[Bai Asuka] Tootsuki Tooka’s Sex-Filled Days as a Housewife (COMIC Magnum Vol. 155)

A devoted housewife named Mana welcomes her husband's director, Aizawa, into their home for dinner, never suspecting the friendly gesture will spiral into a secret affair that leaves her gagging on the older man's cock and calling him Master as he claims her mouth and ass. When her oblivious husband finally asks for a baby of their own, Mana's swelling belly ends in a delivery the grinning director congratulates in person—right beside the man who believes the child is his. Heavy-breasted, wide-hipped, and hungry in ways her marriage can't satisfy, Mana discovers that motherhood only leaves more time alone with the lover who truly owns her body.