【back fill/ Otokura Yui】Fit with your sister in fitness?

(1)Prologue

Good work~♪ Here’s a towel. Wipe off your sweat.

How did you like the free 3-day fitness trial?
This is the end of the menu.

It’s pretty intense, isn’t it?
If you continue to do this every day, you will lose a lot of weight.
～
～～
Okay, let’s do it again.
1、2、3、4、5

Keep it up, keep it up, keep it up.
I know it hurts.
Roll your body over and stay in the posture, good luck.

Yes, raise your body.

Okay, one more time.
I’ll pull you up.
1、2、3、4、5

Yeah, yeah, yeah, good, good.
Keep your body down.

You know, you’re staring at my chest.
I’m stretching for you.
I’m stretching for you
～
～～

(2)Hand job from behind(女性主導で)

You sit down and keep your legs spread. I’ll go around behind you and give you a hand job.
I’m going to push you back from this side.
Here we go…

I’ll push you back.
I’m sure you’re not the only one.

I’m sorry, I’m sorry, I’m sorry.
I know it’s a bit much, but I have to do this or I won’t be able to do it.
I’m sure you’ll be able to find something that works for you.
～
～～
I’ve already had my tits pressed against me a bit.

Don’t squirm. Concentrate on your stretching.

I don’t know…
No, no, no, no, no, you can’t hide it.

Your thighs, at the base, they’re kind of swelling up. ……

I’m sure you’re not the only one.
Did you get a boner from all the pressure?
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～～
Oh, my erection is so big, it’s a tent in my pants.
I’ll touch you more all over.

Nudge, nudge, nudge, nudge from top to bottom along the erection.
Nudge, nudge, nudge, nudge.

今度は下から上へ、Nudge, nudge, nudge, nudge.
Nudge, nudge, nudge, nudge.

Hahaha, you’ve got a really big boner.
I’m getting more and more excited too.

There you go. You can lean on me more, too.
I can feel the softness of your breasts on my back, ahhh…

I’m going to get my pants on, and now I’m going to get my cock underneath.
I’m going to touch you in the sack.
It feels really good here.
～
～～

(3)Pies and blowjob using a balance ball

(3) Using a balance ball to breastfeed and suck cock: Yes, this is a balance ball.
It’s so big that a woman like me can barely hold it.
I’m sure it’s a lot bigger than you think.

Yes, you can sit on it. That’s right, yes, you’re good.
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～～
But your dick looks really tight, doesn’t it?
I’ll take it out for you.

Of course you’ll be on your back, on a balance ball
I’ll let you out.
It’s a good way to get a good workout.

I’m sure you’ll be able to figure out what to do with your pants now that you’re defenseless.
I’m going to shift it and go.

If you don’t work hard, you’ll fall off the ball and fall on your butt.

I’ve got an erect penis, I’ve got an erect penis, I’ve got an erect penis, I’ve got an erect penis, I’ve got an erect penis.
Oh, maybe it’s because I stopped short earlier.

I’m sure you’ll be happy to hear that.

I’ll make you feel better with my breasts, you poor thing.
I don’t know what I’m going to do with my breasts, but I’m going to do it.
Once again, I’m embarrassed to say it: …… It’s pizzle, pizzle, pizzle: ……

I’m sure you know that because you’ve been staring at my breasts too.
They’re pretty amazing when you take them off.
That’s why my shirts are always so tight in the chest.
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～～
See, it’s soft and slippery and comfortable, right?
You can see the tip of my cock is shaking and I can feel it.
Here, here, here, I’ll rub and rub some more.

Rub, rub, rub, rub.
Rub, rub, rub, rub.

(4)Lying on the couch, ear licking on both sides(女性主導で)

Look, the balance ball is over.
Yes, get off. Oh, what’s wrong, your face is all red.
I think I got overexcited, I’m breathing hard, and I don’t look so good.

I’ve been on the balance ball all day.
I was on a balance ball for a long time, so I guess I got too much blood in my head.

I’ve been on a balancing ball for a while now, and I think I’ve got too much blood in my head.
Yeah, just lay back and relax, relax, relax.
～
～～
I’m going to do something naughty to you.
You stay in bed, and I’m going to do this to you, and I’m going to do this to you, and I’m going to do this to you, and I’m going to do this to you, and I’m going to do this to you.
From the left, I’m going to lick your ears.

I’ll lick your ears from the left.
Your ears are so soft and cute.
Hmmm, hmmm, hmmm, hmmm, hmmm, hmmm, hmmm.

I’m not sure what to do. Rororo.

It’s full of saliva, it’s dewy, and it’s sizzling.

Rero, rero-roo. Reroro. Rero, Rero, Rero, Rero.

Jujuru, jujuru, jujuru, jujuru

I’m sure you’ll be able to find something that works for you.
I’m going to pour a lot of–squirt, squirt, squirt, squirt… ……

I’m not sure what to say, but I’m sure you’ll understand.

～
～～

(5)Doggy style in front of a mirror(女性主導で)

(5) Doggy style in front of a mirror.
I’m going to get down on all fours so you can penetrate me from behind with your big fat cock.

I’ll be on all fours so you can penetrate me from behind with your big dick.
I’m not going to let anyone else do this to me.
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～～
Aww, my dick is still getting bigger.
I’m going to go now.

I’m so embarrassed that you’re staring at me like that.
I’ll leave my skirt up and take off my tight fitness pants.

I’m sure you’ve seen my cunt and asshole.
When I think about it, I’m so embarrassed, oh, my mind goes blank. …… Ugh ……

Ahi, ahi, you’re looking at me, and my cunt is quivering and shaking.

I’m sure you’ll be happy to know that I’m not the only one.

I’m being watched by a younger college student like you, and I’m feeling it.
I can’t take it anymore. …… I’m running out of patience, so hurry up and let me in. ……

I’d like to know what’s going on with you.

Oh, no, no, no, no, no, no, no, no, no, no, no, no, no, no.

I’m not sure what to do, but I’m going to do it. ……

～
～～

(6) Move to the mat, and go to the cowgirl position while being squeezed by breasts (woman’s initiative)

(6) I’m going to move to the mats and have my tits squeezed.
Here, can you stand? Come here.

Now I want you to get on top.

I’ll serve you sexually.
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～～
She raised her hips slowly, and then, “Oh, my God," she said, “I’ve got to get to the end of that cock.

I’m going to put my hand at the entrance of your cunt, and then I’m going to take your cock.

I’ll take a bite, sister.

Ahi, ahi, this posture, ah, come, ah, ah!
I can’t wait to get my cock deep inside you.

Hahi, hahiii, you look like you’re feeling good, too.

I’m glad to hear that my cunt is feeling pretty good.

I’m going to move, then. I’m going to make you feel even better.

I’m sure you’ll be happy to know that I’m not the only one who can’t get enough of your cock.
I’m going to treat you a lot in my mouth.

I’m sure you’ll be able to understand why I’ve been doing this for so long.
Ohhhh, your cock is making my insides squishy!

Haha, that’s proof that you’re feeling it. Oh, your cock, ooh.

I’m sure you’re not the only one.
～
～～

(7)主人公のSit up and go to normal position

(7) Get the hero up and into normal position.
(8) What’s wrong with you?
I can’t get enough.

I can’t get enough of it.
I can’t get enough of it.
I can’t wait to see what you have in store for me.
～
～～

My dick is so big, it’s completely erect!

Oh my god, it’s so good!
I’ve been rubbed up and down all over the inside of my cunt.
Oh, my God, oh, my God, oh, my God, oh, my God, oh, my God, oh, my God, oh, my God!

Oh my god, my cock is slipping in and out of my pussy.
I can’t wait to see what happens next.
It’s so good, I can’t even think straight!

Oh, no, no, no, no, no, no, no, no! Aaah, aaah–!

Oh, my God!
failure_translate
Young, strong, younger cock stirring my cunt…

I’m not sure what to do, but I’m sure you can do it. ……

～
～～

(8)Epilogueへ

Scenario by Asuha Asuka (@ashitaba_asuha)

Illustration: Ms. Kinako Yukimochi (@kinako_omochi3)

Voice actor: Ms. Otokura Yui (@OtkrYui)

Sound material:

-Mijinko’s material: The first masturbation sound made with a masturbator (circle mijinko)

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Planning and production
back fill

HP (https://ci-en.dlsite.com/creator/3008 )
back fill (@haruhiko3793)

List of works
(https://www.dlsite.com/maniax/circle/profile/=/maker_id/RG43138.html )