ 」

「 I’ll gladly lick Bloom-sama’s butt or even feet if you want to. But, getting the same treatment is… 」

「 I love Mohr’s tight ass, and I’m sure that it’s a meal if we cover it with Sao-kun’s cum. Especially slurping the semen that’s collecting at the narrow part of your anus 」

Bloom uses the tip of her tongue and drills into Mohr’s anus.

「 Nhiiiiiii♥♥ Not there ♥♥ Bloom-sama ♥♥ That place is dirty!!!!! 」

「 Rerorerorero ♥♥♥ Juru, what’s dirty? 」

「 That’s my butt hole ♥♥ That’s where I poop ♥♥ 」

Bloom became an anal-licking princess to humiliate her servant, who was still filled with shame.

I thrust my penis inside Bloom as she does that.

「 Ohoooooo ♥♥ What? Why so sudden on my pussy? 」

「 I don’t want the mood to be just with the two of you. So, I’m going to fuck the two of you 」

Panpanpanpanpan!!

I fucked Bloom’s little noble ass that she’s degenerated into a nasty slut who loves sex. The surface of her ass is so squishy that it became limp.

It’s receiving my penis.

「 Ohiii ♥♥ Ohiii ♥♥ I’m sorry, I was wrong to leave you alone! I apologize, you can have your way with my pussy ♥♥ 」

「 That’s my plan from the start 」

Bloom licks Mohr’s anus, and I fuck Bloom’s pussy with my dick.

This is such an amazing image.

It makes me feel glad to be alive.

「 Wait right there! 」

An intruder.

Who’s interrupting my happy time?

「 Nee-san? 」

The person who I gave my virginity, the most familiar meat toilet, my family and lover, Caliber-neesan.

「 It’s not like you to be late for sex. Hurry up and take off those clothes. Then we can have sex together 」

「 A tempting proposition but there’s something you need to see first! 」

「 Nee-san’s pussy? 」

「 You see that every day 」

Well yeah.

「 Outside the capital, there were many attractive women around Sao, and of course, there was a lot of sex. So, I thought to myself, maybe I might be overshadowed by the new face or new pussy 」

Not really.

I’m having sex with Nee-san more or less every night.

「 If I get comfortable with my position as the blood relative, or the first one, then Sao would get tired of me. So, I thought of improving my attractiveness to prevent that! 」

「 That aside, let’s fuck 」

「 So, I made this as part of that 」

She took off her clothes.

Oh, she’s going to take off her clothes and have sex with me. Or so I thought.

Under Nee-san’s clothes, which she undressed, is something clinging.

She’s almost naked, but she’s wearing something.

It covers only the least of her breast and crotch.

That’s what you call bra and panty.

She’s wearing a matching one.

「 Underwear? 」

Or so I thought, but it’s different.

The fabric seems firm for underwear and the decorations are fancy.

On the other hand, I don’t think it’s the same as a bathing suit.

Leather? Steel?

That’s not underwear or swimsuit material, right?

Nee-san who’s exposed practically on underwear, speaks triumphantly.

「 This is my armor! 」

「 Armor?! 」

「 Erotic armor with the widest exposure to keep Sao happy and safe in battle! 」

Armor? It’s so small that it looks like underwear or a swimsuit.

It only hides her crotch and boobs, the only part that really matters.

The separation is also exposing her belly button.

Ha!!

If we’re using swimsuits as an analogy, then it’s Bikini.

「 Bikini Armor?! 」

「 What’s that? 」

I never thought that I’d see bikini armor in the other world

No, I guess it’s because this is an isekai fantasy.

Nee-san doesn’t have any of my previous world’s knowledge, and she just pulled a bikini armor on a hunch.

What an amazing sex sense!

「 That’s amazing Nee-san! You’re a knight class to begin with so the bikini armor looks great on you! 」

「 Isn’t that right? Do you want to fuck me right now? 」

「 Of course! 」

I pulled my dick out of Bloom’s pussy and immediately attacked Nee-san.

I thought of just sliding it off and shoving it in but…huh, it didn’t work.

「 You can’t just slip it on the side because there’s a metal plate attached to make the panty stronger 」

「 What? Dammit!! 」

「 But don’t worry! When you want to do it ♥♥ 」

Nee-san pulls the waist strap and the knot unties, then the panty portion of the bikini armor comes off.

It dropped on the floor and made a dry clang. As expected of metal stuff.

「 I got naked on my lower half in no time ♥♥ Sao’s favorite sister’s pussy is now exposed! What will you do Sao? 」

「 Of course, I’ll fuck it 」

「 Kyaa♥♥♥♥♥♥ 」

I immediately thrust my dick into her hole and make our flesh clap.

When was the last time I went after Nee-san greedily like this?

I guess we get into the mood when thinking that we’re siblings.

If so, she’s back to being fresh, and Nee-san got it perfectly!

「 I was wondering why you’ve been away recently, so you were working on something like that? 」

Starf-ojousama heard the commotion and came over.

Her expression looks like she’s shocked.

「 Ojou-sama! Yes, I made good use of the salary Ojou-sama paid and finally finished it! 」

Send some money to Mother in the countryside too.

If you’re going to spend it all on some lewd item like this. Ojou-sama’s paying for all our tuition and living expenses. I’m sending almost all of my money to Mother, okay?!

Nee-san, and Ojou-sama, you don’t have to put everything into your sex life!

That aside!

「 I went through blacksmiths, tanners, and tailors to have them collaborate you know! I couldn’t complete it with just one of them 」

「 Did they look at you like you were an idiot wherever you went? 」

Ojou-sama’s unusually harsh today.

I guess she’d be disappointed if Nee-san’s using her salary to create such a stupid item.

「 Right, I would defend my party members if I could but there’s nothing I can do about it 」

「 Armor is worn to protect yourself, isn’t it? if you reduce the area it covers, then that doesn’t accomplish its design 」

Bloom and Mohr-san who got interrupted in sex come over.

「 No, this is quite high in defense despite how it looks. Look, there are magic stones embedded to create a defense ward right there 」

「 The nipple cup part? 」

「 There’s a blue magic stone on the left nipple making a physical defense field, and the red on the right nipple creates the magic defense. I even went to a magic tool shop to get this installed 」

「 The tool itself seems to be good. That must’ve been expensive 」

Yet why use such an expensive magic tool for such a crappy thing?

「 Besides, what’s the point of wearing bikini armor? If it’s protective gear, then you need a wide range of protection, right? 」

Mohr-san’s giving a fair argument, but Nee-san says…

「 So I can have sex with Sao anytime? 」

「 Why? 」

「 We got our provisional exploration license, and dive into dungeons, right? During that, Sao gets horny and I’ll take in his dick. If I were in full armor and rigged up, then it would be too hard to put it on and off every time we have sex 」

With the bikini armor, she can take off her bra and panty and get naked instantly.

We can enjoy having sex in the dungeon naked without a care in the world and put it back on when we’re done.

That’s efficient, nope.

「 We’re not having sex in the dungeon in the first place 」

「 I know Sao’s feelings, but you should be sensible. We should at least concentrate on exploring while we’re in a dungeon. We can still have sex right after we got out of the place in one piece 」

A concentrated barrage of fair arguments hits Nee-san.

「 But it’s also easy to take off my clothes if I need to go to the bathroom, see? 」

「 That makes sense 」

That’s the only valid counterargument, but when I thought that the bikini armor would be left in storage.

「 We might need sex in dungeons 」

「 「 「 Huh? 」 」 」

Starf-ojousama, Bloom, and Mohr-san peel their eyes at my comment.

「 No look, I’ve experienced a lot of stuff coming to the capital. I moved up a level, and with that, I learned some new skills 」

Some of them are quite useful.

Two of them.

Sex Boost, and Sex Charge.

「 Sex boost temporarily enhances the basic abilities of the person I had sex with. They increase power, speed, strength, and magic evenly. There are a lot of detailed conditions for the enhancement rate, but if all of them are met, then the maximum multiplier is about 400% 」

「 「 400?! 」 」

The other skill, sex charge, also works on the person that I have sex with, restoring their stamina and mana.

Furthermore, if they have any injuries, it’ll heal them too.

With this skill, we could spend all our energy in the dungeon and run out of stamina, and quickly revive ourselves with just a single round of sex.

It also boosts our strength, which is an added bonus.

「 So, I want us to have sex in the dungeon, can’t we? 」

「 「 「 ………… 」 」 」

No, it’s not that I want to have sex all the time.

「 It’s also thrilling to be in a dungeon under such dangerous conditions. And the immorality of not caring about safety in a place that’s about to burn is there 」

「 「 「 …… 」 」 」

Starf-ojousama clears her throat.

「 Caliber-san 」

「 Yes? 」

「 List the stores you used to produce the bikini armor. We’ll appropriate the total cost 」

「 What are you going to do with it? 」

「 I’m going to get my own bikini armor too! I’ll seduce Sao-san with my sexy outfit and have him do me in the dungeon! I’m the rearguard so I can wear a lighter armor 」

Ojou-sama fell.

「 I’ll cover the cost for Caliber-san’s bikini armor and it’s a necessary expense for going into the dungeon 」

「 We’ll make the best bikini armor too! Call our family designer! And give me the most magnificent bikini armor I deserve! And Mohr needs a more robust design! 」

「 I’m putting those on too. 」

My party will be putting on their bikini armor.

In the meantime, the school gave us permission and provided us with a temporary license to explore the dungeon.

With this, we can enter general dungeons in various locations with the status of a student.

Wearing Bikini Armor.

We can’t wait to see what adventures await us.