This is by Hikawa Hekiru! Pani Poni Dash gets pretty suggestive but never goes all the way.
Here's something that does.
https://exhentai.org/g/1280508/97d727dcb0/

>>280026730
>NOISE
I wasn't aware he was working on sfw at all, only that he did the odd non-H Touhou doujin back in the day.
Noise strikes me as the kind of person who won't ever completely separate from lewd stuff.