Your step-brother comes to your birthday party. Crashes i should say. He humiliates you in front of everyone. When i take him into the other room to ask him to leave. He declines and says the only way he will leave is if i suck his dick. Of course i say no but he pulls it out and it’s huge. Like so big i kinda want to suck it… so i agree. Reluctantly. But I’m enjoying it too much. It barely fits in my mouth. As i start getting really into it… you walk in. And instead of leaving… your big older step-brother makes you stay so you can see him stretch my tiny pussy with his big cock. I’m enjoying it so much more than i expected… now we’re both bullying you about how small your dick is compared to his. It could never satisfy me now that he’s used me and filled me all of his cum.