I'm your older step-sister and I'm choosing what clothes I'm going to take on the trip. You are in my room and I ask you to help me. We are family so I did not worry about changing in front of you. I'm trying on more and more sexy clothes and when I start asking your opinion about lingerie, I see that you have a massive erection. You are my little step-brother and your bonner is very funny to me. I encourage you to jerk off to your step-sister. It does not bother me. It helps me choose which outfit suits me best. And for the grand finale I have a very special look that is going to make you squirt cum all over your pants bro.