Rookie OL Morifuji Ririko

Watching porn at work... of your coworker. This guy sure likes to live dangerously.

Can't NTR something not your's

Wow this is super fucked up... And kinda hot.

it's not really NTR when she's not even his GF

Feel like NTR but NO NTR in here. The first dude didn't have any real relationship with the girl. But the interesting thing is he thought he was too old and didn't deserve to have her so he just simply has a crush on her (good guy not like ugly bastard). He also told his co-worker he was fine with watching her from a far. Therefore, the second dude just tried to help him out ( win-win ). 

The way Matsukawa worked with the plot and art style were so good. Im gonna say amazing 10/10.

How is this even an NTR #SMH

oh, this one hurt...

This is weird. And I think this isn’t NTR. Isn’t it?

For an NTR, everyone seems happy in the end.

Don't forget that this guy (both of them really) took unsolicited photos/video of her. They're both rotten.

Man I love Matsukawa. He (she?) really knows how to work the idea of the duality of a person's normal life and their sex life, and how the gap between their "normal" selves and their selves during sex can make their sexual side seem more immoral and exciting.

How can it be netorare if they weren't in a relationship? A connection can't be broken if there is no connection.

Uh, ... well, Ikeda-san said he was content with watching Ririko-san from afar, so then Sasaki-kun couldn't help but oblige him. Another time and place Ikeda might have had the "intestinal fortitude" to do more than watch from afar. And from appearances, it's anyone's guess how Ririko might have responded to Ikeda actually approaching her.

Notwithstanding all that, perhaps there should be a disclaimer cautioning against doing such things "in real life" ... not everyone will have the luck of a hentai protagonist on their side.

DAYUM ... that was some smokin' hot stuff, Matsukawa-sensei!

I usually like NTR but this one made sad...I'm not into the NTR cuckhold stuff. I would like to say that the art was fantastic though! Thanks for the upload!

"You never ruin someone you're indebted to"? Funny. I like how he mentioned something about helping him break the ice, but then it eventually became "Oh I give you videos/fap material since you said you were okay with just watching". At least he seemed to appreciate it in the end though, and I guess his logic/conclusion he drew from the situation made enough sense to me.
Also, "How did he manage to change her mind so easily"? Honestly, I think you could have too, if you had just went for it...I actually found that ending quite interesting. Like, he said he regrets the outcome (him not going for it?) but he appreciates the tapes because they were exciting, and his friend even said he did it partly for himself even if the tapes were mostly for our main guy, so it's not like he's forcing himself to be with her just to provide his Senpai with fap material, I suppose.
But that ending...Well hey, first it's letting him watch them live, and then maybe one day, he'll let him join in? He says he can get her to agree with a lot of things, and that'd probably be one way to repay Senpai's kindness...But then I guess that NTR tag might carry a different meaning if things go in that direction.

Soon that guy will discover the joy of VR devices...