Hiiragi Popura
Group
Hyoui Lover
TypeDoujinshi
Language中文
SeriesN/A
Characters
Tags
Netorare ♀ Possession ♀ Full Color Gender Bender ♂

https://www.dlsite.com/maniax/work/=/product_id/RJ325329.html

Base +52

As stated on the English translated page for this work:
#1 is not reuploaded anywhere else, but as stated by runningnooblet, it's by hiiragi popura titled "Classmate"
#2, マイナー is potentially duokuma on any present day hentai sites.

Source(And guesswork):
1. By going to the dlsite link, the マイナー guy is also the artist for Fate/rewrite 〜凛と桜がサーヴァント化洗脳される本〜
2. Searching that doujinshi on this site will find the artist to be duokuma
3. (Guesswork): Since duokuma also does possession art, it's highly likely the 2nd piece is by duokuma, considering the artstyle also isn't too far apart to some other works like the KanColle one.

Base +3