샤워하는 배다른 여동생을 위한 좋은 시간이 아닙니다. 내 자지를 따먹어

My step sister wants to take a shower but I have to handle more important stuff. How can I get rid of this boner, quickly? Maybe I should ask for her help. Last night, on the couch, she was acting weird with her feet on my legs.