Ani to Imouto no Shitai Shitai Shitai Koto - Vol. 3 Ch. 13 - Page 13

[MangaDex]

 

[ciera]

 

[YoshMate1209]

He tried his best. Unfortunately that's gonna end up hurting her more.

 

[Tds-PdV]

One of the rare cases where saying you have ED is better than telling the truth.

 

[Key_news]

Wait what !!, what is happening ?, his d can't hard on and he is impoten now

 

[SunSun]

Wait what !!, what is happening ?, his d can't hard on and he is impoten now

He's realizing that he actually fucked his sister.

That or being with Matsuri couldn't compare at all to his foggy memory of having fucked his sister.

 

[Substitution]

I'm getting a strong feeling that the "comedy" tag was supposed to be "psychological."

He's so detached from her he's not even having a reaction while imagining his sister.

 

[chusetto]

It's really normal to not get it up in your first time. All the nervousness and the pressure...

 

[rluka]

He sold his soul to his sister. He can't get hard without her permission.

On more serious note... lots of emotional issue.
Like chusetto says, nervousness.

And top it with all the guilts because he know he is using Matsuri as escape from the feeling he had for his sister, rather than from love, or even lust to Matsuri. Then the guilt of betraying Shizuku.

 

[InsertBagelRelatedPunHere]

Pretty much what I expected to happen. He's realizing not only that he did fuck her but also that she let him and then pretended it never happened. It'll be interesting to see if there's any consequence to that or if this is all just in his sister's plan and gets glossed over.

 

[Hacete]

Shouldn't the chapter be labelled ch. 14 - page 14 🤔

 

[ThePantyGod]

poor girl... the night will end sooner than expected

 

[MesaOracle]

Little sister has done a wonderful job of conditioning him. You can really feel the yandere vibe from her as she looked at her phone's gps tracker for her brother.
This song sums it up nicely:

 

[Virtualplayer]

Trained. Nice.

 

[phabrykMaester]

HOW COULD YOU NOT POP A BONER THE GIRL IS STILL CALLING YOU MASTER DURING THE DEED AAAAAAAAAAAAAAAAAAAAAAAAAAAA

 

[siricaoimhe]

HOW COULD YOU NOT POP A BONER THE GIRL IS STILL CALLING YOU MASTER DURING THE DEED AAAAAAAAAAAAAAAAAAAAAAAAAAAA

don't forget there's a bunch of different words that translate most-closely to "master" and she's not saying, f'rex, "goshujin-sama", she calls him 師匠 (shishou) so like, if you don't have a student-teacher fetish, that's really unlikely to push any go-buttons.

 

[AlphraLoust]

AAAAAAAAHHHHHHHHHH

 

[eggboy9000]

Damn, this is gonna be brutal for Matsuri. I'm both ready yet nervous to see how she takes losing to her Master's sister, especially when she has all those insecurities.

Thanks for the chapter, homie.

 

[destinyfvcker]

The wincest stays winning 😭😭

 

[Chronigan]

Little sister has done a wonderful job of conditioning him. You can really feel the yandere vibe from her as she looked at her phone's gps tracker for her brother.
This song sums it up nicely:

You just reminded me of "I don't like my big brother!" Poor bastard was throughly trained by his sister.