[Otosan no Kurorekishi (Maemukina Do M)] Wanwan Otou-san [pinkuminku]

A flailing pharmaceutical salesman will do anything to push his surplus of 75mg Shirinuru capsules—including offering up his own father, collared and leashed like an eager house pet, to sweeten the deal for a doctor with buying power. What follows is a shameless showcase of obedience: the embarrassed daddy presented ass-up with his tail wagging, trembling through a milking, hands-free climax while being praised for what a good puppy he is, balls twitching and asshole clenching for the whole room to see. And when the humiliation boils over, a stern collar-and-belt punishment reminds this mutt exactly who holds his leash—with a whole series of sequels promising more training to come.