Yume’s brother fell ill and, divorced months ago, asked her to care for his two sons. Worried for her nephews, she agreed. Long since seeing them, the boys had grown. Sho-chan, the younger, was sweet, but Yu-chan, the elder, was naughty, constantly groping Yume’s breasts, ass, and pussy, making her endlessly horny. Seeing this, Sho-chan got aroused, his hard cock hurting. To ease his pain, Yume jerked him off. Unfamiliar with the sensation, he came all over her. Dirty, she took him to shower. Curious, Sho-chan stared at her body. Aroused herself, Yume taught him 'adult things.' At noon, after putting Sho-chan to nap, Yu-chan demanded to sleep with her. Mischievous, he groped her as she slept, then fucked her pussy despite Sho-chan nearby. That night, the brothers competed over whose cock was better, with Yume judging—by seeing who fucked her better...