http://www.mangago.zone/read-manga/mousou_one_room/
This one maybe? Sorry if it isn't
I kinda forgot the characters. But the seme is wearing glasses when he's working. And he's calling the uke "brat". They're 1st encounter was when the documents(his novel) of seme flew the uke helped him then he noticed that the documents he's holding was the same as what he's reading. Then the uke found out that the guy(seme) is the one who's making the novel that was making him horny.
Why's my reply cutted!? I even typed the link! Hahahaha I totally write it like this..
"ah... Nevermind. I found it, thanks for your time and concern! I found it!
Here's the link!
http://www.mangago.zone/read-manga/19_sai_no_porno_endeavor/
Sorry that it looked rude. There's absolutely an error! Please forgive this humble person.
Hi guys! Need help! The seme is a writer of an erotic novel or manga erotic. Then the uke became his assistant because he got horny when he's reading it. And the seme is making the uke pose or using vibrator, butt plugs and stuffs even making him masturbate in front of him for reference to his story. The seme is an adult man while the uke is still a student(college I think). Thank you! It's a Japanese manga by the way and it's R-18! (SMEXY SCENES)