[Majirou] Bad Call (COMIC TENMA 2011-11) [desudesu] [Decensored]

A gorgeous drunk cousin stumbles home late once too often, and young Yuu is stuck playing babysitter—until she passes out in the bath and wakes to a very big surprise standing at attention. Panicking that she'll recognize him, he hides behind a mushroom mask and introduces himself as a servant ordered by 'Lord Mush-Room' to satisfy her, and the tipsy beauty eagerly plays along, slurping down his huge cock before mounting him for a bouncing, breast-heaving ride. With her massive chest swaying and her womb aching to be filled, she begs for his nakadashi and giggles about what their babies might look like.