LADA Decensored — AI mosaic removal version. My little sister was completely consumed by her club activities every day, with morning practice and after-school training. That serious little sister, who had been so devoted to her club, finally retired. While she used to relieve her stress through the club during her active days, she became a shut-in in her room after retiring. When I peeked inside, she was masturbating intensely and cumming over and over! Did her excess stamina lose its outlet and transform into a runaway sexual desire? When I secretly peeked at her, I got caught. I hurriedly apologized, but something was off... In fact, she directed the sexual desire that masturbation alone couldn't satisfy toward me! I ended up drenched in sweat, cumming repeatedly with my little sister who had too much stamina and lust! She's putting my cock to heavy use, even though I'm bad at sports and have below-average stamina... Please, give me a break!