[Dendoro Kakariya] Midare Kui (COMIC Magnum Vol. 129) [mimicu]

Hiring a tutor was supposed to fix her daughter's grades — instead, the smug young sensei ends up schooling the whole family, starting with the lonely big-breasted mother who can't wait for five o'clock to stuff herself full of toys, right up until her daughter walks in on the mess. Blackmail and lust tangle fast as he passes between the desperate milf and her blushing schoolgirl, groping Haruna's chest while mocking her mom's orgasm face, then bending the mother over the table while her daughter watches and waits her turn. By the end both women are moaning side by side for a shared climax, in a household where cheating, incest, and moral degeneration all earned straight A's.