Bạn gái của tôi khiến tôi nứng nhưng chị kế của tôi giúp tôi thoát khỏi ham muốn

After my girlfriend left me horny, I am very upset and my stepsister asks me why I told her about my situation that her friend has left me horny. She decides to help me as an act of solidarity. I gladly accept her help.