The artist posted this on their twitter and for a few days then deleted it. I downloaded it in time and debated uploading it for a while, I've decided it would be a waste to let a full length doujin of the best Vtuber pair get lost to the ether.
The artist's twitter is usually private, but here's their pixiv: https://www.pixiv.net/en/users/20606314
Please try to keep a low profile if you visit, I don't think they want much attention

(同人誌) [たいこ] 村人に頼まれて禁欲薬を作る話 (アルス・アルマル、エクス・アルビオ) [DL版]

Base +6, bob1909bob +7, nembapro +6

BIG‧BIG‧FACE !

Base +6, j155430 +10, nembapro +6

甜到了，不愧是你，虾勇

Base +6, 幻之图包 +6

Is the artist's name mispelled or it's a different person?
"Taikou"'s works don't look like the style shown here.

Base +9

It's a completely different person. This wasn't done by a professional artist

Base +7, nembapro +6

https://www.pixiv.net/users/20606314
https://twitter.com/urnw/

This is the artist, their name is indeed "Taiko". I've saved an earlier version months ago, but somehow missed this one, thanks for saving them.
https://imgur.com/a/I3eLKQ5

Base +7

昨天看到两人见家长的视频，今天就看到本子。。。

Base +6

就要这种！就要这种！

Base +6

见家长的给个地址？

Base +6