My Step-Sister is the Best Wing Man and Tries to help me Cum Part 1, 15 min

My stepsister Paige is the best, I can always go to her for advice, lately, its been mostly about my girlfriend and our sex life together. I can not ejaculate with my girlfriend like I stay hard but can never cum. Paige gave me some advice that I tried tonight and of course, it did not work. Soon as I got home I went to talk to Paige about it, I told her I was still hard and I really wanted to cum. Like a good sister she offered to help me out with my problem, she was up to the challenge to see if she could make me cum. It was working until we heard our dad come home from work and almost walk in on us. I am not gonna quit, I am gonna try again with Paige..... PART 1 of 2