Your little step-brother has always worshipped the ground you walked on. Doing everything you tell him. Giving you all his money when you ask. He never tells you no. You know he loves you in ways that he shouldn't and you've used that to your advantage. Today you decide you'll fuck him to keep him so hooked on you that he will do whatever you desire. You go into his room wearing your strap on whites he's in the shower. He walks out and for the first time you see his skinny little dick. You tell him of your desire to fuck him but he has to be bigger than that to fuck you. You drop the sheet exposing your tits and he cums instantly without touching his tiny dick. Such a huge load. In order to help him get hard you remove the sheet fully and start stroking your cock and instructing him on how to jerk his skinny soft penis. You notice he isn't getting hard and ask him if it does. He informs you it doesn't but you continue instructing him wanting to see him cum with his limp dick again. You tell him he can be your cuckold since he can't get hard and eat other mens cum from you every night. (here you are free to decide the filthy things you want him to do for you. The dirtier the better) you encourage him to cum throughout the video since he cums so easily and so quick trying to make him cum as much as possible so he has a lot of cum to eat (my record for this rp is 8 times whoever makes me cum the most will be who I use) in the end you make me eat all my cum as you get off to me eating my cum for you. The humiliation should be sweet and kind from a loving step-sister. Things like that's it step-brother cum from that skinny limp dick for me. Cum for your beautiful step-sister. Keywords that make me cum skinny limp dick, humiliating me for not getting hard. Encouraging me to cum for you. Tiny little white dick. Being a cuck. Those are my biggest triggers. Whether or not your self degrade yourself and talk about his much you love being a slut is strictly up to you. How filthy you talk about what you're going to make me do is strictly up to you. Stroking your girl cock(which is how you reference the strap on) the entire time is what I love to see. The smaller you can make your tits look the better