In a marriage with an age gap, when I entered the household, my beautiful mother-in-law was overwhelmed by unfamiliar housework and felt physically inactive. She was doing stretching exercises in the living room. My son approached her, drawn to the alluring buttocks prominently thrust out, skillfully coaxing her into her underwear. His desire reached its limit, and he yearned for his mother-in-law's body. As he thrust out her buttocks and fiercely devoured her pussy, my mother-in-law, driven by unsatisfied sexual desire, performed oral sex on his cock. Gasping with pleasure, my mother-in-law straddled his cock, sinking her hips down, shaking her lewd buttocks wildly as they intertwined and went mad!