https://www.dlsite.com/books/work/=/product_id/BJ009308.html
As always, please support the artist and buy his works.

Love mother? Love mother?

I...have feelings for my mother..."
Tatsuhiko's feelings for his mother, Mioko, are awakened by a chance during a peaceful day.
In the midst of his growing feelings, Tatsuhiko finds a sex toy that Mioko had hidden away!
No...I...can't...anymore..."
Tatsuhiko can no longer suppress his lust and makes a choice....

The first installment of the forbidden incest series presented by the immoral genius!!

操妈狂魔

Base +5

What's with that page title lol

The work is called 恋母 and the author decided it's pronounced れんぼ. It's not a "what could the title possibly be?" situation.

Base +6, DOIHI3 +6

身材还行……对味

Base +6