You know, I've always been jealous of my big sister. She always got the things that I wanted - got the boys, got the looks, got the talent, got everything and got away with everything too. I never thought that was fair. She was the golden girl - and it was fucking annoying! And honestly, when she first brought you home, I knew that I wasn't going to be able to put up with it any longer. I needed to do something about it. I needed to show her just how much I want to ruin her fun. And that starts with ruining you fucktard! Never seen something like this before? Well, let me talk you through it because I want you to understand just how I'm going to be torturing you and making my sister beg for my forgiveness! She might have got all the cute things like the dream-girl personality and the little-miss perfect attitude but I got all the bitchy qualities I need to make your life a total misery!
This is a chastity cage. It's there to hold your cock in place and make sure that, if you even so much as try to get hard, you're going to be snapped back into place as this thing scrunches you so tight and forces you to play by my rules. Something I think all men could use, honestly, but especially you. I'm sick of the way you and my big sister are around each other, and I know that you could both use a reason to knock it the fuck off. I've locked that cock of yours up for as long as it's going to take for me to get my message through to her. The key is hidden away somewhere far from here, so don't even bother looking for it. You really think I would be dumb enough to leave it somewhere you could find it? When I punish you, I want to make sure that you get it. And that means suffering every step of the way.
My sister and I are both super-stubborn, you know that? In fact, it's the only thing that I'd say we really have in common. And I know that, no matter how much she cares about you, she's not going to want to give in to me. Which means that you're going to stay locked up until she comes crawling to me and begging me to unlock your cage and let you out again. And I'm not going to take anything less than her total apology before I take that thing off. Which might take a while to get, since she's always so proud of her arrogance. You're going to have to rely on her to get you out of this thing, and I'm sure that it's going to take a long time before she cracks and lets you have what you want. Or maybe she's going to realize that she doesn't need your cock, after all. She might even end up cheating on you - just to avoid having to grovel to me for the key. She's that fucking stubborn... but y'know I couldn't care less - you can stay in there for the rest of your life - it's not my cock - and I'm not my stupid fucking sister!