I've been desperately searching for the name of this manga for weeks now.
A young man goes to clean up his mangaka friend's house and ends up helping out said friend by getting tied up as a drawing reference.
The friend ends up getting turned on seeing him in such a state and things escalate from there.
I don't remember most details of it but the young man is a big fan of this one mangaka which turns out to be the friend. And he even agrees to getting tied up just for an autograph. He wears glasses too I think??
And it's either a one shot or a two shot. It was with a bunch oneshots in the manga. Maybe on chapter 6??
Another one shot in the sand manga is a doctor x nurse, and the doctor even gets kidnapped at some point. Mentioning that in hopes you remember.
Please, please reply if you remember