Raw: https://e-hentai.org/g/1918544/63ce1efb57/
DLsite: https://www.dlsite.com/maniax/work/=/product_id/RJ323371.html

Summary: A sexually-frustrated young mother raising a son and daughter by herself because her husband is working abroad gets sexually trained by her son's friends.

Base +19, Kisaragi- +2, Coledas Ukgent +12, 58569 +6, Not Benedict +6, Bobbyki +10, Knightz +17

tfw no sequel after 2 years...

Base +11, hpsurfer2 +5, Coledas Ukgent +12, 58569 +6, Not Benedict +6, Bobbyki +10, 1776XKCD +7, pesc +8

oh wow so this is another case of author either disappearing/giving up or just not caring anymore.

Base +7, 5pect1er +6, Coledas Ukgent +12, 58569 +6, Not Benedict +6, pesc +8, OrcSlam +6

I didn't realize this at first, esp because I can't read Japanese buuuut, the sister is the older sibling of the two. That means the guy nailing her mom is the sister's brother. Well, half-brother. They have the same father and this is hinted at right from the get-go now that it's translated to EN. I thought the guy had tried to nail the sister but what prob happened is she somehow found out their connection. He calls her 'onee-san' which is a double-entendre (Onee-san= 'Young woman' but can also mean '[Older] Sister') that is why Yui (Daughter) reacts the way she does. The dress she shows off at the beginning is highly likely to be a gift from the guy that pump & dumped the mom aka the father. I had thought it was from the son's friend but it wouldn't make sense for Yui to deny her mom so aggressively if it had been him instead of the father.

Basically, there is a lot of potential for a variety of H-manga shenanigans down the line. It seems like the author laid the seeds of many future plot points & a foundation for a long story that never actually happened. Will her kids learn the truth? does Yui already know? was Shinji born from her husband? will Yui's father nail Yui while Ryo continues to pound the mom? will the mom get pregnant? is she already pregnant? Yui/Tomoe get pregnant from the same man even? the art was solid & the groundwork is there but the author continued nearly every other instead of this one. Meccha meccha fail desu ne. G fkking G.

Base +6