PART 1: I am your gf, your grandpa has to move to our home since he is homeless, I say: Are you sure to move your grandpa in our house? He is very old, in his 80s, and it's embarrassing you that your step-father keeps the master bed all by himself and us to on the sofa, you're ok with that? you have a strange family dynamic, are you submissive to him? ok we'll make it work, I’ll be with you on sofa. PART 2: A few hours later I come to you with a very shocked and surprised expression and say: I completely forgot your grandpa was in the master room, we used that room for a long time you know, I walked into the room and he was there, he was masturbating, your grandpa, his cock is huge, I mean, that thing is wow, I've never seen a dick that big before, sorry I'm shocked, his hand was moving, it was a very long way from up to down of his cock, when he realized I was there he didn't stop, he just kept going looking at me, I wanted you to know, you didn't get after your grandpa as penis size, now I understand who the man of the house is, and why you are submissive to him since you are impotent with a small dick. So I kept watching him masturbate, he knew his huge cock attracted me, I was shocked of that super sized veiny old dick, his boss cock guaranteed him success, I saw him cum and it was a blast, he squirted all over the master bed, all covered in cum, his super sperm spurts like rain over me too, so since it is clear that your step-father has established dominance in your apartment, I will go to him in the master bedroom. PART 3: Ther is only me and grandpa, while we both are fucking I say: how can I not fuck your huge cock on master bed, you are the man of the house not that loser with tiny dick of your step-son. There was no way I couldn't come here with you to the master bedroom, you are the boss, you are the man of the house, it's your damn house now, your step-son is just the cuckold boy in the house, you hold the order, he with his limp cock can only stay on the sofa. I want to be part of the real man of the house, sir fuck me, the real landlord gets the pussy of the house, the man of the house can cum inside the pussy he wants, sir, I want to be your pussy of the house, I will give it to you whenever you want and we will put your step-son in his place. PART 4: after I come back to you and say: I knew you were awake, you heard what happened right? your grandpa is something else, I think it has already been established who is the man of the house, and I will be part of this, so you will continue to on the sofa, you are the young boy of the house. I'll leave the master bedroom door open so you can watch me and your grandpa fucking and you'll stroke your limp little cock. PART 5: me and grandpa fuck, you look at us and touch your limp cock, we both laugh at you, insult you, your size, youf impotence, your inferiority complex towards the man of the house. You are so young and little, grandstep-***** is the boss. I am very cruel.